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WHAT DOES J/PSI PARTICLE MEAN IN ENGLISH?
The J/ψmeson is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark. Mesons formed by a bound state of a charm quark and a charm anti-quark are generally known as "charmonium". The J/ψ is the first excited state of charmonium. The J/ψ has a rest mass of 3.0969 GeV/c2, and a mean lifetime of 7.2×10−21 s. This lifetime was about a thousand times longer than expected. Its discovery was made independently by two research groups, one at the Stanford Linear Accelerator Center, headed by Burton Richter, and one at the Brookhaven National Laboratory, headed by Samuel Ting at MIT. They discovered they had actually found the same particle, and both announced their discoveries on 11 November 1974. The importance of this discovery is highlighted by the fact that the subsequent, rapid changes in high-energy physics at the time have become collectively known as the "November Revolution". Richter and Ting were rewarded for their shared discovery with the 1976 Nobel Prize in Physics.
The translations of J/psi particle from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «J/psi particle» in English.
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «J/psi particle».
FREQUENCY OF USE OF THE TERM «J/PSI PARTICLE» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «J/psi particle» during the past 500 years. Its implementation is based on analysing how often the term «J/psi particle» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about J/psi particle
10 ENGLISH BOOKS RELATING TO «J/PSI PARTICLE»
Discover the use of J/psi particle in the following bibliographical selection. Books relating to J/psi particle and brief extracts from same to provide context of its use in English literature.
It was into this environment that the J/psi particle, as it became known, was born.
The J/psi was more than twice as heavy as any other particle then known and
should have decayed in an instant. Quantum mechanics tells us that high
One example is the discovery in 1974 of the J/psi particle at the Brookhaven
National Laboratory, New York, and the Stanford Linear Accelerator Center (
SLAC) in California. The J/psi weighs a little more than three times the mass of
the proton ...
Physics "For their pioneering work in the discovery of a heavy elementary particle
of a new kind" Dr Robert Walgate On 11 November 1974 Samuel Ting, professor
of physics at the Massachusetts Institute of Technology, walked into the ...
The Particle Odyssey: A Journey to the Heart of Matter
9.2 This dramatic hundredfold increase in the number of hadrons produced in
electron–positron annihilations at a total energy of 3.1 GeV signalled the
production and decay of the J/psi particle in the Mark I detector at SPEAR.
emerging from ...
Frank Close, Michael Marten, Christine Sutton, 2004
Q is for Quantum: An Encyclopedia of Particle Physics
Josephson junctions can also be used to demonstrate quantum phenomena on a
large scale, with further potential practical applications (see SQUID). J/psi particle
A massive meson, with a mass of 3,097 MeV (more than three times as heavy ...
Mary Gribbin, 2000
The Britannica Guide to Particle Physics
The J/psi particle is a type of meson consisting of a charmed quark and a
charmed antiquark. It has a mass of 3.1 GeV/c2, which is about 3.5 times larger
than the mass of a proton. The particle was first detected in 1974 by two groups of
Erik Gregersen, 2011
Science and Dissent in Post-Mao China: The Politics of Knowledge
The particle is known in the international physics community by two alternative
names— the "psi particle" and the "J particle," and frequently as the "J/psi particle
." This is because it was discovered almost simultaneously in 1974 by two groups
H. Lyman Miller, 1996
Quantification in Science: The VNR Dictionary of Engineering ...
Referred to as the "fourth charmed quark," the J-psi particle derives its name from
the combination of "J," given it by Ting, and "psi," given it by Richter. Tomonaga,
Shin'ichiro. Born: March 31, 1906, Tokyo, Japan; died: July 8, 1979, Tokyo, ...
M. Melarango, 1991
An energy of 3-1 GeV, for example, corresponds to the mass of the J/psi particle
which consists of a charmed quark and anti- quark; at this energy electron-
positron collisions produce copious numbers of J/psi particles. This is reflected in
New York Times Almanac 2002
1974 J/psi particle Like the strange hyperons, the J/psi particle is a heavy particle
that appears at high energies. It also is produced by a different kind of quark, the
charm quark. The odd name J/psi comes from the particle having The New york ...
John Wright, 2003
9 NEWS ITEMS WHICH INCLUDE THE TERM «J/PSI PARTICLE»
Find out what the national and international press are talking about and how the term J/psi particle is used in the context of the following news items.
That Time The Feds Built A Deluxe Atom Cannon In Palo Alto
Later additions to the atom cannon led to the 1974 discovery of the J/psi particle, made up of a "charm quark" and an "anti-charm quark." A year ... «Popular Science, Dec 14»
Top 10 Things You Didn't Know about Brookhaven National …
... the charmed baryon, neutral and negative sigma baryons, the phi vector meson, the antiparticles Xi-minus and Xi-zero, and the J/psi particle, ... «Scientific Computing, Apr 14»
Has Dark Matter finally been Discovered?
... new physical phenomena," said AMS principal investigator Samuel Ting, Nobel Prize laureate and one of the discoverers of the J/Psi particle. «YouTube, Apr 13»
Prominent UW physicist describes Higgs search and discovery
Wu has a strong history of discovery, having been involved in the identification in the 1970s of the J/psi particle and the gluon, two particles that ... «University of Wisconsin-Madison, Sep 12»
What the Discovery of the Higgs Means for Scientists
In November 1974 there was the announcement of the J/psi particle. And one asked the same questions as today, starting with “What's the ... «Wired News, Jul 12»
New Endeavour for an MIT experiment
Ting shared the Nobel Prize in physics in 1976 with Burton Richter '52, PhD '56 for discovering the J/Psi particle, a heavy elementary particle. «MIT News, May 11»
Rare particle decays could indicate presence of new physics
After being created in the wake of a proton-proton collision, Bs mesons can decay into a J/psi particle (a charm quark bound to a charm ... «Symmetry magazine, Mar 11»
Gerson Goldhaber, Particle Physicist, Is Dead at 86
... as part of a collaboration led by Burton Richter at the Stanford Linear Accelerator Center, Dr. Goldhaber helped to discover the “j/psi particle,” ... «New York Times, Jul 10»
When the charm quark did turn up, it was as a constituent of the J/psi particle, whose discovery in 1974 finally convinced physicists that quarks ... «Symmetry magazine, May 09»
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