Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at √s = 510 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00558721" target="_blank" >RIV/61389005:_____/22:00558721 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.105.092011" target="_blank" >https://doi.org/10.1103/PhysRevD.105.092011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.105.092011" target="_blank" >10.1103/PhysRevD.105.092011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at √s = 510 GeV

Popis výsledku v původním jazyce

We report measurements of the longitudinal double-spin asymmetry, A(LL), for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy root s = 510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements complement and improve the precision of previous STAR measurements at the same center-of-mass energy that probe the polarized gluon distribution function at partonic momentum fraction 0.015 less than or similar to x less than or similar to 0.25. The dijet asymmetries are separated into four jet-pair topologies, which provide further constraints on the x dependence of the polarized gluon distribution function. These measurements are in agreement with previous STAR measurements and with predictions from current next-to-leading-order global analyses. They provide more precise data at low dijet invariant mass that will better constrain the shape of the polarized gluon distribution function of the proton.

Název v anglickém jazyce

Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at √s = 510 GeV

Popis výsledku anglicky

We report measurements of the longitudinal double-spin asymmetry, A(LL), for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-of-mass energy root s = 510 GeV, using the high luminosity data sample collected by the STAR experiment in 2013. These measurements complement and improve the precision of previous STAR measurements at the same center-of-mass energy that probe the polarized gluon distribution function at partonic momentum fraction 0.015 less than or similar to x less than or similar to 0.25. The dijet asymmetries are separated into four jet-pair topologies, which provide further constraints on the x dependence of the polarized gluon distribution function. These measurements are in agreement with previous STAR measurements and with predictions from current next-to-leading-order global analyses. They provide more precise data at low dijet invariant mass that will better constrain the shape of the polarized gluon distribution function of the proton.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/LTT18002" target="_blank" >LTT18002: Studium nových vlastností jaderné hmoty v mezinárodním experimentu STAR</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

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

2470-0029

Svazek periodika

105

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

092011

Kód UT WoS článku

000810869200007

EID výsledku v databázi Scopus

2-s2.0-85131666865