- published: 27 Aug 2011
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The bottom quark or b quark, also known as the beauty quark, is a third-generation quark with a charge of −1⁄3 e. Although all quarks are described in a similar way by quantum chromodynamics, the bottom quark's large bare mass (around 7000420000000000000♠4.2 GeV/c2, a bit more than four times the mass of a proton), combined with low values of the CKM matrix elements Vub and Vcb, gives it a distinctive signature that makes it relatively easy to identify experimentally (using a technique called B-tagging). Because three generations of quark are required for CP violation (see CKM matrix), mesons containing the bottom quark are the easiest particles to use to investigate the phenomenon; such experiments are being performed at the BaBar, Belle and LHCb experiments.
The bottom quark is also notable because it is a product in almost all top quark decays, and is a frequent decay product for the Higgs boson. The bottom quark was theorized in 1973 by physicists Makoto Kobayashi and Toshihide Maskawa to explain CP violation. The name "bottom" was introduced in 1975 by Haim Harari. The bottom quark was discovered in 1977 by the Fermilab E288 experiment team led by Leon M. Lederman, when collisions produced bottomonium. Kobayashi and Maskawa won the 2008 Nobel Prize in Physics for their explanation of CP-violation. On its discovery, there were efforts to name the bottom quark "beauty", but "bottom" became the predominant usage.
The Higgs boson is an elementary particle in the Standard Model of particle physics. It is the quantum excitation of the Higgs field—a fundamental field of crucial importance to particle physics theory, first suspected to exist in the 1960s, that unlike other known fields such as the electromagnetic field, takes a non-zero constant value almost everywhere. The question of the Higgs field's existence has been the last unverified part of the Standard Model of particle physics and, according to some, "the central problem in particle physics".
The presence of this field, now believed to be confirmed, explains why some fundamental particles have mass when, based on the symmetries controlling their interactions, they should be massless. The existence of the Higgs field would also resolve several other long-standing puzzles, such as the reason for the weak force's extremely short range.
http://quicknuclearscience.webs.com/apps/videos/ I give a brief overview of the bottom quark, it's properties, and stuff like that.
this is my first video, and its about quark, which are fundamental particles
The Large Hadron Collider (LHC), the giant particle accelerator at the CERN laboratory in Geneva, Switzerland, will restart operations in 2015, at higher energies and intensities than ever before. In its first run, the LHC experiments ATLAS and CMS discovered the long-sought Higgs boson. Now, researchers are gearing up to search for new and even more exotic phenomena. Many of the possibilities involve particles that decay to the bottom quark, a rare and unusual species of quark with a distinctive appearance in particle detectors. Identifying and measuring bottom quarks in LHC collisions requires extremely high-speed silicon pixel detectors. In this lecture, SLAC's Michael Kagan describes the cutting-edge technology used to image bottom quarks and its use in the search for new types of elem...
Download the EP at http://bquarkmusic.bandcamp.com The cows are running through the desert A Blue tavern, over a hill of ashes Lightning flowers in the eternal darkness Dancing dervish over the sound of silence Let me tell you why: Imagine living in a farm into the space near the stars, with pigs in green and reddish eyes and mercury rivers passing by Imagine that you had to flee from the planet earth where you used to live It wasn’t anymore what it used to be there was only fire and no more sea And now you are living in the... B.35, a station in the space where even God forgets How was the real life, how was the native land How was the smell of love, cause you are alone Like it or not is the place you live in B.35, a station near the stars, where everything looks so strange And you ...
In which Hank plays a song for you...the video was made in Illustrator and After Effects and it took a ridiculously long time to do. I hope you like it. HERE ARE A LOT OF LINKS TO NERDFIGHTASTIC THINGS: Shirts and Stuff: http://dftba.com/artist/30/Vlogbrothers Hank's Music: http://dftba.com/artist/15/Hank-Green John's Books: http://amzn.to/j3LYqo ====================== Hank's Twitter: http://www.twitter.com/hankgreen Hank's Facebook: http://www.facebook.com/hankimon Hank's tumblr: http://edwardspoonhands.tumblr.com John's Twitter: http://www.twitter.com/realjohngreen John's Facebook: http://www.facebook.com/johngreenfans John's tumblr: http://fishingboatproceeds.tumblr.com ====================== Other Channels Crash Course: http://www.youtube.com/crashcourse SciShow: http://www.you...
Video shows what bottom quark means. A quark having a fractional electric charge of -1/3 and a mass about 4,100 to 4,400 MeV. Symbol: b. bottom quark synonyms: beauty quark, bottom. Bottom quark Meaning. How to pronounce, definition audio dictionary. How to say bottom quark. Powered by MaryTTS, Wiktionary
A quark ( /ˈkwɔrk/ or /ˈkwɑrk/) is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.[1] Due to a phenomenon known as color confinement, quarks are never directly observed or found in isolation; they can be found only within baryons or mesons.[2][3] For this reason, much of what is known about quarks has been drawn from observations of the hadrons themselves. There are six types of quarks, known as flavors: up, down, strange, charm, bottom, and top.[4] Up and down quarks have the lowest masses of all quarks. The heavier quarks rapidly change into up and down quarks through a process of particle decay: the transformation from a higher ma...
http://alienspacesciencenews.wordpress.com/ http://theideagirlsays.wordpress.com/ http://victoriastaffordapsychicinvestigation.wordpress.com/ http://www.twitter.com/theideagirl Researching the Higgs Boson Mass Particle Theories, video blogging my formula ideas for CERN and others to try. This is a spin off from the WOW alien radio signal videos which also contain formula's in them for the Higgs Boson Signal. Once I realized this (found that in feb 2012 - CERN posted their results in June 2012) I started to cross reference key words I found in your articles from your blogs, SCIENCE magazine articles and news stories on CERN's reports. 29 Sept 2012 Keyword searches from the HERA ONE - HERA SIX - Higgs Mass Boson Particles Videos To search for the Higgs boson two beams of particles are...
http://quicknuclearscience.webs.com/apps/videos/ I give a brief overview of the bottom quark, it's properties, and stuff like that.
this is my first video, and its about quark, which are fundamental particles
The Large Hadron Collider (LHC), the giant particle accelerator at the CERN laboratory in Geneva, Switzerland, will restart operations in 2015, at higher energies and intensities than ever before. In its first run, the LHC experiments ATLAS and CMS discovered the long-sought Higgs boson. Now, researchers are gearing up to search for new and even more exotic phenomena. Many of the possibilities involve particles that decay to the bottom quark, a rare and unusual species of quark with a distinctive appearance in particle detectors. Identifying and measuring bottom quarks in LHC collisions requires extremely high-speed silicon pixel detectors. In this lecture, SLAC's Michael Kagan describes the cutting-edge technology used to image bottom quarks and its use in the search for new types of elem...
Download the EP at http://bquarkmusic.bandcamp.com The cows are running through the desert A Blue tavern, over a hill of ashes Lightning flowers in the eternal darkness Dancing dervish over the sound of silence Let me tell you why: Imagine living in a farm into the space near the stars, with pigs in green and reddish eyes and mercury rivers passing by Imagine that you had to flee from the planet earth where you used to live It wasn’t anymore what it used to be there was only fire and no more sea And now you are living in the... B.35, a station in the space where even God forgets How was the real life, how was the native land How was the smell of love, cause you are alone Like it or not is the place you live in B.35, a station near the stars, where everything looks so strange And you ...
In which Hank plays a song for you...the video was made in Illustrator and After Effects and it took a ridiculously long time to do. I hope you like it. HERE ARE A LOT OF LINKS TO NERDFIGHTASTIC THINGS: Shirts and Stuff: http://dftba.com/artist/30/Vlogbrothers Hank's Music: http://dftba.com/artist/15/Hank-Green John's Books: http://amzn.to/j3LYqo ====================== Hank's Twitter: http://www.twitter.com/hankgreen Hank's Facebook: http://www.facebook.com/hankimon Hank's tumblr: http://edwardspoonhands.tumblr.com John's Twitter: http://www.twitter.com/realjohngreen John's Facebook: http://www.facebook.com/johngreenfans John's tumblr: http://fishingboatproceeds.tumblr.com ====================== Other Channels Crash Course: http://www.youtube.com/crashcourse SciShow: http://www.you...
Video shows what bottom quark means. A quark having a fractional electric charge of -1/3 and a mass about 4,100 to 4,400 MeV. Symbol: b. bottom quark synonyms: beauty quark, bottom. Bottom quark Meaning. How to pronounce, definition audio dictionary. How to say bottom quark. Powered by MaryTTS, Wiktionary
A quark ( /ˈkwɔrk/ or /ˈkwɑrk/) is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.[1] Due to a phenomenon known as color confinement, quarks are never directly observed or found in isolation; they can be found only within baryons or mesons.[2][3] For this reason, much of what is known about quarks has been drawn from observations of the hadrons themselves. There are six types of quarks, known as flavors: up, down, strange, charm, bottom, and top.[4] Up and down quarks have the lowest masses of all quarks. The heavier quarks rapidly change into up and down quarks through a process of particle decay: the transformation from a higher ma...
http://alienspacesciencenews.wordpress.com/ http://theideagirlsays.wordpress.com/ http://victoriastaffordapsychicinvestigation.wordpress.com/ http://www.twitter.com/theideagirl Researching the Higgs Boson Mass Particle Theories, video blogging my formula ideas for CERN and others to try. This is a spin off from the WOW alien radio signal videos which also contain formula's in them for the Higgs Boson Signal. Once I realized this (found that in feb 2012 - CERN posted their results in June 2012) I started to cross reference key words I found in your articles from your blogs, SCIENCE magazine articles and news stories on CERN's reports. 29 Sept 2012 Keyword searches from the HERA ONE - HERA SIX - Higgs Mass Boson Particles Videos To search for the Higgs boson two beams of particles are...
The Large Hadron Collider (LHC), the giant particle accelerator at the CERN laboratory in Geneva, Switzerland, will restart operations in 2015, at higher energies and intensities than ever before. In its first run, the LHC experiments ATLAS and CMS discovered the long-sought Higgs boson. Now, researchers are gearing up to search for new and even more exotic phenomena. Many of the possibilities involve particles that decay to the bottom quark, a rare and unusual species of quark with a distinctive appearance in particle detectors. Identifying and measuring bottom quarks in LHC collisions requires extremely high-speed silicon pixel detectors. In this lecture, SLAC's Michael Kagan describes the cutting-edge technology used to image bottom quarks and its use in the search for new types of elem...
Roberto Franceschini offered this talk on March 25th, 2015, as part of the IFIC Seminars. "Energy peaks and future progress on the top quark mass measurement" by Dr. Roberto Franceschini (CERN) Abstract: In this talk I will review recent experimental results on the measurement of top quark mass and their relation to open theoretical issues about the physics of the Standard Model and beyond. With the goal of getting a better understanding of these issues, I will present a class of new top quark mass measurement techniques. The proposed measurement determines the top quark mass from the position of the peak of the energy distribution of the top quark decay products (for instance bottom quark jets or hadrons). Preliminary results on the top quark mass determination from energy distributions...
John Huth author of the book "The Lost Art of Finding Our Way" describing techniques and cultures of navigation predating the invention of the nautical chronometer. He is a professor of experimental particle physics at Harvard University. Professor Huth is working on the decay of the Higgs into pairs of bottom quarks, and also on upgrades to the ATLAS Muon Spectrometer. He also teaches a Primitive Navigation course and is a member of the Radcliffe Institute for Advanced Study’s Venture Faculty Program. The goal of the Program is to foster multidisciplinary studies that cut across the boundaries of traditional academic fields. We talk to John Huth about how we can learn to navigate without modern technologies. for more tracking talks visit our radio sitehttp://www.blogtalkradio.co...
In particle physics, mesons (/ˈmiːzɒnz/ or /ˈmɛzɒnz/) are hadronic subatomic particles composed of one quark and one antiquark, bound together by the strong interaction. Because mesons are composed of quark sub-particles, they have a physical size, with a diameter of roughly one fermi, which is about 2⁄3 the size of a proton or neutron. All mesons are unstable, with the longest-lived lasting for only a few hundredths of a microsecond. Charged mesons decay (sometimes through mediating particles) to form electrons and neutrinos. Uncharged mesons may decay to photons. Both of these decays imply that color is no longer a property of the byproducts. Mesons are not produced by radioactive decay, but appear in nature only as short-lived products of very high-energy interactions in matter, betwee...
Der Vortrag "Urbausteine der Materie – die fabelhafte Welt der Quarks" in der Reihe "Physik im Theater" stellt diesmal die Kleinsten in den Mittelpunkt. Die Elementarteilchenphysik unterscheidet im Standardmodell verschiedene Arten von Teilchen. Gestatten: Up und Down, Charm und Strange, Bottom und Top. Die Quarks. Sie gelten als die kleinsten Bausteine der Materie, aus ihnen setzen sich die Atomkern-Bausteine Protonen und Neutronen zusammen. Die Existenz der Quarks wurden von Theoretikern vorhergesagt, aber erst nach und nach im Experiment nachgewiesen. Zwar konnte noch nie ein einzelnes Quark in einem Experiment dingfest gemacht werden, dennoch zweifelt heutzutage niemand an der Existenz dieser Grundbausteine. Univ.-Prof. Dr. Hartmut Wittig vom Institut für Physik der Johannes Gutenberg-...
A quark (/ˈkwɔrk/ or /ˈkwɑrk/) is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. Due to a phenomenon known as color confinement, quarks are never directly observed or found in isolation; they can be found only within hadrons, such as baryons (of which protons and neutrons are examples), and mesons. For this reason, much of what is known about quarks has been drawn from observations of the hadrons themselves. There are six types of quarks, known as flavors: up, down, strange, charm, bottom, and top. Up and down quarks have the lowest masses of all quarks. The heavier quarks rapidly change into up and down quarks through a process of ...
Science Documentary: Large Hadron Collider, Time, Galaxy Formation a Documentary on Particle Physics What is the Universe made of? That is what scientists are trying to answer with the help of the Large Hadron Collider at CERN in Geneva, Switzerland, and the FERMIlab just outside of Chicago. 80% of the matter that fills the Universe is invisible, and this matter is referred to as Dark Matter, yet all matter in the Universe is made out of the same constituents. Matter is made up of atoms, atoms are made up of electrons circling around nuclei, the nucleus consists of a proton and a neutron. But within those particles ly other subatomic particles called quarks. The particles holding the quarks together are called the gluons. Electromagnetism is what hold the electrons in orbit around ...
250 BCE Archimedes' principle: Archimedes 1514 Heliocentrism: Nicholas Copernicus 1589 Galileo's Leaning Tower of Pisa experiment: Galileo Galilei 1600 Earth's magnetic field discovered : William Gilbert 1613 Inertia: Galileo Galilei 1621 Snell's law: Willebrord Snellius 1660 Pascal's Principle: Blaise Pascal 1660 Hooke's law: Robert Hooke 1687 Laws of motion and law of gravity: Newton 1780 1782 Conservation of matter: Lavoisier 1785 Inverse square law for electric charges confirmed: Coulomb 1801 Wave theory of light: Young 1803 Atomic theory of matter: Dalton 1805 1806 Kinetic energy: Young 1814 Wave theory of light, interference: Fresnel 1820 Evidence for electromagnetic interactions: Ampère, Biot, Savart 1824 Ideal gas cycle analysis, internal combustion engine: Sadi Carnot 1827 Electr...
Google Tech Talk June 16, 2010 ABSTRACT: Emmy Noether made perhaps the most significant discovery of the 20th century. A female Jewish intellectual in Nazi Germany (you can do that math), Emmy's was a special approach to life. Noether's Theorem ties the laws of nature -- from Newton's laws to thermodynamics to charge conservation -- directly to the geometry of space and time, the very fabric of reality. It is the basis for the standard model of particle physics, quantum electrodynamics, and grand unified theories including supersymmetry and superstrings. As usual in physics, it gets really interesting when the theorem is violated: answers to the origin of mass and the matter-antimatter asymmetry problems emerge when Noether's theorem is violated. Two things should bother you about N...
The LHC: or how the world's largest experiment can investigate matter's smallest constituents. Public lecture on 21 June 2007 at The Royal Society, London. Go here if you want to see the lecture with slides: http://royalsociety.tv/rsPlayer.aspx?presentationid=183 By Dr. Tara Shears, Royal Society University Research Fellow, University of Liverpool. Deep beneath the Swiss countryside, final touches are being made to the world's largest piece of scientific equipment the Large Hadron Collider (or LHC for short). The LHC is the most powerful particle accelerator ever built. It is capable of recreating the very energetic conditions last seen in the universe a billionth of a second after the Big Bang, and allows particle physicists to study the fundamental ingredients of matter that the univ...