Measurement of the cross section for inclusive isolated-photon production in $pp$ collisions at $\sqrt s=13$ TeV using the ATLAS detector

Inclusive isolated-photon production in $pp$ collisions at a centre-of-mass energy of 13 TeV is studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 3.2 fb$^{-1}$. The cross section is measured as a function of the photon transverse energy above 125 GeV in dif...

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Published in:Physics letters. B 2017-07, Vol.770, p.473-493
Main Authors: Aaboud, M., Berger, N., Burger, A.M., Delmastro, M., Di Ciaccio, L., Elles, S., Grevtsov, K., Guillemin, T., Hryn’ova, T., Jézéquel, S., Koletsou, I., Lafaye, R., Lévêque, Jérémy, Mastrandea, P., Sauvan, E., Smart, B.H., Todorova-Nova, S., Vallier, A., Wingerter-Seez, I., Yatsenko, E., Aad, G., Alstaty, M., Barbero, M., Calandri, A., Calvet, T.P., Corga, K. de Vasconcelos, Coadou, Y., Diaconu, C., Djama, F., Ellajosyula, V., Feligioni, L., Hadef, A., Hallewell, G.D., Hubaut, F., Kahn, S.J., Knoops, E. B. F. G., Kukla, R., Le Guirriec, E., Liu, K., Madaffari, D., Monnier, E., Muanza, S., Nagy, E., Pralavorio, P., Rodina, Y., Rozanov, A., Talby, M., Theveneaux-Pelzer, T., Ticse Torres, R.E., Tisserant, S., Toth, J., Touchard, F., Vacavant, L., Wolff, R., Berlendis, S., Camincher, C., Collot, J., Crépé-Renaudin, S., Delsart, P.A., Gabaldon, C., Genest, M.H., Gradin, P.O.J., Hostachy, J.Y., Ledroit-Guillon, F., Lleres, A., Lucotte, A., Malek, F., Meideck, T., Petit, E., Stark, J., Trocmé, B., Boumediene, D., Busato, E., Calvet, D., Calvet, S., Chomont, A.R., Donini, J., Ganguly, S., Gris, Ph, Madar, R., Marjanovic, M., Pallin, D., Romano Saez, S.M., Santoni, C., Vazeille, F.
Format: Article
Language:English
Subjects:
High Energy Physics - Experiment
Physics
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Summary:Inclusive isolated-photon production in $pp$ collisions at a centre-of-mass energy of 13 TeV is studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 3.2 fb$^{-1}$. The cross section is measured as a function of the photon transverse energy above 125 GeV in different regions of photon pseudorapidity. Next-to-leading-order perturbative QCD and Monte Carlo event-generator predictions are compared to the cross-section measurements and provide an adequate description of the data.
ISSN:0370-2693
DOI:10.1016/j.physletb.2017.04.072