Rapidity gap cross sections measured with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00389804" target="_blank" >RIV/68378271:_____/12:00389804 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/12:10128647

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epjc/s10052-012-1926-0" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-012-1926-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-012-1926-0" target="_blank" >10.1140/epjc/s10052-012-1926-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rapidity gap cross sections measured with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV

Popis výsledku v původním jazyce

Pseudorapidity gap distributions in pp collisions at sqrt(s) = 7 TeV are studied using a minimum bias data sample with an integrated luminosity of 7.1 inverse microbarns. Cross sections are measured differentially in terms of Delta eta F, the larger of the pseudorapidity regions extending to the limits of the ATLAS sensitivity, at eta = +/- 4.9, in which no final state particles are produced above a transverse momentum threshold p_T Cut. The measurements at larger gap sizes are dominated by contributions from the single diffractive dissociation process (pp -> Xp), enhanced by double dissociation (pp -> XY) where the invariant mass of the lighter of the two dissociation systems satisfies M_Y < 7 GeV. The large rapidity gap data are used to constrain thevalue of the pomeron intercept appropriate to triple Regge models of soft diffraction. The cross section integrated over all gap sizes is compared with other LHC inelastic cross section measurements.

Název v anglickém jazyce

Rapidity gap cross sections measured with the ATLAS detector in pp collisions at sqrt{s} = 7 TeV

Popis výsledku anglicky

Pseudorapidity gap distributions in pp collisions at sqrt(s) = 7 TeV are studied using a minimum bias data sample with an integrated luminosity of 7.1 inverse microbarns. Cross sections are measured differentially in terms of Delta eta F, the larger of the pseudorapidity regions extending to the limits of the ATLAS sensitivity, at eta = +/- 4.9, in which no final state particles are produced above a transverse momentum threshold p_T Cut. The measurements at larger gap sizes are dominated by contributions from the single diffractive dissociation process (pp -> Xp), enhanced by double dissociation (pp -> XY) where the invariant mass of the lighter of the two dissociation systems satisfies M_Y < 7 GeV. The large rapidity gap data are used to constrain thevalue of the pomeron intercept appropriate to triple Regge models of soft diffraction. The cross section integrated over all gap sizes is compared with other LHC inelastic cross section measurements.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

<a href="/cs/project/LA08032" target="_blank" >LA08032: Mezinárodní experiment ATLAS-CERN</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

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

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Svazek periodika

72

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

20

Strana od-do

1-20

Kód UT WoS článku

000302540000042

EID výsledku v databázi Scopus

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