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Measurement of differential cross sections of isolated-photon plus heavy-flavour jet production in pp collisions at s=8 TeV using the ATLAS detector

  • Author(s): Aaboud, M;
  • Aad, G;
  • Abbott, B;
  • Abdinov, O;
  • Abeloos, B;
  • Abidi, SH;
  • AbouZeid, OS;
  • Abraham, NL;
  • Abramowicz, H;
  • Abreu, H;
  • Abreu, R;
  • Abulaiti, Y;
  • Acharya, BS;
  • Adachi, S;
  • Adamczyk, L;
  • Adelman, J;
  • Adersberger, M;
  • Adye, T;
  • Affolder, AA;
  • Afik, Y;
  • Agheorghiesei, C;
  • Aguilar-Saavedra, JA;
  • Ahlen, SP;
  • Ahmadov, F;
  • Aielli, G;
  • Akatsuka, S;
  • Akerstedt, H;
  • Åkesson, TPA;
  • Akilli, E;
  • Akimov, AV;
  • Alberghi, GL;
  • Albert, J;
  • Albicocco, P;
  • Alconada Verzini, MJ;
  • Alderweireldt, SC;
  • Aleksa, M;
  • Aleksandrov, IN;
  • Alexa, C;
  • Alexander, G;
  • Alexopoulos, T;
  • Alhroob, M;
  • Ali, B;
  • Aliev, M;
  • Alimonti, G;
  • Alison, J;
  • Alkire, SP;
  • Allbrooke, BMM;
  • Allen, BW;
  • Allport, PP;
  • Aloisio, A;
  • Alonso, A;
  • Alonso, F;
  • Alpigiani, C;
  • Alshehri, AA;
  • Alstaty, MI;
  • Alvarez Gonzalez, B;
  • Álvarez Piqueras, D;
  • Alviggi, MG;
  • Amadio, BT;
  • Amaral Coutinho, Y;
  • Amelung, C;
  • Amidei, D;
  • Amor Dos Santos, SP;
  • Amoroso, S;
  • Anastopoulos, C;
  • Ancu, LS;
  • Andari, N;
  • Andeen, T;
  • Anders, CF;
  • Anders, JK;
  • Anderson, KJ;
  • Andreazza, A;
  • Andrei, V;
  • Angelidakis, S;
  • Angelozzi, I;
  • Angerami, A;
  • Anisenkov, AV;
  • Anjos, N;
  • Annovi, A;
  • Antel, C;
  • Antonelli, M;
  • Antonov, A;
  • Antrim, DJ;
  • Anulli, F;
  • Aoki, M;
  • Aperio Bella, L;
  • Arabidze, G;
  • Arai, Y;
  • Araque, JP;
  • Araujo Ferraz, V;
  • Arce, ATH;
  • Ardell, RE;
  • Arduh, FA;
  • Arguin, JF;
  • Argyropoulos, S;
  • Arik, M;
  • Armbruster, AJ;
  • Armitage, LJ;
  • Arnaez, O;
  • Arnold, H
  • et al.

Published Web Location

https://doi.org/10.1016/j.physletb.2017.11.054
Abstract

This Letter presents the measurement of differential cross sections of isolated prompt photons produced in association with a b-jet or a c-jet. These final states provide sensitivity to the heavy-flavour content of the proton and aspects related to the modelling of heavy-flavour quarks in perturbative QCD. The measurement uses proton–proton collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the LHC in 2012 corresponding to an integrated luminosity of up to 20.2 fb−1. The differential cross sections are measured for each jet flavour with respect to the transverse energy of the leading photon in two photon pseudorapidity regions: |ηγ|<1.37 and 1.56<|ηγ|<2.37. The measurement covers photon transverse energies 25

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