Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at √s =510 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00519183" target="_blank" >RIV/68378271:_____/17:00519183 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/physrevd.95.092003" target="_blank" >https://doi.org/10.1103/physrevd.95.092003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.95.092003" target="_blank" >10.1103/PhysRevD.95.092003</a>
Alternative languages
Result language
angličtina
Original language name
Angular decay coefficients of J /ψ mesons at forward rapidity from p+p collisions at √s =510 GeV
Original language description
We report the first measurement of the full angular distribution for inclusive J/ψ→μ+μ− decays in p+p collisions at s√=510 GeV. The measurements are made for J/ψ transverse momentum 2<pT<10 GeV/c and rapidity 1.2<y<2.2 in the Helicity, Collins-Soper, and Gottfried-Jackson reference frames. In all frames the polar coefficient λθ is strongly negative at low pT and becomes close to zero at high pT, while the azimuthal coefficient λϕ is close to zero at low pT, and becomes slightly negative at higher pT. The frame-independent coefficient λ~ is strongly negative at all pT in all frames. The data are compared to the theoretical predictions provided by nonrelativistic quantum chromodynamics models.n
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
2017
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 D
ISSN
2470-0010
e-ISSN
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Volume of the periodical
95
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
1-13
UT code for WoS article
000401231900001
EID of the result in the Scopus database
2-s2.0-85020079986