Measurement of the inclusive isolated prompt photons cross section in collisions at with the ATLAS detector using

Georges Aad,Tatevik Abajyan,Brad Abbott, Jalal Abdallah,S Abdel Khalek,AA Abdelalim,O Abdinov,R Aben,B Abi,M Abolins, OS AbouZeid, H Abramowicz, H Abreu, Y Abulaiti,BS Acharya,L Adamczyk,DL Adams, TN Addy, J Adelman, S Adomeit,T Adye, S Aefsky,T Agatonovic-Jovin, JA Aguilar-Saavedra, M Agustoni,SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli,TPA Åkesson, G Akimoto,AV Akimov,MA Alam,J Albert, S Albrand,MJ Alconada Verzini, M Aleksa, IN Aleksandrov, F Alessandria,C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob,M Aliev,G Alimonti,J Alison, BMM Allbrooke, LJ Allison, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon,A Alonso, F Alonso, A Altheimer,B Alvarez Gonzalez,MG Alviggi, K Amako,Y Amaral Coutinho,C Amelung,VV Ammosov, SP Amor Dos Santos,A Amorim,S Amoroso, N Amram,C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders,KJ Anderson, A Andreazza, V Andrei,XS Anduaga,S Angelidakis,P Anger, A Angerami, F Anghinolfi,AV Anisenkov, N Anjos,A Annovi, A Antonaki,M Antonelli,A Antonov,J Antos, F Anulli,M Aoki,L Aperio Bella, R Apolle,G Arabidze, I Aracena,Y Arai, ATH Arce, S Arfaoui,JF Arguin, S Argyropoulos,E Arik,M Arik, AJ Armbruster, O Arnaez,V Arnal, A Artamonov, G Artoni,D Arutinov, S Asai, N Asbah, S Ask, B Åsman,L Asquith,K Assamagan, R Astalos, A Astbury,M Atkinson, B Auerbach, E Auge, K Augsten, M Aurousseau, G Avolio, D Axen, G Azuelos, Y Azuma,MA Baak, C Bacci,AM Bach, H Bachacou,K Bachas,M Backes,M Backhaus,J Backus Mayes, E Badescu,P Bagiacchi, P Bagnaia,Y Bai,DC Bailey, T Bain, JT Baines,OK Baker,S Baker, P Balek, F Balli, E Banas,P Banerjee,Sw Banerjee, D Banfi, A Bangert,V Bansal

Physical Review D（2014）

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摘要

A measurement of the cross section for the production of isolated prompt photons in p p collisions at a center-of-mass energy s= 7 TeV is presented. The results are based on an integrated luminosity of 4.6 fb− 1 collected with the ATLAS detector at the LHC. The cross section is measured as a function of photon pseudorapidity η γ and transverse energy E T γ in the kinematic range 100≤ E T γ< 1000 GeV and in the regions| η γ|< 1.37 and 1.52≤| η γ|< 2.37. The results are compared to leading-order parton-shower Monte Carlo models and next-to-leading-order perturbative QCD calculations. Next-to-leading-order perturbative QCD calculations agree well with the measured cross sections as a function of E T γ and η γ.

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