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

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 perturbati...

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Hauptverfasser: Alberghi, Gian Luigi, Alconada Verzini, Maria Josefina, Alpigiani, Cristiano, Amidei, Dante, Arabidze, Giorgi, Asbah, Nedaa, Balek, Petr, Barberis, Dario, Bernlochner, Florian Urs, Bielski, Rafal, Bobrovnikov, Victor, Burghgrave, Blake, Cai, Huacheng, Carrillo-Montoya, German D, Cervelli, Alberto, Chelkov, Gueorgui, Chen, Chunhui, Chiu, Yu Him Justin, Collot, Johann, Czodrowski, Patrick, D'Auria, Saverio, Dallaire, Frederick, Dattagupta, Aparajita, Dehghanian, Nooshin, Escobar, Carlos, Farbin, Amir, Feng, Minyu, Gadomski, Szymon, Gentile, Simonetta, Ghasemi, Sara, Gibson, Stephen, Goblirsch-Kolb, Maximilian, Greenwood, Zeno Dixon, Gutierrez, Phillip, Harenberg, Torsten, Harrison, Paul Fraser, Hawkes, Christopher, Haywood, Stephen, Hodgson, Paul, Hryn'ova, Tetiana, Huth, John, Kanaya, Naoko, Karpov, Sergey, Klapdor-Kleingrothaus, Thorwald, Klitzner, Felix Fidelio, Kobayashi, Aine, Kobayashi, Dai, Kodys, Peter, Koi, Tatsumi, Kortner, Oliver, Kuday, Sinan, Li, Liang, Livan, Michele, Lu, Yun-Ju, Maeda, Junpei, Mc Fadden, Neil Christopher, Mellado Garcia, Bruce Rafael, Metcalfe, Jessica, Motohashi, Kazuki, Naumann, Thomas, Nilsson, Paul, Nisius, Richard, Nurse, Emily, Oberlack, Horst, Panagiotopoulou, Evgenia, Paolozzi, Lorenzo, Pasqualucci, Enrico, Przybycien, Mariusz, Qin, Yang, Radloff, Peter, Rebuzzi, Daniela, Reiss, Andreas, Ritsch, Elmar, Rousseau, David, Safai Tehrani, Francesco, Saimpert, Matthias, Sales De Bruin, Pedro Henrique, Schegelsky, Valery, Schumacher, Markus, Searcy, Jacob, Shan, Lianyou, Shojaii, Seyed Ruhollah, Skubic, Patrick, Soldevila, Urmila, Spagnolo, Stefania, Stucci, Stefania Antonia, Tackmann, Kerstin, Takashima, Ryuichi, Taylor, Aaron, Thomsen, Lotte Ansgaard, Tornambe, Peter, Urquijo, Phillip, Vandelli, Wainer, Vercesi, Valerio, Wenaus, Torre, Willocq, Stephane, Wozniak, Krzysztof, Zeitnitz, Christian, Zhang, Liqing, Zhao, Zhengguo
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Sprache:eng
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Zusammenfassung: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: $|\eta^\gamma|
ISSN:1873-2445
0370-2693
DOI:10.3204/pubdb-2018-00661