Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at root s=7 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10377243" target="_blank" >RIV/00216208:11320/18:10377243 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epjc/s10052-018-5691-6" target="_blank" >https://doi.org/10.1140/epjc/s10052-018-5691-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-018-5691-6" target="_blank" >10.1140/epjc/s10052-018-5691-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at root s=7 TeV

Popis výsledku v původním jazyce

Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at root s = 7 TeV. The jets were required to have transverse momentum p(T)(jet) &gt; 40 GeV and pseudorapidity 1.5 &lt; vertical bar eta(jet)vertical bar &lt; 4.7, and to have values of eta(jet) with opposite signs. The data used for this study were collected with the CMSdetector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb(-1). Events with no charged particles with p(T) &gt; 0.2GeV in the interval -1 &lt; eta &lt; 1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5-1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky-Fadin-Kuraev-Lipatov evolution equations, including different models of the non-perturbative gap survival probability.

Název v anglickém jazyce

Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at root s=7 TeV

Popis výsledku anglicky

Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at root s = 7 TeV. The jets were required to have transverse momentum p(T)(jet) &gt; 40 GeV and pseudorapidity 1.5 &lt; vertical bar eta(jet)vertical bar &lt; 4.7, and to have values of eta(jet) with opposite signs. The data used for this study were collected with the CMSdetector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb(-1). Events with no charged particles with p(T) &gt; 0.2GeV in the interval -1 &lt; eta &lt; 1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5-1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky-Fadin-Kuraev-Lipatov evolution equations, including different models of the non-perturbative gap survival probability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/LG14004" target="_blank" >LG14004: Spolupráce ČR s SÚJV Dubna v teoretické a jaderné fyzice a při využití jaderných metod v dalších oborech</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

27

Strana od-do

—

Kód UT WoS článku

000428179700004

EID výsledku v databázi Scopus

2-s2.0-85044372943