Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F17%3A00480042" target="_blank" >RIV/68081731:_____/17:00480042 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24510/17:00005285 RIV/00216208:11320/17:10369343

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.physletb.2017.04.042" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2017.04.042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2017.04.042" target="_blank" >10.1016/j.physletb.2017.04.042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS

Popis výsledku v původním jazyce

Eight proton transverse-spin-dependent azimuthal asymmetries are extracted in four regions of the photon virtuality Q(2) from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon nucleon scattering. These Q(2) regions correspond to the four regions of the di-muon mass root Q(2) used in the ongoing analyses of the COMPASS Drell-Yan measurements, which allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. In addition, for the azimuthal asymmetries induced by the Sivers transverse-momentum-dependent parton distribution function various two-dimensional kinematic dependences are presented. The integrated Sivers asymmetries are found to be positive with an accutacy that appears to be sufficient to test the sign change of the Sivers function predicted by Quantum Chromodynamics.

Název v anglickém jazyce

Sivers asymmetry extracted in SIDIS at the hard scales of the Drell-Yan process at COMPASS

Popis výsledku anglicky

Eight proton transverse-spin-dependent azimuthal asymmetries are extracted in four regions of the photon virtuality Q(2) from the COMPASS 2010 semi-inclusive hadron measurements in deep inelastic muon nucleon scattering. These Q(2) regions correspond to the four regions of the di-muon mass root Q(2) used in the ongoing analyses of the COMPASS Drell-Yan measurements, which allows for a future direct comparison of the nucleon transverse-momentum-dependent parton distribution functions extracted from these two alternative measurements. In addition, for the azimuthal asymmetries induced by the Sivers transverse-momentum-dependent parton distribution function various two-dimensional kinematic dependences are presented. The integrated Sivers asymmetries are found to be positive with an accutacy that appears to be sufficient to test the sign change of the Sivers function predicted by Quantum Chromodynamics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Physics Letters. B

ISSN

0370-2693

e-ISSN

—

Svazek periodika

770

Číslo periodika v rámci svazku

JUL 10

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

138-145

Kód UT WoS článku

000404196500018

EID výsledku v databázi Scopus

2-s2.0-85018780801