Attenzione: i dati modificati non sono ancora stati salvati. Per confermare inserimenti o cancellazioni di voci è necessario confermare con il tasto SALVA/INSERISCI in fondo alla pagina
CRIS Current Research Information System
Neutral pion and η meson invariant differential yields were measured in non-single diffractive p–Pb collisions at √sNN = 5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of π0 and η meson inclusive production are measured near mid-rapidity in a broad transverse momentum range of 0.3<20GeV/c and 0.7<20GeV/c, respectively. The measured η/ π0 ratio increases with pT and saturates for pT > 4 GeV / c at 0.483 ± 0. 015 stat± 0. 015 sys. A deviation from mT scaling is observed for pT< 2 GeV / c. The measured η/ π0 ratio is consistent with previous measurements from proton-nucleus and pp collisions over the full pT range. The measured η/ π0 ratio at high pT also agrees within uncertainties with measurements from nucleus–nucleus collisions. The π0 and η yields in p–Pb relative to the scaled pp interpolated reference, RpPb, are presented for 0.3 < pT< 20 GeV / c and 0.7 < pT< 20 GeV / c, respectively. The results are compared with theoretical model calculations. The values of RpPb are consistent with unity for transverse momenta above 2 GeV / c. These results support the interpretation that the suppressed yield of neutral mesons measured in Pb–Pb collisions at LHC energies is due to parton energy loss in the hot QCD medium.
Acharya, S., Adamová, D., Adolfsson, J., Aggarwal, M., Aglieri Rinella, G., Agnello, M., et al. (2018). Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(8), 1-25 [10.1140/epjc/s10052-018-6013-8].
Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV
Acharya, S.;Adamová, D.;Adolfsson, J.;Aggarwal, M. M.;Aglieri Rinella, G.;Agnello, M.;Agrawal, N.;Ahammed, Z.;Ahn, S. U.;Aiola, S.;Akindinov, A.;Al-Turany, M.;Alam, S. N.;Albuquerque, D. S. D.;Aleksandrov, D.;Alessandro, B.;Alfaro Molina, R.;Ali, Y.;Alici, A.;Alkin, A.;Alme, J.;Alt, T.;Altenkamper, L.;Altsybeev, I.;Andrei, C.;Andreou, D.;Andrews, H. A.;Andronic, A.;Angeletti, M.;Anguelov, V.;Anson, C.;Antičić, T.;Antinori, F.;Antonioli, P.;Apadula, N.;Aphecetche, L.;Appelshäuser, H.;Arcelli, S.;Arnaldi, R.;Arnold, O. W.;Arsene, I. C.;Arslandok, M.;Audurier, B.;Augustinus, A.;Averbeck, R.;Azmi, M. D.;Badalà, A.;Baek, Y. W.;Bagnasco, S.;Bailhache, R.;Bala, R.;Baldisseri, A.;Ball, M.;Baral, R. C.;Barbano, A. M.;Barbera, R.;Barile, F.;Barioglio, L.;Barnaföldi, G. G.;Barnby, L. S.;Barret, V.;Bartalini, P.;Barth, K.;Bartsch, E.;Bastid, N.;Basu, S.;Batigne, G.;Batyunya, B.;Batzing, P. C.;Bazo Alba, J. L.;Bearden, I. G.;Beck, H.;Bedda, C.;Behera, N. K.;Belikov, I.;Bellini, F.;Bello Martinez, H.;Bellwied, R.;Beltran, L. G. E.;Belyaev, V.;Bencedi, G.;Beole, S.;Bercuci, A.;Berdnikov, Y.;Berenyi, D.;Bertens, R. A.;Berzano, D.;Betev, L.;Bhaduri, P. P.;Bhasin, A.;Bhat, I. R.;Bhattacharjee, B.;Bhom, J.;Bianchi, A.;Bianchi, L.;Bianchi, N.;Bianchin, C.;Bielčík, J.;Bielčíková, J.;Bilandzic, A.;Biro, G.;Biswas, R.;Biswas, S.;Blair, J. T.;Blau, D.;Blume, C.;Boca, G.;Bock, F.;Bogdanov, A.;Boldizsár, L.;Bombara, M.;Bonomi, G.;Bonora, M.;Borel, H.;Borissov, A.;Borri, M.;Botta, E.;Bourjau, C.;Bratrud, L.;Braun-Munzinger, P.;Bregant, M.;Broker, T. A.;Broz, M.;Brucken, E. J.;Bruna, E.;Bruno, G. E.;Budnikov, D.;Buesching, H.;Bufalino, S.;Buhler, P.;Buncic, P.;Busch, O.;Buthelezi, Z.;Butt, J. B.;Buxton, J. T.;Cabala, J.;Caffarri, D.;Caines, H.;Caliva, A.;Calvo Villar, E.;Camacho, R. S.;Camerini, P.;Capon, A. A.;Carena, F.;Carena, W.;Carnesecchi, F.;Castillo Castellanos, J.;Castro, A. J.;Casula, E. A. R.;Ceballos Sanchez, C.;Chandra, S.;Chang, B.;Chang, W.;Chapeland, S.;Chartier, M.;Chattopadhyay, S.;Chattopadhyay, S.;Chauvin, A.;Cheshkov, C.;Cheynis, B.;Chibante Barroso, V.;Chinellato, D. D.;Cho, S.;Chochula, P.;Chojnacki, M.;Choudhury, S.;Chowdhury, T.;Christakoglou, P.;Christensen, C. H.;Christiansen, P.;Chujo, T.;Chung, S. U.;Cicalo, C.;Cifarelli, L.;Cindolo, F.;Cleymans, J.;Colamaria, F.;Colella, D.;Collu, A.;Colocci, M.;Concas, M.;Conesa Balbastre, G.;Conesa del Valle, Z.;Contreras, J. G.;Cormier, T. M.;Corrales Morales, Y.;Cortés Maldonado, I.;Cortese, P.;Cosentino, M. R.;Costa, F.;Costanza, S.;Crkovská, J.;Crochet, P.;Cuautle, E.;Cunqueiro, L.;Dahms, T.;Dainese, A.;Danisch, M. C.;Danu, A.;Das, D.;Das, I.;Das, S.;Dash, A.;Dash, S.;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.;Degenhardt, H. F.;Deisting, A.;Deloff, A.;Delsanto, S.;Deplano, C.;Dhankher, P.;Di Bari, D.;Di Mauro, A.;Di Nezza, P.;Di Ruzza, B.;Diaz, R. A.;Dietel, T.;Dillenseger, P.;Ding, Y.;Divià, R.;Djuvsland, Ø.;Dobrin, A.;Domenicis Gimenez, D.;Dönigus, B.;Dordic, O.;Doremalen, L. V. R.;Dubey, A. K.;Dubla, A.;Ducroux, L.;Dudi, S.;Duggal, A. K.;Dukhishyam, M.;Dupieux, P.;Ehlers, R. J.;Elia, D.;Endress, E.;Engel, H.;Epple, E.;Erazmus, B.;Erhardt, F.;Espagnon, B.;Eulisse, G.;Eum, J.;Evans, D.;Evdokimov, S.;Fabbietti, L.;Faggin, M.;Faivre, J.;Fantoni, A.;Fasel, M.;Feldkamp, L.;Feliciello, A.;Feofilov, G.;Fernández Téllez, A.;Ferretti, A.;Festanti, A.;Feuillard, V. J. G.;Figiel, J.;Figueredo, M. A. S.;Filchagin, S.;Finogeev, D.;Fionda, F. M.;Floris, M.;Foertsch, S.;Foka, P.;Fokin, S.;Fragiacomo, E.;Francescon, A.;Francisco, A.;Frankenfeld, U.;Fronze, G. G.;Fuchs, U.;Furget, C.;Furs, A.;Fusco Girard, M.;Gaardhøje, J. J.;Gagliardi, M.;Gago, A. M.;Gajdosova, K.;Gallio, M.;Galvan, C. D.;Ganoti, P.;Garabatos, C.;Garcia-Solis, E.;Garg, K.;Gargiulo, C.;Gasik, P.;Gauger, E. F.;Ducati, M. B. Gay;Germain, M.;Ghosh, J.;Ghosh, P.;Ghosh, S. K.;Gianotti, P.;Giubellino, P.;Giubilato, P.;Gladysz-Dziadus, E.;Glässel, P.;Goméz Coral, D. M.;Gomez Ramirez, A.;Gonzalez, A. S.;González-Zamora, P.;Gorbunov, S.;Görlich, L.;Gotovac, S.;Grabski, V.;Graczykowski, L. K.;Graham, K. L.;Greiner, L.;Grelli, A.;Grigoras, C.;Grigoriev, V.;Grigoryan, A.;Grigoryan, S.;Gronefeld, J. M.;Grosa, F.;Grosse-Oetringhaus, J. F.;Grosso, R.;Guber, F.;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.;Hamon, J. C.;Haque, M. R.;Harris, J. W.;Harton, A.;Hassan, H.;Hatzifotiadou, D.;Hayashi, S.;Heckel, S. T.;Hellbär, E.;Helstrup, H.;Herghelegiu, A.;Hernandez, E. G.;Herrera Corral, G.;Herrmann, F.;Hess, B. A.;Hetland, K. F.;Hillemanns, H.;Hills, C.;Hippolyte, B.;Hohlweger, B.;Horak, D.;Hornung, S.;Hosokawa, R.;Hristov, P.;Hughes, C.;Huhn, P.;Humanic, T. J.;Hushnud, H.;Hussain, N.;Hussain, T.;Hutter, D.;Hwang, D. S.;Iddon, J. P.;Iga Buitron, S. A.;Ilkaev, R.;Inaba, M.;Ippolitov, M.;Islam, M. S.;Ivanov, M.;Ivanov, V.;Izucheev, V.;Jacak, B.;Jacazio, N.;Jacobs, P. M.;Jadhav, M. B.;Jadlovska, S.;Jadlovsky, J.;Jaelani, S.;Jahnke, C.;Jakubowska, M. J.;Janik, M. A.;Jayarathna, P. H. S. Y.;Jena, C.;Jercic, M.;Jimenez Bustamante, R. T.;Jones, P. G.;Jusko, A.;Kalinak, P.;Kalweit, A.;Kang, J. H.;Kaplin, V.;Kar, S.;Karasu Uysal, A.;Karavichev, O.;Karavicheva, T.;Karayan, L.;Karczmarczyk, P.;Karpechev, E.;Kebschull, U.;Keidel, R.;Keijdener, D. L. D.;Keil, M.;Ketzer, B.;Khabanova, Z.;Khan, S.;Khan, S. A.;Khanzadeev, A.;Kharlov, Y.;Khatun, A.;Khuntia, A.;Kielbowicz, M. M.;Kileng, B.;Kim, B.;Kim, D.;Kim, D. J.;Kim, E. J.;Kim, H.;Kim, J. S.;Kim, J.;Kim, M.;Kim, S.;Kim, T.;Kirsch, S.;Kisel, I.;Kiselev, S.;Kisiel, A.;Kiss, G.;Klay, J. L.;Klein, C.;Klein, J.;Klein-Bösing, C.;Klewin, S.;Kluge, A.;Knichel, M. L.;Knospe, A. G.;Kobdaj, C.;Kofarago, M.;Köhler, M. K.;Kollegger, T.;Kondratiev, V.;Kondratyeva, N.;Kondratyuk, E.;Konevskikh, A.;Konyushikhin, M.;Kopcik, M.;Kouzinopoulos, C.;Kovalenko, O.;Kovalenko, V.;Kowalski, M.;Králik, I.;Kravčáková, A.;Kreis, L.;Krivda, M.;Krizek, F.;Kruger, M.;Kryshen, E.;Krzewicki, M.;Kubera, A. M.;Kučera, V.;Kuhn, C.;Kuijer, P. G.;Kumar, J.;Kumar, L.;Kumar, S.;Kundu, S.;Kurashvili, P.;Kurepin, A.;Kurepin, A. B.;Kuryakin, A.;Kushpil, S.;Kweon, M. J.;Kwon, Y.;La Pointe, S. L.;La Rocca, P.;Ladron de Guevara, P.;Lagana Fernandes, C.;Lai, Y. S.;Lakomov, I.;Langoy, R.;Lapidus, K.;Lara, C.;Lardeux, A.;Larionov, P.;Lattuca, A.;Laudi, E.;Lavicka, R.;Lea, R.;Leardini, L.;Lee, S.;Lehas, F.;Lehner, S.;Lehrbach, J.;Lemmon, R. C.;Leogrande, E.;León Monzón, I.;Lévai, P.;Li, X.;Li, X. L.;Lien, J.;Lietava, R.;Lim, B.;Lindal, S.;Lindenstruth, V.;Lindsay, S. W.;Lippmann, C.;Lisa, M. A.;Litichevskyi, V.;Liu, A.;Ljunggren, H. M.;Llope, W. J.;Lodato, D. F.;Loenne, P. I.;Loginov, V.;Loizides, C.;Loncar, P.;Lopez, X.;López Torres, E.;Lowe, A.;Luettig, P.;Luhder, J. R.;Lunardon, M.;Luparello, G.;Lupi, M.;Maevskaya, A.;Mager, M.;Mahmood, S. M.;Maire, A.;Majka, R. D.;Malaev, M.;Malinina, L.;Mal’Kevich, D.;Malzacher, P.;Mamonov, A.;Manko, V.;Manso, F.;Manzari, V.;Mao, Y.;Marchisone, M.;Mareš, J.;Margagliotti, G. V.;Margotti, A.;Margutti, J.;Marín, A.;Markert, C.;Marquard, M.;Martin, N. A.;Martinengo, P.;Martinez, J. A. L.;Martínez, M. I.;Martínez García, G.;Martinez Pedreira, M.;Masciocchi, S.;Masera, M.;Masoni, A.;Massacrier, L.;Masson, E.;Mastroserio, A.;Mathis, A. M.;Matuoka, P. F. T.;Matyja, A.;Mayer, C.;Mazer, J.;Mazzilli, M.;Mazzoni, M. A.;Meddi, F.;Melikyan, Y.;Menchaca-Rocha, A.;Meninno, E.;Mercado Pérez, J.;Meres, M.;Mhlanga, S.;Miake, Y.;Mieskolainen, M. M.;Mihaylov, D. L.;Mikhaylov, K.;Mischke, A.;Miśkowiec, D.;Mitra, J.;Mitu, C. M.;Mohammadi, N.;Mohanty, A. P.;Mohanty, B.;Mohisin Khan, M.;Moreira De Godoy, D. A.;Moreno, L. A. P.;Moretto, S.;Morreale, A.;Morsch, A.;Muccifora, V.;Mudnic, E.;Mühlheim, D.;Muhuri, S.;Mukherjee, M.;Mulligan, J. D.;Munhoz, M. G.;Münning, K.;Munoz, M. I. A.;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.;Narayan, A.;Naru, M. U.;Natal da Luz, H.;Nattrass, C.;Navarro, S. R.;Nayak, K.;Nayak, R.;Nayak, T. K.;Nazarenko, S.;Negrao De Oliveira, R. A.;Nellen, L.;Nesbo, S. V.;Neskovic, G.;Ng, F.;Nicassio, M.;Niculescu, M.;Niedziela, J.;Nielsen, B. S.;Nikolaev, S.;Nikulin, S.;Nikulin, V.;Nobuhiro, A.;Noferini, F.;Nomokonov, P.;Nooren, G.;Noris, J. C. C.;Norman, J.;Nyanin, A.;Nystrand, J.;Oeschler, H.;Oh, H.;Ohlson, A.;Okubo, T.;Olah, L.;Oleniacz, J.;Oliveira Da Silva, A. C.;Oliver, M. H.;Onderwaater, J.;Oppedisano, C.;Orava, R.;Oravec, M.;Ortiz Velasquez, A.;Oskarsson, A.;Otwinowski, J.;Oyama, K.;Pachmayer, Y.;Pacik, V.;Pagano, D.;Paić, G.;Palni, P.;Pan, J.;Pandey, A. K.;Panebianco, S.;Papikyan, V.;Pareek, P.;Park, J.;Parmar, S.;Passfeld, A.;Pathak, S. P.;Patra, R. N.;Paul, B.;Pei, H.;Peitzmann, T.;Peng, X.;Pereira, L. G.;Pereira Da Costa, H.;Peresunko, D.;Perez Lezama, E.;Peskov, V.;Pestov, Y.;Petráček, V.;Petrovici, M.;Petta, C.;Pezzi, R. P.;Piano, S.;Pikna, M.;Pillot, P.;Pimentel, L. O. D. L.;Pinazza, O.;Pinsky, L.;Pisano, S.;Piyarathna, D. B.;Płoskoń, M.;Planinic, M.;Pliquett, F.;Pluta, J.;Pochybova, S.;Podesta-Lerma, P. L. M.;Poghosyan, M. G.;Polichtchouk, B.;Poljak, N.;Poonsawat, W.;Pop, A.;Poppenborg, H.;Porteboeuf-Houssais, S.;Pozdniakov, V.;Prasad, S. K.;Preghenella, R.;Prino, F.;Pruneau, C. A.;Pshenichnov, I.;Puccio, M.;Punin, V.;Putschke, J.;Raha, S.;Rajput, S.;Rak, J.;Rakotozafindrabe, A.;Ramello, L.;Rami, F.;Rana, D. B.;Raniwala, R.;Raniwala, S.;Räsänen, S. S.;Rascanu, B. T.;Rathee, D.;Ratza, V.;Ravasenga, I.;Read, K. F.;Redlich, K.;Rehman, A.;Reichelt, P.;Reidt, F.;Ren, X.;Renfordt, R.;Reshetin, A.;Reygers, K.;Riabov, V.;Richert, T.;Richter, M.;Riedler, P.;Riegler, W.;Riggi, F.;Ristea, C.;Rodríguez Cahuantzi, M.;Røed, K.;Rogalev, R.;Rogochaya, E.;Rohr, D.;Röhrich, D.;Rokita, P. S.;Ronchetti, F.;Rosas, E. D.;Roslon, K.;Rosnet, P.;Rossi, A.;Rotondi, A.;Roukoutakis, F.;Roy, C.;Roy, P.;Rueda, O. V.;Rui, R.;Rumyantsev, B.;Rustamov, A.;Ryabinkin, E.;Ryabov, Y.;Rybicki, A.;Saarinen, S.;Sadhu, S.;Sadovsky, S.;Šafařík, K.;Saha, S. K.;Sahoo, B.;Sahoo, P.;Sahoo, R.;Sahoo, S.;Sahu, P. K.;Saini, J.;Sakai, S.;Saleh, M. A.;Salzwedel, J.;Sambyal, S.;Samsonov, V.;Sandoval, A.;Sarkar, A.;Sarkar, D.;Sarkar, N.;Sarma, P.;Sas, M. H. P.;Scapparone, E.;Scarlassara, F.;Schaefer, B.;Scheid, H. S.;Schiaua, C.;Schicker, R.;Schmidt, C.;Schmidt, H. R.;Schmidt, M. O.;Schmidt, M.;Schmidt, N. V.;Schukraft, J.;Schutz, Y.;Schwarz, K.;Schweda, K.;Scioli, G.;Scomparin, E.;Šefčík, M.;Seger, J. E.;Sekiguchi, Y.;Sekihata, D.;Selyuzhenkov, I.;Senosi, K.;Senyukov, S.;Serradilla, E.;Sett, P.;Sevcenco, A.;Shabanov, A.;Shabetai, A.;Shahoyan, R.;Shaikh, W.;Shangaraev, A.;Sharma, A.;Sharma, A.;Sharma, N.;Sheikh, A. I.;Shigaki, K.;Shimomura, M.;Shirinkin, S.;Shou, Q.;Shtejer, K.;Sibiriak, Y.;Siddhanta, S.;Sielewicz, K. M.;Siemiarczuk, T.;Silaeva, S.;Silvermyr, D.;Simatovic, G.;Simonetti, G.;Singaraju, R.;Singh, R.;Singhal, V.;Sinha, T.;Sitar, B.;Sitta, M.;Skaali, T. B.;Slupecki, M.;Smirnov, N.;Snellings, R. J. M.;Snellman, T. W.;Song, J.;Soramel, F.;Sorensen, S.;Sozzi, F.;Sputowska, I.;Stachel, J.;Stan, I.;Stankus, P.;Stenlund, E.;Stocco, D.;Storetvedt, M. M.;Strmen, P.;Suaide, A. A. P.;Sugitate, T.;Suire, C.;Suleymanov, M.;Suljic, M.;Sultanov, R.;Šumbera, M.;Sumowidagdo, S.;Suzuki, K.;Swain, S.;Szabo, A.;Szarka, I.;Tabassam, U.;Takahashi, J.;Tambave, G. J.;Tanaka, N.;Tarhini, M.;Tariq, M.;Tarzila, M. G.;Tauro, A.;Tejeda Muñoz, G.;Telesca, A.;Terasaki, K.;Terrevoli, C.;Teyssier, B.;Thakur, D.;Thakur, S.;Thomas, D.;Thoresen, F.;Tieulent, R.;Tikhonov, A.;Timmins, A. R.;Toia, A.;Toppi, M.;Torres, S. R.;Tripathy, S.;Trogolo, S.;Trombetta, G.;Tropp, L.;Trubnikov, V.;Trzaska, 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.;Van Der Maarel, J.;Van Hoorne, J. W.;van Leeuwen, M.;Vanat, T.;Vyvre, P. Vande;Varga, D.;Vargas, A.;Vargyas, M.;Varma, R.;Vasileiou, M.;Vasiliev, A.;Vauthier, A.;VázquezDoce, O.;Vechernin, V.;Veen, A. M.;Velure, A.;Vercellin, E.;Vergara Limón, S.;Vermunt, L.;Vernet, R.;Vértesi, R.;Vickovic, L.;Viinikainen, J.;Vilakazi, Z.;Villalobos Baillie, O.;Villatoro Tello, A.;Vinogradov, A.;Vinogradov, L.;Virgili, T.;Vislavicius, V.;Vodopyanov, A.;Völkl, M. A.;Voloshin, K.;Voloshin, S. A.;Volpe, G.;von Haller, B.;Vorobyev, I.;Voscek, D.;Vranic, D.;Vrláková, J.;Wagner, B.;Wang, H.;Wang, M.;Watanabe, Y.;Weber, M.;Weber, S. G.;Wegrzynek, A.;Weiser, D. F.;Wenzel, S. C.;Wessels, J. P.;Westerhoff, U.;Whitehead, A. M.;Wiechula, J.;Wikne, J.;Wilk, G.;Wilkinson, J.;Willems, G. A.;Williams, M. C. S.;Willsher, E.;Windelband, B.;Witt, W. E.;Xu, R.;Yalcin, S.;Yamakawa, K.;Yang, P.;Yano, S.;Yin, Z.;Yokoyama, H.;Yoo, I. -K.;Yoon, J. H.;Yun, E.;Yurchenko, V.;Zaccolo, V.;Zaman, A.;Zampolli, C.;Zanoli, H. J. C.;Zardoshti, N.;Zarochentsev, A.;Závada, P.;Zaviyalov, N.;Zbroszczyk, H.;Zhalov, M.;Zhang, H.;Zhang, X.;Zhang, Y.;Zhang, C.;Zhang, Z.;Zhao, C.;Zhigareva, N.;Zhou, D.;Zhou, Y.;Zhou, Z.;Zhu, H.;Zhu, J.;Zhu, Y.;Zichichi, A.;Zimmermann, M. B.;Zinovjev, G.;Zmeskal, J.;Zou, S.
2018
Abstract
Neutral pion and η meson invariant differential yields were measured in non-single diffractive p–Pb collisions at √sNN = 5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of π0 and η meson inclusive production are measured near mid-rapidity in a broad transverse momentum range of 0.3<20GeV/c and 0.7<20GeV/c, respectively. The measured η/ π0 ratio increases with pT and saturates for pT > 4 GeV / c at 0.483 ± 0. 015 stat± 0. 015 sys. A deviation from mT scaling is observed for pT< 2 GeV / c. The measured η/ π0 ratio is consistent with previous measurements from proton-nucleus and pp collisions over the full pT range. The measured η/ π0 ratio at high pT also agrees within uncertainties with measurements from nucleus–nucleus collisions. The π0 and η yields in p–Pb relative to the scaled pp interpolated reference, RpPb, are presented for 0.3 < pT< 20 GeV / c and 0.7 < pT< 20 GeV / c, respectively. The results are compared with theoretical model calculations. The values of RpPb are consistent with unity for transverse momenta above 2 GeV / c. These results support the interpretation that the suppressed yield of neutral mesons measured in Pb–Pb collisions at LHC energies is due to parton energy loss in the hot QCD medium.
Acharya, S., Adamová, D., Adolfsson, J., Aggarwal, M., Aglieri Rinella, G., Agnello, M., et al. (2018). Neutral pion and η meson production in p–Pb collisions at √sNN = 5.02 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 78(8), 1-25 [10.1140/epjc/s10052-018-6013-8].
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/664153
Citazioni
ND
42
32
social impact
Conferma cancellazione
Sei sicuro che questo prodotto debba essere cancellato?
simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.