Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at root s=200 GeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00217327" target="_blank" >RIV/68407700:21340/14:00217327 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/14:00428005

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevD.89.012001" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.89.012001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.89.012001" target="_blank" >10.1103/PhysRevD.89.012001</a>

Result language

angličtina

Original language name

Neutral pion cross section and spin asymmetries at intermediate pseudorapidity in polarized proton collisions at root s=200 GeV

Original language description

The differential cross section and spin asymmetries for neutral pions produced within the intermediate pseudorapidity range 0.8 < eta < 2.0 in polarized proton-proton collisions at root s = 200 GeV are presented. Neutral pions were detected using the endcap electromagnetic calorimeter in the STAR detector at RHIC. The cross section was measured over a transverse momentum range of 5 < p(T) < 16 GeV/c and is found to agree with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry A(LL) is measured in the same pseudorapidity range and spans a range of Bjorken-x down to x approximate to 0.01. The measured A(LL) is consistent with model predictions for varying degrees of gluon polarization. The parity-violating asymmetry A(L) is also measured and found to be consistent with zero. The transverse single-spin asymmetry A(N) is measured over a previously unexplored kinematic range in Feynman-x and p(T). Such measurements may aid our understanding of the

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

—

Project

<a href="/en/project/GA13-20841S" target="_blank" >GA13-20841S: Study of nuclear matter in ultra-relativistic heavy-ion collisions at RHIC</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Physical Review D

ISSN

1550-7998

e-ISSN

—

Volume of the periodical

89

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

1-11

UT code for WoS article

000331864800001

EID of the result in the Scopus database

—