“V particle”的意思、由来-开放百科全书

词条

V particle

释义

References

In particle physics, V was a generic name for heavy, unstable subatomic particles that decay into a pair of particles, thereby producing a characteristic letter V in a bubble chamber or other particle detector. Such particles were first detected in cosmic ray interactions in the atmosphere in the late 1940s ^[1] and were first produced using the Cosmotron particle accelerator at Brookhaven National Laboratory in the 1950s.^[2] Since all such particles have now been identified and given specific names, such as K meson or Sigma baryon, this term has fallen into disuse.

V⁰ is still used on occasion to refer generally to neutral particles that may confuse the B-tagging algorithms in a modern particle detector, as is used in Section 7 of

[https://cds.cern.ch/record/1369219/files/ATLAS-CONF-2011-102.pdf this ATLAS conference note].

References

1. ^{{cite journal|last=G.D.Rochester|first=C.C.Butler|title=Evidence for the Existence of New Unstable Elementary Particles|journal=Nature|volume=160|issue=4077|page=855|date=1947|bibcode=1947Natur.160..855R|doi=10.1038/160855a0}}
2. ^{{cite book|last=Pais|first=Abraham|title=Inward Bound|publisher=Oxford University Press|page=21|date=1986}}

{{cite thesis

|last1=Alford |first1=W. L.
|date=1953
|title=The Mean Lifetime of V-Particles
|url=http://thesis.library.caltech.edu/1429/1/Alford_wl_1953.pdf
|publisher=California Institute of Technology
}}

{{cite thesis

|last1=Shelton |first1=F. H.
|date=1953
|title=V-Particle Production
|url=http://thesis.library.caltech.edu/1698/1/Shelton_fh_1953.pdf
|publisher=California Institute of Technology
}}{{DEFAULTSORT:V Particle}}{{particle-stub}}

1 : Subatomic particles

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