Measurement of electrons from semileptonic heavy-flavour hadron decays at midrapidity in pp and Pb-Pb collisions at √sNN=5.02 TeV

Citations

WEB OF SCIENCE

8
Citations

SCOPUS

49

초록

The differential invariant yield as a function of transverse momentum (p(T)) of electrons from semileptonic heavy-flavour hadron decays was measured at midrapidity in central (0-10%), semi-central (30-50%) and peripheral (60-80%) lead-lead (Pb- Pb) collisions at root s(NN) = 5.02 TeV in the p(T) intervals 0.5-26GeV/c( 0-10% and 30-50%) and 0.5-10 GeV/c (60-80%). The production cross section in proton-proton (pp) collisions at root s = 5.02 TeV was measured as well in 0.5 < pT< 10GeV/c and it lies close to the upper band of perturbative QCD calculation uncertainties up to p(T) = 5 GeV/c and close to the mean value for larger p(T). The modification of the electron yield with respect to what is expected for an incoherent superposition of nucleon-nucleon collisions is evaluated by measuring the nuclear modification factor R-AA. The measurement of the R-AA in different centrality classes allows in-medium energy loss of charm and beauty quarks to be investigated. The R-AA shows a suppression with respect to unity at intermediate p(T), which increases while moving towards more central collisions. Moreover, the measured R-AA is sensitive to the modification of the parton distribution functions (PDF) in nuclei, like nuclear shadowing, which causes a suppression of the heavy-quark production at low p(T) in heavy-ion collisions at LHC. (c) 2020 Conseil Europeen pour la Recherche Nucleaire. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

키워드

RADIATIVE ENERGY-LOSSION COLLISIONSSUPPRESSION
제목
Measurement of electrons from semileptonic heavy-flavour hadron decays at midrapidity in pp and Pb-Pb collisions at √sNN=5.02 TeV
저자
Acharya, S.Adamova, D.Adhya, S. P.Adler, A.Adolfsson, J.Aggarwal, M. M.Rinella, G. AglieriAgnello, M.Agrawal, N.Ahammed, Z.Ahmad, S.Ahn, S. U.Akindinov, A.Al-Turany, M.Alam, S. N.Albuquerque, D. S. D.Aleksandrov, D.Alessandro, B.Alfanda, H. M.Alfaro Molina, R.Ali, B.Ali, Y.Alici, A.Alkin, A.Alme, J.Alt, T.Altenkamper, L.Altsybeev, IAnaam, M. N.Andrei, C.Andreou, D.Andrews, H. A.Andronic, A.Angeletti, M.Anguelov, VAnson, C.Anticic, T.Antinori, F.Antonioli, P.Anwar, R.Apadula, N.Aphecetche, L.Appelshaeuser, H.Arcelli, S.Arnaldi, R.Arratia, M.Arsene, I. C.Arslandok, M.Augustinus, A.Averbeck, R.Aziz, S.Azmi, M. D.Badala, A.Baek, Y. W.Bagnasco, S.Bai, X.Bailhache, R.Bala, R.Baldisseri, A.Ball, M.Balouza, S.Baral, R. C.Barbera, R.Barioglio, L.Barnafoldi, G. G.Barnby, L. S.Barret, VBartalini, P.Barth, K.Bartsch, E.Baruffaldi, F.Bastid, N.Basu, S.Batigne, G.Batyunya, B.Batzing, P. C.Bauri, D.Bazo Alba, J. L.Bearden, I. G.Bedda, C.Behera, N. K.Belikov, IBellini, F.Bellwied, R.Belyaev, VBencedi, G.Beole, S.Bercuci, A.Berdnikov, Y.Berenyi, D.Bertens, R. A.Berzano, D.Besoiu, M. G.Betev, L.Bhasin, A.Bhat, I. R.Bhat, M. A.Bhatt, H.Bhattacharjee, B.Bianchi, A.Bianchi, L.Bianchi, N.Bielcik, J.Bielcikova, J.Bilandzic, A.Biro, G.Biswas, R.Biswas, S.Blair, J. T.Blau, D.Blume, C.Boca, G.Bock, F.Bogdanov, A.Boldizsar, L.Bolozdynya, A.Bombara, M.Bonomi, G.Borel, H.Borissov, A.Borri, M.Bossi, H.Botta, E.Bratrud, L.Braun-Munzinger, P.Bregant, M.Broker, T. A.Broz, M.Brucken, E. J.Bruna, E.Bruno, G. E.Buckland, M. D.Budnikov, D.Buesching, H.Bufalino, S.Bugnon, O.Buhler, P.Buncic, P.Buthelezi, Z.Butt, J. B.Buxton, J. T.Bysiak, S. A.Caffarri, D.Caliva, A.Calvo Villar, E.Camacho, R. S.Camerini, P.Capon, A. A.Carnesecchi, F.Castellanos, J. CastilloCastro, A. J.Casula, E. A. R.Catalano, F.Sanchez, C. CeballosChakraborty, P.Chandra, S.Chang, B.Chang, W.Chapeland, S.Chartier, M.Chattopadhyay, S.Chauvin, A.Cheshkov, C.Cheynis, B.Barroso, V. ChibanteChinellato, D. D.Cho, S.Chochula, P.Chowdhury, T.Christakoglou, P.Christensen, C. H.Christiansen, P.Chujo, T.Cicalo, C.Cifarelli, L.Cindolo, F.Cleymans, J.Colamaria, F.Colella, D.Collu, A.Colocci, M.Concas, M.Balbastre, G. Conesadel Valle, Z. ConesaContin, G.Contreras, J. G.Cormier, T. M.Morales, Y. CorralesCortese, P.Cosentino, M. R.Costa, F.Costanza, S.Crkovska, J.Crochet, P.Cuautle, E.Cunqueiro, L.Dabrowski, D.Dahms, T.Dainese, A.Damas, F. P. A.Dani, S.Danisch, M. C.Danu, A.Das, D.Das, IDas, P.Das, S.Dash, A.Dash, S.Dashi, A.De, S.De Caro, A.de Cataldo, G.de Conti, C.de Cuveland, J.De Falco, A.De Gruttola, D.De Marco, N.De Pasquale, S.De Souza, R. D.Deb, S.Degenhardt, H. F.Deja, K. R.Deloff, A.Delsanto, S.Devetak, D.Dhankher, P.Di Bari, D.Di Mauro, A.Diaz, R. A.Dietel, T.Dillenseger, P.Ding, Y.Divia, R.Djuvsland, O.Dmitrieva, U.Dobrin, A.Doenigus, B.Dordic, O.Dubey, A. K.Dubla, A.Dudi, S.Dukhishyam, M.Dupieux, P.Ehlers, R. J.Elia, D.Engel, H.Epple, E.Erazmus, B.Erhardt, F.Erokhin, A.Ersdal, M. R.Espagnon, B.Eulisse, G.Eum, J.Evans, D.Evdokimov, S.Fabbietti, L.Faggin, M.Faivre, J.Fantoni, A.Fasel, M.Fecchio, P.Feliciello, A.Feofilov, G.Fernandez Tellez, A.Ferrero, A.Ferretti, A.Festanti, A.Feuillard, V. J. G.Figiel, J.Filchagin, S.Finogeev, D.Fionda, F. M.Fiorenza, G.Flor, F.Foertsch, S.Foka, P.Fokin, S.Fragiacomo, E.Frankenfeld, U.Fronze, G. G.Fuchs, U.Furget, C.Furs, A.Girard, M. FuscoGaardhoje, J. J.Gagliardi, M.Gago, A. M.Gal, A.Galvan, C. D.Ganoti, P.Garabatos, C.Garcia-Solis, E.Garg, K.Gargiulo, C.Garibli, A.Garner, K.Gasik, P.Gauger, E. F.Ducati, M. B. GayGermain, M.Ghosh, J.Ghosh, P.Ghosh, S. K.Gianotti, P.Giubellino, P.Giubilato, P.Glaessel, P.Gomez Coral, D. M.Ramirez, A. GomezGonzalez, VGonzalez-Zamora, P.Gorbunov, S.Gorlich, L.Gotovac, S.Grabski, VGraczykowski, L. K.Graham, K. L.Greiner, L.Grelli, A.Grigoras, C.Grigoriev, VGrigoryan, A.Grigoryan, S.Groettvik, O. S.Gronefeld, J. M.Grosa, F.Grosse-Oetringhaus, J. F.Grosso, R.Guernane, R.Guerzoni, B.Guittiere, M.Gulbrandsen, K.Gunji, T.Gupta, A.Gupta, R.Guzman, I. B.Haake, R.Habib, M. K.Hadjidakis, C.Hamagaki, H.Hamar, G.Hamid, M.Hannigan, R.Haque, M. R.Harlenderova, A.Harris, J. W.Harton, A.Hasenbichler, J. A.Hassan, H.Hatzifotiadou, D.Hauer, P.Hayashi, S.Hechavarria, A. D. L. B.Heckel, S. T.Hellbr, E.Helstrup, H.Herghelegiu, A.Hernandez, E. G.Herrera Corral, G.Herrmann, F.Hetland, K. F.Hilden, T. E.Hillemanns, H.Hills, C.Hippolyte, B.Hohlweger, B.Horak, D.Hornung, S.Hosokawa, R.Hristov, P.Huang, C.Hughes, C.Huhn, P.Humanic, T. J.Hushnud, H.Husova, L. A.Hussain, N.Hussain, S. A.Hussain, T.Hutter, D.Hwang, D. S.Iddon, J. P.Ilkaev, R.Inaba, M.Ippolitov, M.Islam, M. S.Ivanov, M.Ivanov, VIzucheev, VJacak, B.Jacazio, N.Jacobs, P. M.Jadhav, M. B.Jadlovska, S.Jadlovsky, J.Jaelani, S.Jahnke, C.Jakubowska, M. J.Janik, M. A.Jercic, M.Jevons, O.Bustamante, R. T. JimenezJin, M.Jonas, F.Jones, P. G.Jung, J.Jung, M.Jusko, A.Kalinak, P.Kalweit, A.Kang, J. H.Kaplin, VKar, S.Uysal, A. KarasuKaravichev, O.Karavicheva, T.Karczmarczyk, P.Karpechev, E.Kebschull, U.Keidel, R.Keil, M.Ketzer, B.Khabanova, Z.Khan, A. M.Khan, S.Khan, S. A.Khanzadeev, A.Kharlov, Y.Khatun, A.Khuntia, A.Kileng, B.Kim, B.Kim, D.Kim, D. J.Kim, E. J.Kim, H.Kim, J.Kim, J. S.Kim, M.Kim, S.Kim, T.Kirsch, S.Kisel, IKiselev, S.Kisiel, A.Klay, J. L.Klein, C.Klein, J.Klein, S.Klein-Boesing, C.Klewin, S.Kluge, A.Knichel, M. L.Knospe, A. G.Kobdaj, C.Koehler, M. K.Kollegger, T.Kondratyev, A.Kondratyeva, N.Kondratyuk, E.Konopka, P. J.Koska, L.Kovalenko, O.Kovalenko, VKowalski, M.Kralik, IKravcakova, A.Kreis, L.Krivda, M.Krizek, F.Gajdosova, K. KrizkovaKrueger, M.Kryshen, E.Krzewicki, M.Kubera, A. M.Kucera, VKuhn, C.Kuijer, P. G.Kumar, L.Kumar, S.Kundu, S.Kurashvili, P.Kurepin, A.Kurepin, A. B.Kuryakin, A.Kushpil, S.Kvapil, J.Kweon, M. J.Kwon, J. Y.Kwon, Y.La Pointe, S. L.La Rocca, P.Lai, Y. S.Langoy, R.Lapidus, K.Lardeux, A.Larionov, P.Laudi, E.Lavicka, R.Lazareva, T.Lea, R.Leardini, L.Lee, S.Lehas, F.Lehner, S.Lehrbach, J.Lemmon, R. C.Leon Monzon, ILesser, E. D.Lettrich, M.Levai, P.Li, X.Li, X. L.Lien, J.Lietava, R.Lim, B.Lindal, S.Lindenstruth, VLindsay, S. W.Lippmann, C.Lisa, M. A.Litichevskyi, VLiu, A.Liu, S.Llope, W. J.Lofnes, I. M.Loginov, VLoizides, C.Loncar, P.Lopez, X.Torres, E. LopezLuettig, P.Luhder, J. R.Lunardon, M.Luparello, G.Lupi, M.Maevskaya, A.Mager, M.Mahmood, S. M.Mahmoud, T.Maire, A.Majka, R. D.Malaev, M.Malik, Q. W.Malinina, L.Mal'Kevich, D.Malzacher, P.Mamonov, A.Mandaglio, G.Manko, VManso, F.Manzari, VMao, Y.Marchisone, M.Mares, J.Margagliotti, G., VMargotti, A.Margutti, J.Marin, A.Markert, C.Marquard, M.Martin, N. A.Martinengo, P.Martinez, J. L.Martinez, M., IGarcia, G. MartinezPedreira, M. MartinezMasciocchi, S.Masera, M.Masoni, A.Massacrier, L.Masson, E.Mastroserio, A.Mathis, A. M.Matonoha, O.Matuoka, P. F. T.Matyja, A.Mayer, C.Mazzilli, M.Mazzoni, M. A.Mechler, A. F.Meddi, F.Melikyan, Y.Menchaca-Rocha, A.Meninno, E.Meres, M.Mhlanga, S.Miake, Y.Micheletti, L.Mieskolainen, M. M.Mihaylov, D. L.Mikhaylov, K.Mischke, A.Mishra, A. N.Miskowiec, D.Mitu, C. M.Modak, A.Mohammadi, N.Mohanty, A. P.Mohanty, B.Khan, M. MohisinMondal, M.Mondal, M. M.Mordasini, C.De Godoy, D. A. MoreiraMoreno, L. A. P.Moretto, S.Morreale, A.Morsch, A.Mrnjavac, T.Muccifora, VMudnic, E.Muehlheim, D.Muhuri, S.Mulligan, J. D.Munhoz, M. G.Muenning, K.Munzer, R. H.Murakami, H.Murray, S.Musa, L.Musinsky, J.Myers, C. J.Myrcha, J. W.Naik, B.Nair, R.Nandi, B. K.Nania, R.Nappi, E.Naru, M. U.Nassirpour, A. F.Natal da Luz, H.Nattrass, C.Nayak, R.Nayak, T. K.Nazarenko, S.De Oliveira, R. A. NegraoNellen, L.Nesbo, S., VNeskovic, G.Nesterov, D.Nielsen, B. S.Nikolaev, S.Nikulin, S.Nikulin, VNoferini, F.Nomokonov, P.Nooren, G.Norman, J.Novitzky, N.Nowakowski, P.Nyanin, A.Nystrand, J.Ogino, M.Ohlson, A.Oleniacz, J.Oliveira Da Silva, A. C.Oliver, M. H.Oppedisano, C.Orava, R.Velasquez, A. OrtizOskarsson, A.Otwinowski, J.Oyama, K.Pachmayer, Y.Pacik, VPagano, D.Paic, G.Palni, P.Pan, J.Pandey, A. K.Panebianco, S.Papikyan, VPareek, P.Park, J.Parkkila, J. E.Parmar, S.Passfeld, A.Pathak, S. P.Patra, R. N.Paul, B.Pei, H.Peitzmann, T.Peng, X.Pereira, L. G.Da Costa, H. PereiraPeresunko, D.Perez, G. M.Lezama, E. PerezPeskov, VPestov, Y.Petracek, VPetrovici, M.Pezzi, R. P.Piano, S.Pikna, M.Pillot, P.Pimentel, L. O. D. L.Pinazza, O.Pinsky, L.Pinto, C.Pisano, S.Piyarathna, D. B.Posko, M.Planinic, M.Pliquett, F.Pluta, J.Pochybova, S.Poghosyan, M. G.Polichtchouk, B.Poljak, N.Poonsawat, W.Pop, A.Poppenborg, H.Porteboeuf-Houssais, S.Pozdniakov, VPrasad, S. K.Preghenella, R.Prino, F.Pruneau, C. A.Pshenichnov, IPuccio, M.Punin, VPuranapanda, K.Putschke, J.Quishpe, R. E.Ragoni, S.Raha, S.Rajput, S.Rak, J.Rakotozafindrabe, A.Ramello, L.Rami, F.Raniwala, R.Raniwala, S.Rasanen, S. S.Rascanu, B. T.Rath, R.Ratza, VRavasenga, IRead, K. F.Redlich, K.Rehman, A.Reichelt, P.Reidt, F.Ren, X.Renfordt, R.Reshetin, A.Revol, J-PReygers, K.Riabov, VRichert, T.Richter, M.Riedler, P.Riegler, W.Riggi, F.Ristea, C.Rode, S. P.Rodriguez Cahuantzi, M.Roed, K.Rogalev, R.Rogochaya, E.Rohr, D.Rohrich, D.Rokita, P. S.Ronchetti, F.Rosas, E. D.Roslon, K.Rosnet, P.Rossi, A.Rotondi, A.Roukoutakis, F.Roy, A.Roy, P.Rueda, O., VRui, R.Rumyantsev, B.Rustamov, A.Ryabinkin, E.Ryabov, Y.Rybicki, A.Rytkonen, H.Sadhu, S.Sadovsky, S.Safarik, K.Saha, S. K.Sahoo, B.Sahoo, P.Sahoo, R.Sahoo, S.Sahu, P. K.Saini, J.Sakai, S.Sambyal, S.Samsonov, VSanchez, F. R.Sandoval, A.Sarkar, A.Sarkar, D.Sarkar, N.Sarma, P.Sarti, V. M.Sas, M. H. P.Scapparone, E.Schaefer, B.Schambach, J.Scheid, H. S.Schiaua, C.Schicker, R.Schmah, A.Schmidt, C.Schmidt, H. R.Schmidt, M. O.Schmidt, M.Schmidt, N., VSchmier, A. R.Schukraft, J.Schutz, Y.Schwarz, K.Schweda, K.Scioli, G.Scomparin, E.Sefcik, M.Seger, J. E.Sekiguchi, Y.Sekihata, D.Selyuzhenkov, ISenyukov, S.Serebryakov, D.Serradilla, E.Sett, P.Sevcenco, A.Shabanov, A.Shabetai, A.Shahoyan, R.Shaikh, W.Shangaraev, A.Sharma, A.Sharma, H.Sharma, M.Sharma, N.Sheikh, A., IShigaki, K.Shimomura, M.Shirinkin, S.Shou, Q.Sibiriak, Y.Siddhanta, S.Siemiarczuk, T.Silvermyr, D.Silvestre, C.Simatovic, G.Simonetti, G.Singh, R.Singh, V. K.Singhal, VSinha, T.Sitar, B.Sitta, M.Skaali, T. B.Slupecki, M.Smirnov, N.Snellings, R. J. M.Snellman, T. W.Sochan, J.Soncco, C.Song, J.Songmoolnak, A.Soramel, F.Sorensen, S.Sputowska, IStachel, J.Stan, IStankus, P.Steffanic, P. J.Stenlund, E.Stocco, D.Storetvedt, M. M.Strmen, P.Suaide, A. A. P.Sugitate, T.Suire, C.Suleymanov, M.Suljic, M.Sultanov, R.Sumbera, M.Sumowidagdo, S.Suzuki, K.Swain, S.Szabo, A.Szarka, ITabassam, U.Taillepied, G.Takahashi, J.Tambave, G. J.Tang, S.Tarhini, M.Tarzila, M. G.Tauro, A.Tejeda Munoz, G.Telesca, A.Terrevoli, C.Thakur, D.Thakur, S.Thomas, D.Thoresen, F.Tieulent, R.Tikhonov, A.Timmins, A. R.Toia, A.Topilskaya, N.Toppi, M.Torales-Acosta, F.Torres, S. R.Trifiro, A.Tripathy, S.Tripathy, T.Trogolo, S.Trombetta, G.Tropp, L.Trubnikov, VTrzaska, W. H.Trzcinski, T. P.Trzeciak, B. A.Tsuji, T.Tumkin, A.Turrisi, R.Tveter, T. S.Ullaland, K.Umaka, E. N.Uras, A.Usai, G. L.Utrobicic, A.Vala, M.Valle, N.Vallero, S.van der Kolk, N.van Doremalen, L. V. R.van Leeuwen, M.Vande Vyvre, P.Varga, D.Varga, Z.Varga-Kofarago, M.Vargas, A.Vargyas, M.Varma, R.Vasileiou, M.Vasiliev, A.Doce, O. VazquezVechernin, V.Veen, A. M.Vercellin, E.Vergara Limon, S.Vermunt, L.Vernet, R.Vertesi, R.Vicencio, M. G. D. L. C.Vickovic, L.Viinikainen, J.Vilakazi, Z.Baillie, O. VillalobosVillatoro Tello, A.Vino, G.Vinogradov, A.Virgili, T.Vislavicius, V.Vodopyanov, A.Volkel, B.Voelkl, M. A.Voloshin, K.Voloshin, S. A.Volpe, G.von Haller, B.Vorobyev, IVoscek, D.Vrlakova, J.Wagner, B.Weber, M.Weber, S. G.Wegrzynek, A.Weiser, D. F.Wenzel, S. C.Wessels, J. P.Widmann, E.Wiechula, J.Wikne, J.Wilk, G.Wilkinson, J.Willems, G. A.Willsher, E.Windelband, B.Witt, W. E.Wu, Y.Xu, R.Yalcin, S.Yamakawa, K.Yang, S.Yano, S.Yin, Z.Yokoyama, H.Yoo, I-KYoon, J. H.Yuan, S.Yuncu, A.Yurchenko, VZaccolo, VZaman, A.Zampolli, C.Zanoli, H. J. C.Zardoshti, N.Zarochentsev, A.Zavada, P.Zaviyalov, N.Zbroszczyk, H.Zhalov, M.Zhang, X.Zhang, Z.Zhao, C.Zherebchevskii, VZhigareva, N.Zhou, D.Zhou, Y.Zhou, Z.Zhu, J.Zhu, Y.Zichichi, A.Zimmermann, M. B.Zinovjev, G.Zurlo, N.
DOI
10.1016/j.physletb.2020.135377
발행일
2020-05-10
유형
Article
저널명
PHYSICS LETTERS B
804