Cross section and transverse single-spin asymmetry of η mesons in p↑+ p collisions at √s=200 GeV at forward rapidity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00522681" target="_blank" >RIV/68378271:_____/14:00522681 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/physrevd.90.072008" target="_blank" >https://doi.org/10.1103/physrevd.90.072008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.90.072008" target="_blank" >10.1103/PhysRevD.90.072008</a>
Alternative languages
Result language
angličtina
Original language name
Cross section and transverse single-spin asymmetry of η mesons in p↑+ p collisions at √s=200 GeV at forward rapidity
Original language description
We present a measurement of the cross section and transverse single-spin asymmetry (AN) for η mesons at large pseudorapidity from s=200 GeV p↑+p collisions. The measured cross section for 0.5<pT<5.0 GeV/c and 3.0<|η|<3.8 is well described by a next-to-leading-order perturbative-quantum-chromodynamics calculation. The asymmetries AN have been measured as a function of Feynman-x (xF) from 0.2<|xF|<0.7, as well as transverse momentum (pT) from 1.0<pT<4.5 GeV/c. The asymmetry averaged over positive xF is ⟨AN⟩=0.061±0.014. The results are consistent with prior transverse single-spin measurements of forward η and π0 mesons at various energies in overlapping xF ranges. Comparison of different particle species can help to determine the origin of the large observed asymmetries in p↑+p collisions.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
2014
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
90
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
1-15
UT code for WoS article
000344022100001
EID of the result in the Scopus database
2-s2.0-84908239582