CERN
Coordinates: 46°14′03″N 6°03′10″E / 46.23417°N 6.05278°E
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Formation | September 29, 1954[1] |
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Headquarters | Meyrin, Canton of Geneva, Switzerland |
Membership
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Official languages
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English and French |
Council President
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Sijbrand de Jong[2] |
Fabiola Gianotti | |
Website | home |
The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN (/ˈsɜːrn/; French pronunciation: [sɛʁn]; derived from the name "Conseil Européen pour la Recherche Nucléaire"; see History), is a European research organization that operates the largest particle physics laboratory in the world. Established in 1954, the organization is based in a northwest suburb of Geneva on the Franco–Swiss border, (46°14′3″N 6°3′19″E / 46.23417°N 6.05528°E) and has 21 member states.[3] Israel is the first (and currently only) non-European country granted full membership.[4]
The term CERN is also used to refer to the laboratory, which in 2013 had 2,513 staff members, and hosted some 12,313 fellows, associates, apprentices as well as visiting scientists and engineers[5] representing 608 universities and research facilities.[6]
CERN's main function is to provide the particle accelerators and other infrastructure needed for high-energy physics research – as a result, numerous experiments have been constructed at CERN as a result of international collaborations.
CERN is also the birthplace of the World Wide Web. The main site at Meyrin has a large computer facility containing powerful data processing facilities, primarily for experimental-data analysis; because of the need to make these facilities available to researchers elsewhere, it has historically been a major wide area networking hub.
Contents
History[edit]
![](http://web.archive.org./web/20160413122023im_/https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Cernfounders.png/230px-Cernfounders.png)
The convention establishing CERN was ratified on 29 September 1954 by 12 countries in Western Europe.[1] The acronym CERN originally represented the French words for Conseil Européen pour la Recherche Nucléaire (European Council for Nuclear Research), which was a provisional council for building the laboratory, established by 12 European governments in 1952. The acronym was retained for the new laboratory after the provisional council was dissolved, even though the name changed to the current Organisation Européenne pour la Recherche Nucléaire (European Organization for Nuclear Research) in 1954.[7] According to Lew Kowarski, a former director of CERN, when the name was changed, the acronym could have become the awkward OERN, and Heisenberg said that the acronym could "still be CERN even if the name is [not]".[citation needed]
CERN's first president was Sir Benjamin Lockspeiser. Edoardo Amaldi was the general secretary of CERN at its early stages when operations were still provisional, while the first Director-General (1954) was Felix Bloch.[8]
The laboratory was originally devoted to study of atomic nuclei, but was soon applied to higher-energy physics, concerned mainly with the study of interactions between subatomic particles. Therefore, the laboratory operated by CERN is commonly referred to as the European laboratory for particle physics (Laboratoire européen pour la physique des particules), which better describes the research being performed there.
Scientific achievements[edit]
Several important achievements in particle physics have been made through experiments at CERN. They include:
- 1973: The discovery of neutral currents in the Gargamelle bubble chamber;[9]
- 1983: The discovery of W and Z bosons in the UA1 and UA2 experiments;[10]
- 1989: The determination of the number of light neutrino families at the Large Electron–Positron Collider (LEP) operating on the Z boson peak;
- 1995: The first creation of antihydrogen atoms in the PS210 experiment;[11]
- 1999: The discovery of direct CP violation in the NA48 experiment;[12]
- 2010: The isolation of 38 atoms of antihydrogen;[13]
- 2011: Maintaining antihydrogen for over 15 minutes;[14]
- 2012: A boson with mass around 125 GeV/c2 consistent with long-sought Higgs boson.[15]
The 1984 Nobel Prize for Physics was awarded to Carlo Rubbia and Simon van der Meer for the developments that resulted in the discoveries of the W and Z bosons. The 1992 Nobel Prize for Physics was awarded to CERN staff researcher Georges Charpak "for his invention and development of particle detectors, in particular the multiwire proportional chamber."
Computer science[edit]
The World Wide Web began as a CERN project named ENQUIRE, initiated by Tim Berners-Lee in 1989 and Robert Cailliau in 1990.[16] Berners-Lee and Cailliau were jointly honoured by the Association for Computing Machinery in 1995 for their contributions to the development of the World Wide Web.
Based on the concept of hypertext, the project was intended to facilitate sharing of information among researchers. The first website was activated in 1991. On 30 April 1993, CERN announced that the World Wide Web would be free to anyone. A copy[17] of the original first webpage, created by Berners-Lee, is still published on the World Wide Web Consortium's website as a historical document.
Prior to the Web's development, CERN had pioneered the introduction of Internet technology, beginning in the early 1980s. A short history of this period can be found at CERN.ch.[18]
More recently, CERN has become a facility for the development of grid computing, hosting projects including the Enabling Grids for E-sciencE (EGEE) and LHC Computing Grid. It also hosts the CERN Internet Exchange Point (CIXP), one of the two main internet exchange points in Switzerland.
Faster-than-light neutrino anomaly[edit]
On 22 September 2011, the OPERA Collaboration reported the detection of 17 GeV and 28 GeV muon neutrinos, sent 730 kilometers (450 miles) from CERN near Geneva, Switzerland to the Gran Sasso National Laboratory in Italy, traveling apparently faster than light by a factor of 2.48×10−5 (approximately 1 in 40,000), a statistic with 6.0-sigma significance.[19] However, in March 2012 it was reported by a new team of scientists for CERN, Icarus, that the previous experiment was most likely flawed and will be retested by scientists of both the Opera and Icarus teams;[20] on 16 March, CERN stated in a press release that the results were flawed due to an incorrectly connected GPS-synchronization cable.[21]
Particle accelerators[edit]
Current complex[edit]
![](http://web.archive.org./web/20160413122023im_/https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Cern-accelerator-complex.svg/300px-Cern-accelerator-complex.svg.png)
CERN operates a network of six accelerators and a decelerator. Each machine in the chain increases the energy of particle beams before delivering them to experiments or to the next more powerful accelerator. Currently active machines are:
- Two linear accelerators generate low energy particles. Linac2 accelerates protons to 50 MeV for injection into the Proton Synchrotron Booster (PSB), and Linac3 provides heavy ions at 4.2 MeV/u for injection into the Low Energy Ion Ring (LEIR).[22]
- The Proton Synchrotron Booster increases the energy of particles generated by the proton linear accelerator before they are transferred to the other accelerators.
- The Low Energy Ion Ring (LEIR) accelerates the ions from the ion linear accelerator, before transferring them to the Proton Synchrotron (PS). This accelerator was commissioned in 2005, after having been reconfigured from the previous Low Energy Antiproton Ring (LEAR).
- The 28 GeV Proton Synchrotron (PS), built during 1954—1959 and still operating as a feeder to the more powerful SPS.
- The Super Proton Synchrotron (SPS), a circular accelerator with a diameter of 2 kilometres built in a tunnel, which started operation in 1976. It was designed to deliver an energy of 300 GeV and was gradually upgraded to 450 GeV. As well as having its own beamlines for fixed-target experiments (currently COMPASS and NA62), it has been operated as a proton–antiproton collider (the SppS collider), and for accelerating high energy electrons and positrons which were injected into the Large Electron–Positron Collider (LEP). Since 2008, it has been used to inject protons and heavy ions into the Large Hadron Collider (LHC).
- The On-Line Isotope Mass Separator (ISOLDE), which is used to study unstable nuclei. The radioactive ions are produced by the impact of protons at an energy of 1.0–1.4 GeV from the Proton Synchrotron Booster. It was first commissioned in 1967 and was rebuilt with major upgrades in 1974 and 1992.
- The Antiproton Decelerator (AD), which reduces the velocity of antiprotons to about 10% of the speed of light for research of antimatter.
- The Compact Linear Collider Test Facility, which studies feasibility for the future normal conducting linear collider project.
Large Hadron Collider[edit]
Many activities at CERN currently involve operating the Large Hadron Collider (LHC) and the experiments for it. The LHC represents a large-scale, worldwide scientific cooperation project.
The LHC tunnel is located 100 metres underground, in the region between the Geneva International Airport and the nearby Jura mountains. It uses the 27 km circumference circular tunnel previously occupied by the Large Electron-Positron Collider (LEP) which was shut down in November 2000. CERN's existing PS/SPS accelerator complexes will be used to pre-accelerate protons which will then be injected into the LHC.
Seven experiments (CMS, ATLAS, LHCb, MoEDAL,[23] TOTEM, LHC-forward and ALICE) will be performed on the collider; each of them will study particle collisions from a different aspect, and with different technologies. Construction for these experiments required an extraordinary engineering effort. For example, a special crane was rented from Belgium to lower pieces of the CMS detector into its underground cavern, since each piece weighed nearly 2,000 tons. The first of the approximately 5,000 magnets necessary for construction was lowered down a special shaft at 13:00 GMT on 7 March 2005.
The LHC has begun to generate vast quantities of data, which CERN streams to laboratories around the world for distributed processing (making use of a specialized grid infrastructure, the LHC Computing Grid). During April 2005, a trial successfully streamed 600 MB/s to seven different sites across the world.
The initial particle beams were injected into the LHC August 2008.[24] The first attempt to circulate a beam through the entire LHC was at 8:28 GMT on 10 September 2008,[25] but the system failed because of a faulty magnet connection, and it was stopped for repairs on 19 September 2008.
The LHC resumed operation on 20 November 2009 by successfully circulating two beams, each with an energy of 3.5 teraelectronvolts. The challenge for the engineers was then to try to line up the two beams so that they smashed into each other. This is like "firing two needles across the Atlantic and getting them to hit each other" according to the LHC's main engineer Steve Myers, director for accelerators and technology at the Swiss laboratory.
At 1200 BST on 30 March 2010 the LHC successfully smashed two proton particle beams travelling with 3.5 TeV (teraelectronvolts) of energy, resulting in a 7 TeV event. However, this was just the start what was needed for the expected discovery of the Higgs boson. When the 7 TeV experimental period ended, the LHC revved to 8 TeV (4 TeV acceleration in both directions) during March 2012, and soon began particle collisions at that rate. In early 2013 the LHC was deactivated for a two-year maintenance period, to strengthen the huge magnets inside the accelerator. Eventually it will attempt to create 14 TeV events. In July 2012, CERN scientists announced the discovery of a new sub-atomic particle that was possibly the much sought after Higgs boson believed to be essential for formation of the Universe.[26] In March 2013, CERN announced that the measurements performed on the newly found particle allowed it to conclude that this is a Higgs boson.[27]
On 5 April 2015 and after two years of maintenance and consolidation, the LHC restarted for a second run. Proton beams successfully circulated in the 27-kilometer ring in both directions. The first ramp to the record-breaking energy of 6.5 TeV was performed on 10 April 2015.[28][29]
Decommissioned accelerators[edit]
- The original linear accelerator (LINAC 1).
- The 600 MeV Synchrocyclotron (SC) which started operation in 1957 and was shut down in 1991.
- The Intersecting Storage Rings (ISR), an early collider built from 1966 to 1971 and operated until 1984.
- The Large Electron–Positron Collider (LEP), which operated from 1989 to 2000 and was the largest machine of its kind, housed in a 27 km-long circular tunnel which now houses the Large Hadron Collider.
- The Low Energy Antiproton Ring (LEAR), commissioned in 1982, which assembled the first pieces of true antimatter, in 1995, consisting of nine atoms of antihydrogen. It was closed in 1996, and superseded by the Antiproton Decelerator.
Possible future accelerators[edit]
CERN, in collaboration with groups worldwide, is investigating two main concepts for future accelerators: A linear electron-positron collider with a new acceleration concept to increase the energy (CLIC) and a larger version of the LHC, a project currently named Future Circular Collider.
Sites[edit]
The smaller accelerators are on the main Meyrin site (also known as the West Area), which was originally built in Switzerland alongside the French border, but has been extended to span the border since 1965. The French side is under Swiss jurisdiction and there is no obvious border within the site, apart from a line of marker stones. There are six entrances to the Meyrin site:[citation needed]
- A, in Switzerland, for all CERN personnel at specific times.
- B, in Switzerland, for all CERN personnel at all times. Often referred to as the main entrance.
- C, in Switzerland, for all CERN personnel at specific times.
- D, in Switzerland, for goods reception at specific times.
- E, in France, for French-resident CERN personnel at specific times. Named "Porte Charles de Gaulle" in recognition of his role in the creation of CERN.[30]
- Inter-site tunnel, in France, for equipment transfer to and from CERN sites in France by personnel with a specific permit. This is the only permitted route for such transfers. By the CERN treaty, no taxes are payable when such transfers are made. Controlled by customs personnel.[27][31]
The SPS and LEP/LHC tunnels are almost entirely outside the main site, and are mostly buried under French farmland and invisible from the surface. However, they have surface sites at various points around them, either as the location of buildings associated with experiments or other facilities needed to operate the colliders such as cryogenic plants and access shafts. The experiments are located at the same underground level as the tunnels at these sites.
Three of these experimental sites are in France, with ATLAS in Switzerland, although some of the ancillary cryogenic and access sites are in Switzerland. The largest of the experimental sites is the Prévessin site, also known as the North Area, which is the target station for non-collider experiments on the SPS accelerator. Other sites are the ones which were used for the UA1, UA2 and the LEP experiments (the latter which will be used for LHC experiments).
Outside of the LEP and LHC experiments, most are officially named and numbered after the site where they were located. For example, NA32 was an experiment looking at the production of so-called "charmed" particles and located at the Prévessin (North Area) site while WA22 used the Big European Bubble Chamber (BEBC) at the Meyrin (West Area) site to examine neutrino interactions. The UA1 and UA2 experiments were considered to be in the Underground Area, i.e. situated underground at sites on the SPS accelerator.
Most of the roads on the CERN Meyrin and Prévessin sites are named after famous physicists, such as Richard Feynman, Niels Bohr, and Albert Einstein.
Participation and funding[edit]
Member states and budget[edit]
Since its foundation by 12 members in 1954, CERN regularly accepted new members. All new members have remained in the organization continuously since their accession, except Spain and Yugoslavia. Spain first joined CERN in 1961, withdrew in 1969, and rejoined in 1983. Yugoslavia was a founding member of CERN but quit in 1961. Of the 21 members, Israel joined CERN as a full member on 6 January 2014,[32] becoming the first (and currently only) non-European full member.[33]
Member state | Status since | Contribution (million CHF for 2014) |
Contribution (fraction of total for 2014) |
Contribution per capita[note 1] (CHF/person for 2014) |
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Founding Members[note 2] | ||||
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29 September 1954 | 30.5 | 2.5% | 2.7 |
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29 September 1954 | 19.3 | 1.6% | 3.4 |
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29 September 1954 | 169.2 | 14.0% | 2.6 |
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29 September 1954 | 222.9 | 18.5% | 2.8 |
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29 September 1954 | 18.0 | 1.5% | 1.6 |
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29 September 1954 | 126.2 | 10.5% | 2.1 |
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29 September 1954 | 50.6 | 4.2% | 3.0 |
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29 September 1954 | 28.0 | 2.3% | 5.4 |
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29 September 1954 | 28.7 | 2.4% | 3.0 |
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29 September 1954 | 40.0 | 3.3% | 4.9 |
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29 September 1954 | 152.6 | 12.7% | 2.4 |
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29 September 1954[37][38] | 0 | 0% | 0 |
Acceded Members[note 3] | ||||
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1 June 1959 | 24.4 | 2.0% | 2.9 |
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1 January 1983[40][41] | 91.1 | 7.6% | 2.0 |
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1 January 1986 | 13.2 | 1.1% | 1.3 |
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1 January 1991 | 15.3 | 1.3% | 2.8 |
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1 July 1991 | 29.3 | 2.4% | 0.8 |
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1 July 1992 | 7.1 | 0.6% | 0.7 |
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1 July 1993 | 11.3 | 0.9% | 1.1 |
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1 July 1993 | 5.5 | 0.5% | 1.0 |
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11 June 1999 | 3.1 | 0.3% | 0.4 |
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6 January 2014[32] | 22.1 | 1.8% | 2.7 |
Associate Member in the pre-stage to Membership[note 4] | ||||
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15 March 2012[42] | 1.0 | 0.1% | 0.1 |
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1 April 2016[43] | |||
Associate Members | ||||
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6 May 2015[44] | % | ||
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31 July 2015[45] | % | ||
Candidates for Accession | ||||
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11 February 2010[46] | 7.9 | 0.7% | 0.4 |
zaTotal Members, Candidates and Associates | [47] | 1,117.392.8% |
- ^ Based on the population in 2014.[34]
- ^ 12 founding members drafted the Convention for the Establishment of a European Organization for Nuclear Research which entered into force on 29 September 1954.[35][36]
- ^ Acceded members become CERN member states by ratifying the CERN convention.[39]
- ^ Additional contribution from Candidates for Accession and Associate Member States.[39]
Maps of the history of CERN membership |
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Enlargement[edit]
Associate Members, Candidates:
Serbia became a candidate for accession to CERN on 19 December 2011, signed an association agreement on 10 January 2012[48][49] and became an official "Associate Member in the pre-stage to Membership" on 15 March 2012.[42]
Turkey signed an agreement to Associate Membership on 12 May 2014[50] became an associate member on 6 May 2015.
Pakistan signed an agreement to Associate Membership on 19 December 2014[51] became an associate member on 31 July 2015.[52][53]
Cyprus signed an agreement to Associate Member State of CERN in the pre-stage to Membership on 5 October 2012. On 1 April 2016, following the official ratification by the Republic of Cyprus Cyprus became an Associate Member.[43]
International relations[edit]
This section is outdated. (June 2015) |
Four countries have observer status:[54]
Russia – since 1993
Japan – since 1995
United States – since 1997
India – since 2002
Also observers are the following international organizations:
UNESCO – since 1954
European Commission – since 1985
- JINR - since 2014
Non-Member States (with dates of Co-operation Agreements) currently involved in CERN programmes are:
Algeria
Argentina – 11 March 1992
Armenia – 25 March 1994
Australia – 1 November 1991
Azerbaijan – 3 December 1997
Belarus – 28 June 1994
Bolivia
Brazil – 19 February 1990 & October 2006
Canada – 11 October 1996
Chile – 10 October 1991
China – 12 July 1991, 14 August 1997 & 17 February 2004
Colombia – 15 May 1993
Croatia – 18 July 1991
Cyprus – 14 February 2006
Ecuador
Egypt – 16 January 2006
Estonia – 23 April 1996
Georgia – 11 October 1996
Iceland – 11 September 1996
Iran – 5 July 2001
Jordan - 12 June 2003.[55] MoU with Jordan and SESAME, in preparation of a cooperation agreement signed in 2004.[56]
Lithuania – 9 November 2004
Macedonia – 27 April 2009[57]
Malta – 10 January 2008[58][59]
Mexico – 20 February 1998
Montenegro – 12 October 1990
Morocco – 14 April 1997
New Zealand – 4 December 2003
Peru – 23 February 1993
Saudi Arabia – 21 January 2006
Slovenia – 7 January 1991
South Africa – 4 July 1992
South Korea – 25 October 2006.
Ukraine – 2 April 1993
United Arab Emirates – 18 January 2006
Vietnam
CERN also has scientific contacts with the following countries:[60]
Cuba
Ghana
Ireland
Latvia
Lebanon
Madagascar
Malaysia
Mozambique
Palestinian Authority
Philippines
Qatar
Rwanda
Singapore
Sri Lanka
Taiwan
Thailand
Tunisia
Uzbekistan
Venezuela
International research institutions, such as CERN, can aid in science diplomacy.[61]
Associated institutions[edit]
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This section requires expansion. (October 2013) |
Public exhibits[edit]
Facilities at CERN open to the public include:
- The Globe of Science and Innovation, which opened in late 2005 and is used four times a week for special exhibits.
- The Microcosm museum on particle physics and CERN history.
CERN also provides daily tours to certain facilities such as the Synchro-cyclotron (CERNs first particle accelerator) and the superconducting magnet workshop.
In popular culture[edit]
![](http://web.archive.org./web/20160413122023im_/https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/Shiva%27s_statue_at_CERN_engaging_in_the_Nataraja_dance.jpg/170px-Shiva%27s_statue_at_CERN_engaging_in_the_Nataraja_dance.jpg)
- CERN's Large Hadron Collider is the subject of a (scientifically accurate) rap video starring Katherine McAlpine with some of the facility's staff.[63][64]
- CERN is depicted in an episode of South Park (Season 13, Episode 6) called "Pinewood Derby". Randy Marsh, the father of one of the main characters, breaks into the "Hadron Particle Super Collider in Switzerland" and steals a "superconducting bending magnet created for use in tests with particle acceleration" to use in his son Stan's Pinewood Derby racer. Randy breaks into CERN dressed in disguise as Princess Leia from the Star Wars saga. The break-in is captured on surveillance tape which is then broadcast on the news.[65]
- John Titor, a self-proclaimed time traveler, alleged that CERN would invent time travel in 2001.
- CERN is depicted in the visual novel/anime series Steins;Gate as SERN, a shadowy organization that has been researching time travel in order to restructure and control the world.
- In a documentary entitled Particle Fever, CERN is explored throughout the inside, and depicts the events surrounding the discovery of the Higgs Boson in 2013
- In Dan Brown's mystery-thriller novel Angels & Demons, a canister of antimatter is stolen from CERN.[66]
- In the popular children's series The 39 Clues, CERN is said to be an Ekaterina stronghold hiding the clue hydrogen.
- In Robert J. Sawyer's science fiction novel Flashforward, at CERN, the Large Hadron Collider accelerator is performing a run to search for the Higgs boson when the entire human race sees themselves twenty-one years and six months in the future.
- In season 3 episode 15 of the popular TV sitcom The Big Bang Theory titled "The Large Hadron Collision", Leonard and Raj travel to CERN to attend a conference and see the LHC.
- The 2012 student film Decay, which centers on the idea of the Large Hadron Collider transforming people into zombies, was filmed on location in CERN's maintenance tunnels.[67]
- The Compact Muon Solenoid at CERN was used as the basis for the Megadeth's Super Collider album cover.
- In Denpa Kyoushi, the main character is scouted by "CERM"
- In Super Lovers, Haruko (Ren's mother) worked at CERN, and Ren was taught by CERN professors
- CERN forms part of the back story of the massively multiplayer augmented reality game Ingress.[68]
See also[edit]
References[edit]
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- ^ "Professor Sijbrand de Jong elected as next President of CERN Council". CERN press office. CERN. Retrieved 18 January 2016.
- ^ "Member States". International relations. CERN. Retrieved 25 November 2015.
- ^ CERN to admit Israel as first new member state since 1999
- ^ "CERN Annual Report 2013 – CERN in Figures". CERN. Retrieved 4 September 2014.
- ^ "A global endeavour". CERN. 15 July 2015.
- ^ "The Name CERN". CERN. 30 September 2011. Retrieved 16 August 2012.
- ^ "People and things : Felix Bloch". CERN Courier. CERN. Retrieved 1 September 2015.
- ^ "CERN.ch". Public.web.cern.ch. Retrieved 20 November 2010.
- ^ "CERN.ch La". Public.web.cern.ch. Retrieved 20 November 2010.
- ^ "CERN.ch". Public.web.cern.ch. Retrieved 20 November 2010.
- ^ Fanti, V.; et al. (1998). "A new measurement of direct CP violation in two pion decays of the neutral kaon". Physics Letters B 465: 335. arXiv:hep-ex/9909022. Bibcode:1999PhLB..465..335F. doi:10.1016/S0370-2693(99)01030-8.
- ^ "Antihydrogen isolation". CNN. 18 November 2010.
- ^ Jonathan Amos [6 June 2011]BBC © 2011 Retrieved 2011-06-06
- ^ CERN experiments observe particle consistent with long-sought Higgs boson | CERN press office. Press.web.cern.ch (2012-07-04). Retrieved on 2013-07-17.
- ^ "CERN.ch". Public.web.cern.ch. Retrieved 20 November 2010.
- ^ "W3.org". W3.org. Retrieved 20 November 2010.
- ^ "CERN.ch". CERN.ch. Retrieved 20 November 2010.
- ^ Adrian Cho, Neutrinos Travel Faster Than Light, According to One Experiment, Science NOW, 22 September 2011.
- ^ The Associated Press, "Einstein Proved Right in Retest of Neutrinos' Speed", The Associated Press, 17 March 2012.
- ^ "CERN Press Release". Press.web.cern.ch. Retrieved 4 July 2012.
- ^ "CERN Website – LINAC". Linac2.home.cern.ch. Retrieved 20 November 2010.
- ^ CERN Courier, "MoEDAL becomes the LHC's magnificent seventh", 5 May 2010
- ^ Overbye, Dennis (29 July 2008). "Let the Proton Smashing Begin. (The Rap Is Already Written.)". The New York Times.
- ^ "CERN press release, 7 August 2008". Press.web.cern.ch. 7 August 2008. Retrieved 20 November 2010.
- ^ "'God particle': New particle found, could be the Higgs boson, CERN scientists say". The Times Of India. 4 July 2012.
- ^ a b "New results indicate that particle discovered at CERN is a Higgs boson". CERN press release. Retrieved 4 September 2014.
- ^ O'Luanaigh, Cian. "First successful beam at record energy of 6.5 TeV". CERN: Accelerating science. CERN. Retrieved 24 April 2015.
- ^ O'Luanaigh, Cian. "Proton beams are back in the LHC". CERN: Accelerating science. CERN. Retrieved 24 April 2015.
- ^ <Please add first missing authors to populate metadata.> (November 2004). "Red Carpet for CERN's 50th". CERN bulletin.
- ^ "CERN Host relations service page". CERN. Retrieved 4 September 2014.
- ^ a b "CERN International Relations – Israel". Retrieved 5 July 2014.
- ^ Rahman, Fazlur. (2013-11-11) Israel may become first non-European member of nuclear research group CERN – Diplomacy and Defense Israel News. Haaretz. Retrieved on 2014-04-28.
- ^ List of countries by population
- ^ ESA Convention (PDF) (6th ed.). European Space Agency. September 2005. ISBN 92-9092-397-0.
- ^ "CONVENTION FOR THE ESTABLISHMENT OF A EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH". CERN Council website. CERN. Retrieved 16 July 2012.
- ^ "Member States". International relations. CERN. Retrieved 25 November 2015.
- ^ "Member States". CERN timelines. CERN. Retrieved 25 November 2015.
- ^ a b "CERN Member States". CERN Council website. CERN. Retrieved 16 July 2012.
- ^ "Member States: Spain". International Relations. CERN. Retrieved 25 November 2015.
- ^ "Member States". CERN timelines. CERN. Retrieved 25 November 2015.
- ^ a b "CERN Associate Members". CERN. 16 March 2012. Retrieved 5 July 2014.
- ^ a b "Cyprus". international-relations.web.cern.ch. Retrieved 2016-04-04.
- ^ "Turkey". cern.ch. Retrieved 28 August 2015.
- ^ http://international-relations.web.cern.ch/International-Relations/nms/pakistan.html
- ^ International Relations. "Candidate for accession: Romania". CERN website. CERN. Retrieved 21 October 2015.
- ^ "Member States' Contributions – 2014". CERN website. CERN. Retrieved 6 July 2014.
- ^ "Vesti – Srbija zvanično postala član CERN-a". B92. Retrieved 4 July 2012.
- ^ "Serbia expected to become CERN Associate Member". CMS Experiment web site. CERN. 18 January 2012. Retrieved 5 July 2014.
- ^ "Turkey to become Associate Member State of CERN". CERN press release. CERN. 12 May 2014. Retrieved 5 July 2014.
- ^ "Pakistan Becomes the First Associate CERN Member from Asia". Government of Pakistan press releases. Ministry of Foreign Affairs, Government of Pakistan. 20 June 2014. Retrieved 5 July 2014.
- ^ "Pakistan becomes Associate Member State of CERN | CERN". home.web.cern.ch. Retrieved 2015-08-01.
- ^ "Pakistan officially becomes an associate member of CERN - The Express Tribune". Retrieved 2015-08-01.
- ^ "Observers". International Relations. CERN. Retrieved 15 December 2015.
- ^ "CERN International Relations – Jordan". International-relations.web.cern.ch. Retrieved 4 July 2012.
- ^ "CERN International Relations – SESAME". International-relations.web.cern.ch. 17 October 2011. Retrieved 4 July 2012.
- ^ "''Macedonia joins CERN (SUP)''". Mia.com.mk. Retrieved 20 November 2010.
- ^ "Prime Minister of Malta visits CERN". CERN Bulletin. 10 January 2008. Retrieved 23 May 2014.
- ^ "Malta signs agreement with CERN". Times of Malta. 11 January 2008. Retrieved 23 May 2014.
- ^ "Member states". CERN. Retrieved 23 May 2014.
- ^ Quevedo, Fernando (July 2013). "The Importance of International Research Institutions for Science Diplomacy". Science & Diplomacy 2 (3).
- ^ "ESO and CERN Sign Cooperation Agreement". Retrieved 21 December 2015.
- ^ "Large Hadron Rap". YouTube. Retrieved 20 November 2010.
- ^ "Large Hadron Collider Rap Video Is a Hit", National Geographic News. 10 September 2008. Retrieved 13 August 2010.
- ^ "Southparkstudios.com". South Park Studios. Retrieved 25 May 2011.
- ^ "Angels and Demons". CERN. Retrieved 31 January 2012.
- ^ Boyle, Rebecca (31 October 2012). "Large Hadron Collider Unleashes Rampaging Zombies". Retrieved 22 November 2012.
- ^ A year of Google Ingress January 2014
External links[edit]
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Wikimedia Commons has media related to CERN. |
- Official website of CERN: CERN Accelerating science
- CERN at 50
- CERN Courier – International journal of high-energy physics
- Israel may become first non-European member of nuclear research group CERN
- Big Bang Day: The Making of CERN, September 2008, A BBC Radio program
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