Measurement of prompt photon production in root s(NN)=8.16 TeV p Pb collisions with ATLAS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73596358" target="_blank" >RIV/61989592:15310/19:73596358 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/19:00339147 RIV/68407700:21340/19:00339147 RIV/68407700:21670/19:00339147 RIV/00216208:11320/19:10407661

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0370269319304885" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0370269319304885</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physletb.2019.07.031" target="_blank" >10.1016/j.physletb.2019.07.031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of prompt photon production in root s(NN)=8.16 TeV p Pb collisions with ATLAS

Popis výsledku v původním jazyce

The inclusive production rates of isolated, prompt photons in p Pb collisions at root s(NN) = 8.16 TeV are studied with the ATLAS detector at the Large Hadron Collider using a dataset with an integrated luminosity of 165 nb(-1) recorded in 2016. The cross-section and nuclear modification factor R-p pb are measured as a function of photon transverse energy from 20 GeV to 550 GeV and in three nucleon-nucleon centre-of-mass pseudorapidity regions, (-2.83, -2.02), (-1.84, 0.91), and (1.09, 1.90). The cross-section and R-p pb values are compared with the results of a next-to-leading-order perturbative QCD calculation, with and without nuclear parton distribution function modifications, and with expectations based on a model of the energy loss of partons prior to the hard scattering. The data disfavour a large amount of energy loss and provide new constraints on the parton densities in nuclei.

Název v anglickém jazyce

Measurement of prompt photon production in root s(NN)=8.16 TeV p Pb collisions with ATLAS

Popis výsledku anglicky

The inclusive production rates of isolated, prompt photons in p Pb collisions at root s(NN) = 8.16 TeV are studied with the ATLAS detector at the Large Hadron Collider using a dataset with an integrated luminosity of 165 nb(-1) recorded in 2016. The cross-section and nuclear modification factor R-p pb are measured as a function of photon transverse energy from 20 GeV to 550 GeV and in three nucleon-nucleon centre-of-mass pseudorapidity regions, (-2.83, -2.02), (-1.84, 0.91), and (1.09, 1.90). The cross-section and R-p pb values are compared with the results of a next-to-leading-order perturbative QCD calculation, with and without nuclear parton distribution function modifications, and with expectations based on a model of the energy loss of partons prior to the hard scattering. The data disfavour a large amount of energy loss and provide new constraints on the parton densities in nuclei.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

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

796

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

23

Strana od-do

230-252

Kód UT WoS článku

000483426200031

EID výsledku v databázi Scopus

2-s2.0-85069881218