Search for dark photons from neutral meson decays in p+p and d+Au collisions at √sNN=200 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00522403" target="_blank" >RIV/68378271:_____/15:00522403 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/physrevc.91.031901" target="_blank" >https://doi.org/10.1103/physrevc.91.031901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.91.031901" target="_blank" >10.1103/PhysRevC.91.031901</a>
Alternative languages
Result language
angličtina
Original language name
Search for dark photons from neutral meson decays in p+p and d+Au collisions at √sNN=200 GeV
Original language description
The standard model (SM) of particle physics is spectacularly successful, yet the measured value of the muon anomalous magnetic moment (g−2)μ deviates from SM calculations by 3.6σ. Several theoretical models attribute this to the existence of a “dark photon,” an additional U(1) gauge boson, which is weakly coupled to ordinary photons. The PHENIX experiment at the Relativistic Heavy Ion Collider has searched for a dark photon, U, in π0,η→γe+e− decays and obtained upper limits of O(2×10−6) on U-γ mixing at 90% C.L. for the mass range 30<mU<90 MeV/c2. Combined with other experimental limits, the remaining region in the U-γ mixing parameter space that can explain the (g−2)μ deviation from its SM value is nearly completely excluded at the 90% confidence level, with only a small region of 29<mU<32 MeV/c2 remaining.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C
ISSN
2469-9985
e-ISSN
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Volume of the periodical
91
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
20
Pages from-to
1-20
UT code for WoS article
000352021800001
EID of the result in the Scopus database
2-s2.0-84924385953