Cross section and transverse single-spin asymmetry of η mesons in p↑+ p collisions at √s=200 GeV at forward rapidity

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Cross section and transverse single-spin asymmetry of η mesons in p↑+ p collisions at √s=200 GeV at forward rapidity

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Cross section and transverse single-spin asymmetry of η mesons in p↑+ p collisions at √s=200 GeV at forward rapidity

Popis výsledku anglicky

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

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

—

Svazek periodika

90

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

000344022100001

EID výsledku v databázi Scopus

2-s2.0-84908239582