Measurement of single-diffractive dijet production in proton-proton collisions at root s=8 TeV with the CMS and TOTEM experiments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10424081" target="_blank" >RIV/00216208:11320/20:10424081 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/20:00348316

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dKkG82Wg3q" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=dKkG82Wg3q</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-020-08562-y" target="_blank" >10.1140/epjc/s10052-020-08562-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of single-diffractive dijet production in proton-proton collisions at root s=8 TeV with the CMS and TOTEM experiments

Popis výsledku v původním jazyce

Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss xi and the four-momentum transfer squared t. Both processes pp -&gt; pX and pp -&gt; Xp, i.e. with the proton scattering to either side of the interaction point, are measured, where X includes at least two jets; the results of the two processes are averaged. The analyses are based on data collected simultaneously with the CMS and TOTEM detectors at the LHC in proton-proton collisions at root s = 8 TeV during a dedicated run with beta* = 90 m at low instantaneous luminosity and correspond to an integrated luminosity of 37.5 nb(-1). The single-diffractive dijet cross section sigma(pX)(jj), in the kinematic region xi &lt; 0.1, with at least two jets with transverse momentum p(T) &gt; 40GeV, and pseudorapidity vertical bar eta vertical bar &lt; 4.4, is 21.7 +/- 0.9(stat)(-3.3)(+3.0)(syst) +/- 0.9(lumi)nb. The ratio of the single-diffractive to inclusive dijet yields, normalised per unit of xi, is presented as a function of x, the longitudinal momentum fraction of the proton carried by the struck parton. The ratio in the kinematic region defined above, for x values in the range -2.9 &lt;= log(10) x &lt;= -1.6, is R = (sigma(pX)(jj)/Delta xi)/sigma(jj) = 0.025 +/- 0.001(stat) +/- 0.003(syst), where sigma(pX)(jj) and sigma(jj) are the single-diffractive and inclusive dijet cross sections, respectively. The results are compared with predictions from models of diffractive and nondiffractive interactions. Monte Carlo predictions based on the HERA diffractive parton distribution functions agree well with the data when corrected for the effect of soft rescattering between the spectator partons.

Název v anglickém jazyce

Measurement of single-diffractive dijet production in proton-proton collisions at root s=8 TeV with the CMS and TOTEM experiments

Popis výsledku anglicky

Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss xi and the four-momentum transfer squared t. Both processes pp -&gt; pX and pp -&gt; Xp, i.e. with the proton scattering to either side of the interaction point, are measured, where X includes at least two jets; the results of the two processes are averaged. The analyses are based on data collected simultaneously with the CMS and TOTEM detectors at the LHC in proton-proton collisions at root s = 8 TeV during a dedicated run with beta* = 90 m at low instantaneous luminosity and correspond to an integrated luminosity of 37.5 nb(-1). The single-diffractive dijet cross section sigma(pX)(jj), in the kinematic region xi &lt; 0.1, with at least two jets with transverse momentum p(T) &gt; 40GeV, and pseudorapidity vertical bar eta vertical bar &lt; 4.4, is 21.7 +/- 0.9(stat)(-3.3)(+3.0)(syst) +/- 0.9(lumi)nb. The ratio of the single-diffractive to inclusive dijet yields, normalised per unit of xi, is presented as a function of x, the longitudinal momentum fraction of the proton carried by the struck parton. The ratio in the kinematic region defined above, for x values in the range -2.9 &lt;= log(10) x &lt;= -1.6, is R = (sigma(pX)(jj)/Delta xi)/sigma(jj) = 0.025 +/- 0.001(stat) +/- 0.003(syst), where sigma(pX)(jj) and sigma(jj) are the single-diffractive and inclusive dijet cross sections, respectively. The results are compared with predictions from models of diffractive and nondiffractive interactions. Monte Carlo predictions based on the HERA diffractive parton distribution functions agree well with the data when corrected for the effect of soft rescattering between the spectator partons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LM2018104" target="_blank" >LM2018104: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

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

Rok uplatnění

2020

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

80

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

30

Strana od-do

1164

Kód UT WoS článku

000600230600003

EID výsledku v databázi Scopus

—