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
Catalogo dei prodotti della ricerca
We present measurements of two-particle correlations with neutral pion trigger particles of transverse momenta 8 < p(T)(trig) < 16 GeV/c and associated charged particles of 0.5 < p(T)(assoc) < 10 GeV/c versus the azimuthal angle difference Delta phi at midrapidity in pp and central Pb-Pb collisions at root sNN= 2.76 TeV with ALICE. The new measurements exploit associated charged hadrons down to 0.5GeV/c, which significantly extends our previous measurement that only used charged hadrons above 3GeV/c. After subtracting the contributions of the flow background, v2to v(5), the per-trigger yields are extracted for vertical bar Delta phi vertical bar < 0.7 on the near and for vertical bar Delta phi - pi vertical bar < 1.1 on the away side. The ratio of per-trigger yields in Pb-Pb to those in pp collisions, I-AA, is measured on the near and away side for the 0-10% most central Pb-Pb collisions. On the away side, the per-trigger yields in Pb-Pb are strongly suppressed to the level of I-AA approximate to 0.6 for p(T)(assoc) > 3GeV/c, while with decreasing momenta an enhancement develops reaching about 5 at low p(T)(assoc) . On the near side, an enhancement of I-AA between 1.2 at the highest to 1.8 at the lowest p(T)(assoc) is observed. The data are compared to parton-energy-loss predictions of the JEWEL and AMPT event generators, as well as to a perturbative QCD calculation with medium-modified fragmentation functions. All calculations qualitatively describe the away-side suppression at high p(T)(assoc). Only AMPT captures the enhancement at low p(T)(assoc) , both on the near and away side. However, it also underpredicts IAAabove 5GeV/c, in particular on the near-side. (C) 2016 The Author(s). Published by Elsevier B.V.
Jet-like correlations with neutral pion triggers in pp and central Pb-Pb collisions at 2.76 TeV / Adam, J., Adamova, D., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Aiola, S., Akindinov, A., Alam, S.N., Albuquerque, D.S.D., Aleksandrov, D., Alessandro, B., Alexandre, D., Alfaro Molina, R., Alici, A., Alkin, A., Alme, J., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 763:(2016), pp. 238-250. [10.1016/j.physletb.2016.10.048]
Jet-like correlations with neutral pion triggers in pp and central Pb-Pb collisions at 2.76 TeV
Adam, J.;Adamova, D.;Aggarwal, M. M.;Rinella, G. Aglieri;Agnello, M.;Agrawal, N.;Ahammed, Z.;Ahmad, S.;Ahn, S. U.;Aiola, S.;Akindinov, A.;Alam, S. N.;Albuquerque, D. S. D.;Aleksandrov, D.;Alessandro, B.;Alexandre, D.;Alfaro Molina, R.;Alici, A.;Alkin, A.;Alme, J.;Alt, T.;Altinpinar, S.;Altsybeev, I.;Prado, C. Alves Garcia;An, M.;Andrei, C.;Andrews, H. A.;Andronic, A.;Anguelov, V.;Anson, C.;Anticic, T.;Antinori, F.;Antonioli, P.;Aphecetche, L.;Appelshaeuser, H.;Arcelli, S.;Arnaldi, R.;Arnold, O. W.;Arsene, I. C.;Arslandok, M.;Audurier, B.;Augustinus, A.;Averbeck, R.;Azmi, M. D.;Badala, A.;Baek, Y. W.;Bagnasco, S.;Bailhache, R.;Bala, R.;Balasubramanian, S.;Baldisseri, A.;Baral, R. C.;Barbano, A. M.;Barbera, R.;Barile, F.;Barnafoldi, G. G.;Barnby, L. S.;Barret, V.;Bartalini, P.;Barth, K.;Bartke, J.;Bartsch, E.;Basile, M.;Bastid, N.;Basu, S.;Bathen, B.;Batigne, G.;Camejo, A. Batista;Batyunya, B.;Batzing, P. C.;Bearden, I. G.;Beck, H.;Bedda, C.;Behera, N. K.;Belikov, I.;Bellini, F.;Bello Martinez, H.;Bellwied, R.;Belmont-Moreno, E.;Beltran, L. G. E.;Belyaev, V.;Bencedi, G.;Beole, S.;Berceanu, I.;Bercuci, A.;Berdnikov, Y.;Berenyi, D.;Bertens, R. A.;Berzano, D.;Betev, L.;Bhasin, A.;Bhat, I. R.;Bhati, A. K.;Bhattacharjee, B.;Bhom, J.;Bianchi, L.;Bianchi, N.;Bianchin, C.;Bielcik, J.;Bielcikova, J.;Bilandzic, A.;Biro, G.;Biswas, R.;Biswas, S.;Bjelogrlic, S.;Blair, J. T.;Blau, D.;Blume, C.;Bock, F.;Bogdanov, A.;Boggild, H.;Boldizsar, L.;Bombara, M.;Bonora, M.;Book, J.;Borel, H.;Borissov, A.;Borri, M.;Bossu, F.;Botta, E.;Bourjau, C.;Braun-Munzinger, P.;Bregant, M.;Broker, T. A.;Browning, T. A.;Broz, M.;Brucken, E. J.;Bruna, E.;Bruno, G. E.;Budnikov, D.;Buesching, H.;Bufalino, S.;Buhler, P.;Buitron, S. A. I.;Buncic, P.;Busch, O.;Buthelezi, Z.;Butt, J. B.;Buxton, J. T.;Cabala, J.;Caffarri, D.;Cai, X.;Caines, H.;Caliva, A.;Villar, E. Calvo;Camerini, P.;Carena, F.;Carena, W.;Carnesecchi, F.;Castellanos, J. Castillo;Castro, A. J.;Casula, E. A. R.;Ceballos Sanchez, C.;Cepila, J.;Cerello, P.;Cerkala, J.;Chang, B.;Chapeland, S.;Chartier, M.;Charvet, J. L.;Chattopadhyay, S.;Chattopadhyay, S.;Chauvin, A.;Chelnokov, V.;Cherney, M.;Cheshkov, C.;Cheynis, B.;Barroso, V. Chibante;Chinellato, D. D.;Cho, S.;Chochula, P.;Choi, K.;Chojnacki, M.;Choudhury, S.;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.;Balbastre, G. Conesa;del Valle, Z. Conesa;Connors, M. E.;Contreras, J. G.;Cormier, T. M.;Morales, Y. Corrales;Cortes Maldonado, I.;Cortese, P.;Cosentino, M. R.;Costa, F.;Crkovska, J.;Crochet, P.;Cruz Albino, R.;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.;Deisting, A.;Deloff, A.;Deplano, C.;Dhankher, P.;Di Bari, D.;Di Mauro, A.;Di Nezza, P.;Di Ruzza, B.;Diaz Corchero, M. A.;Dietel, T.;Dillenseger, P.;Divia, R.;Djuvsland, O.;Dobrin, A.;Gimenez, D. Domenicis;Doenigus, B.;Dordic, O.;Drozhzhova, T.;Dubey, A. K.;Dubla, A.;Ducroux, L.;Duggal, A. K.;Dupieux, P.;Ehlers, R. J.;Elia, D.;Endress, E.;Engel, H.;Epple, E.;Erazmus, B.;Erhardt, F.;Espagnon, B.;Estienne, M.;Esumi, S.;Eulisse, G.;Eum, J.;Evans, D.;Evdokimov, S.;Eyyubova, G.;Fabbietti, L.;Fabris, D.;Faivre, J.;Fantoni, A.;Fasel, M.;Feldkamp, L.;Feliciello, A.;Feofilov, G.;Ferencei, J.;Fernandez Tellez, A.;Ferreiro, E. G.;Ferretti, A.;Festanti, A.;Feuillard, V. J. G.;Figiel, J.;Figueredo, M. A. S.;Filchagin, S.;Finogeev, D.;Fionda, F. M.;Fiore, E. 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.;Girard, M. Fusco;Gaardhoje, J. J.;Gagliardi, M.;Gago, A. M.;Gajdosova, K.;Gallio, M.;Galvan, C. D.;Gangadharan, D. R.;Ganoti, P.;Gao, C.;Garabatos, C.;Garcia-Solis, E.;Garg, K.;Garg, P.;Gargiulo, C.;Gasik, P.;Gauger, E. F.;Germain, M.;Gheata, M.;Ghosh, P.;Ghosh, S. K.;Gianotti, P.;Giubellino, P.;Giubilato, P.;Gladysz-Dziadus, E.;Glaessel, P.;Gomez Coral, D. M.;Ramirez, A. Gomez;Gonzalez, A. S.;Gonzalez, V.;Gonzalez-Zamora, P.;Gorbunov, S.;Gorlich, L.;Gotovac, S.;Grabski, V.;Grachov, O. A.;Graczykowski, L. K.;Graham, K. L.;Grelli, A.;Grigoras, C.;Grigoriev, V.;Grigoryan, A.;Grigoryan, S.;Grinyov, B.;Grion, N.;Gronefeld, J. M.;Grosse-Oetringhaus, J. F.;Grosso, R.;Gruber, L.;Guber, F.;Guernane, R.;Guerzoni, B.;Gulbrandsen, K.;Gunji, T.;Gupta, A.;Gupta, R.;Guzman, I. B.;Haake, R.;Hadjidakis, C.;Haiduc, M.;Hamagaki, H.;Hamar, G.;Hamon, J. C.;Harris, J. W.;Harton, A.;Hatzifotiadou, D.;Hayashi, S.;Heckel, S. T.;Hellbar, E.;Helstrup, H.;Herghelegiu, A.;Herrera Corral, G.;Herrmann, F.;Hess, B. A.;Hetland, K. F.;Hillemanns, H.;Hippolyte, B.;Horak, D.;Hosokawa, R.;Hristov, P.;Hughes, C.;Humanic, T. J.;Hussain, N.;Hussain, T.;Hutter, D.;Hwang, D. S.;Ilkaev, R.;Inaba, M.;Incani, E.;Ippolitov, M.;Irfan, M.;Isakov, V.;Ivanov, M.;Ivanov, V.;Izucheev, V.;Jacak, B.;Jacazio, N.;Jacobs, P. M.;Jadhav, M. B.;Jadlovska, S.;Jadlovsky, J.;Jahnke, C.;Jakubowska, M. J.;Janik, M. A.;Jayarathna, P. H. S. Y.;Jena, C.;Jena, S.;Bustamante, R. T. Jimenez;Jones, P. G.;Jung, H.;Jusko, A.;Kalinak, P.;Kalweit, A.;Kang, J. H.;Kaplin, V.;Kar, S.;Uysal, A. Karasu;Karavichev, O.;Karavicheva, T.;Karayan, L.;Karpechev, E.;Kebschull, U.;Keidel, R.;Keijdener, D. L. D.;Keil, M.;Khan, M. Mohisin;Khan, P.;Khan, S. A.;Khanzadeev, A.;Kharlov, Y.;Khatun, A.;Khuntia, A.;Kileng, B.;Kim, D. W.;Kim, D. J.;Kim, D.;Kim, H.;Kim, J. S.;Kim, J.;Kim, M.;Kim, M.;Kim, S.;Kim, T.;Kirsch, S.;Kisel, I.;Kiselev, S.;Kisiel, A.;Kiss, G.;Klay, J. L.;Klein, C.;Klein, J.;Klein-Boesing, C.;Klewin, S.;Kluge, A.;Knichel, M. L.;Knospe, A. G.;Kobdaj, C.;Kofarago, M.;Kollegger, T.;Kolojvari, A.;Kondratiev, V.;Kondratyeva, N.;Kondratyuk, E.;Konevskikh, A.;Kopcik, M.;Kour, M.;Kouzinopoulos, C.;Kovalenko, O.;Kovalenko, V.;Kowalski, M.;Meethaleveedu, G. Koyithatta;Kralik, I.;Kravcakova, A.;Krivda, M.;Krizek, F.;Kryshen, E.;Krzewicki, M.;Kubera, A. M.;Kucera, V.;Kuhn, C.;Kuijer, P. G.;Kumar, A.;Kumar, J.;Kumar, L.;Kumar, S.;Kundu, S.;Kurashvili, P.;Kurepin, A.;Kurepin, A. B.;Kuryakin, A.;Kweon, M. J.;Kwon, Y.;La Pointe, S. L.;La Rocca, P.;Fernandes, C. Lagana;Lakomov, I.;Langoy, R.;Lapidus, K.;Lara, C.;Lardeux, A.;Lattuca, A.;Laudi, E.;Lazaridis, L.;Lea, R.;Leardini, L.;Lee, S.;Lehas, F.;Lehner, S.;Lehrbach, J.;Lemmon, R. C.;Lenti, V.;Leogrande, E.;Leon Monzon, I.;Leon Vargas, H.;Leoncino, M.;Levai, P.;Li, S.;Li, X.;Lien, J.;Lietava, R.;Lindal, S.;Lindenstruth, V.;Lippmann, C.;Lisa, M. A.;Ljunggren, H. M.;Lodato, D. F.;Loenne, P. I.;Loginov, V.;Loizides, C.;Lopez, X.;Lopez Torres, E.;Lowe, A.;Luettig, P.;Lunardon, M.;Luparello, G.;Lupi, M.;Lutz, T. H.;Maevskaya, A.;Mager, M.;Mahajan, S.;Mahmood, S. M.;Maire, A.;Majka, R. D.;Malaev, M.;Maldonado Cervantes, I.;Malinina, L.;Mal'Kevich, D.;Malzacher, P.;Mamonov, A.;Manko, V.;Manso, F.;Manzari, V.;Mao, Y.;Marchisone, M.;Mares, J.;Margagliotti, G. V.;Margotti, A.;Margutti, J.;Marin, A.;Markert, C.;Marquard, M.;Martin, N. A.;Martinengo, P.;Martinez, M. I.;Garcia, G. Martinez;Pedreira, M. Martinez;Mas, A.;Masciocchi, S.;Masera, M.;Masoni, A.;Mastroserio, A.;Matyja, A.;Mayer, C.;Mazer, J.;Mazzilli, M.;Mazzoni, M. A.;Meddi, F.;Melikyan, Y.;Menchaca-Rocha, A.;Meninno, E.;Perez, J. Mercado;Meres, M.;Mhlanga, S.;Miake, Y.;Mieskolainen, M. M.;Mikhaylov, K.;Milosevic, J.;Mischke, A.;Mishra, A. N.;Mishra, T.;Miskowiec, D.;Mitra, J.;Mitu, C. M.;Mohammadi, N.;Mohanty, B.;Molnar, L.;Montes, E.;De Godoy, D. A. Moreira;Moreno, L. A. P.;Moretto, S.;Morreale, A.;Morsch, A.;Muccifora, V.;Mudnic, E.;Muehlheim, D.;Muhuri, S.;Mukherjee, M.;Mulligan, J. D.;Munhoz, M. G.;Muenning, K.;Munzer, R. H.;Murakami, H.;Murray, S.;Musa, L.;Musinsky, J.;Naik, B.;Nair, R.;Nandi, B. K.;Nania, R.;Nappi, E.;Naru, M. U.;da Luz, H. Natal;Nattrass, C.;Navarro, S. R.;Nayak, K.;Nayak, R.;Nayak, T. K.;Nazarenko, S.;Nedosekin, A.;De Oliveira, R. A. Negrao;Nellen, L.;Ng, F.;Nicassio, M.;Niculescu, M.;Niedziela, J.;Nielsen, B. S.;Nikolaev, S.;Nikulin, S.;Nikulin, V.;Noferini, F.;Nomokonov, P.;Nooren, G.;Noris, J. C. C.;Norman, J.;Nyanin, A.;Nystrand, J.;Oeschler, H.;Oh, S.;Oh, S. K.;Ohlson, A.;Okatan, A.;Okubo, T.;Olah, L.;Oleniacz, J.;Da Silva, A. C. Oliveira;Oliver, M. H.;Onderwaater, J.;Oppedisano, C.;Orava, R.;Oravec, M.;Ortiz Velasquez, A.;Oskarsson, A.;Otwinowski, J.;Oyama, K.;Ozdemir, M.;Pachmayer, Y.;Pagano, D.;Pagano, P.;Paic, G.;Pal, S. K.;Palni, P.;Pan, J.;Pandey, A. K.;Papikyan, V.;Pappalardo, G. S.;Pareek, P.;Park, J.;Park, W. J.;Parmar, S.;Passfeld, A.;Paticchio, V.;Patra, R. N.;Paul, B.;Pei, H.;Peitzmann, T.;Peng, X.;Da Costa, H. Pereira;Peresunko, D.;Lezama, E. Perez;Peskov, V.;Pestov, Y.;Petracek, V.;Petrov, V.;Petrovici, M.;Petta, C.;Piano, S.;Pikna, M.;Pillot, P.;Pimentel, L. O. D. L.;Pinazza, O.;Pinsky, L.;Piyarathna, D. B.;Ploskon, M.;Planinic, M.;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.;Porter, J.;Pospisil, J.;Prasad, S. K.;Preghenella, R.;Prino, F.;Pruneau, C. A.;Pshenichnov, I.;Puccio, M.;Puddu, G.;Pujahari, P.;Punin, V.;Putschke, J.;Qvigstad, H.;Rachevski, A.;Raha, S.;Rajput, S.;Rak, J.;Rakotozafindrabe, A.;Ramello, L.;Rami, F.;Raniwala, R.;Raniwala, S.;Rasanen, 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.;Reolon, A. R.;Reshetin, A.;Reygers, K.;Riabov, V.;Ricci, R. A.;Richert, T.;Richter, M.;Riedler, P.;Riegler, W.;Riggi, F.;Ristea, C.;Rodriguez Cahuantzi, M.;Roed, K.;Rogochaya, E.;Rohr, D.;Rohrich, D.;Ronchetti, F.;Ronflette, L.;Rosnet, P.;Rossi, A.;Roukoutakis, F.;Roy, A.;Roy, C.;Roy, P.;Rubio Montero, A. J.;Rui, R.;Russo, R.;Ryabinkin, E.;Ryabov, Y.;Rybicki, A.;Saarinen, S.;Sadhu, S.;Sadovsky, S.;Safarik, K.;Sahlmuller, B.;Sahoo, P.;Sahoo, R.;Sahoo, S.;Sahu, P. K.;Saini, J.;Sakai, S.;Saleh, M. A.;Salzwedel, J.;Sambyal, S.;Samsonov, V.;Sandor, L.;Sandoval, A.;Sano, M.;Sarkar, D.;Sarkar, N.;Sarma, P.;Scapparone, E.;Scarlassara, F.;Schiaua, C.;Schicker, R.;Schmidt, C.;Schmidt, H. R.;Schmidt, M.;Schukraft, J.;Schutz, Y.;Schwarz, K.;Schweda, K.;Scioli, G.;Scomparin, E.;Scott, R.;Sefcik, M.;Seger, J. E.;Sekiguchi, Y.;Sekihata, D.;Selyuzhenkov, I.;Senosi, K.;Senyukov, S.;Serradilla, E.;Sevcenco, A.;Shabanov, A.;Shabetai, A.;Shadura, O.;Shahoyan, R.;Shangaraev, A.;Sharma, A.;Sharma, A.;Sharma, M.;Sharma, M.;Sharma, N.;Sheikh, A. I.;Shigaki, K.;Shou, Q.;Shtejer, K.;Sibiriak, Y.;Siddhanta, S.;Sielewicz, K. M.;Siemiarczuk, T.;Silvermyr, D.;Silvestre, C.;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.;Song, M.;Song, Z.;Soramel, F.;Sorensen, S.;Sozzi, F.;Spiriti, E.;Sputowska, I.;Spyropoulou-Stassinaki, M.;Stachel, J.;Stan, I.;Stankus, P.;Stenlund, E.;Steyn, G.;Stiller, J. H.;Stocco, D.;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, I.;Szczepankiewicz, A.;Szymanski, M.;Tabassam, U.;Takahashi, J.;Tambave, G. J.;Tanaka, N.;Tarhini, M.;Tariq, M.;Tarzila, M. G.;Tauro, A.;Tejeda Munoz, G.;Telesca, A.;Terasaki, K.;Terrevoli, C.;Teyssier, B.;Thader, J.;Thakur, D.;Thomas, D.;Tieulent, R.;Tikhonov, A.;Timmins, A. R.;Toia, A.;Tripathy, S.;Trogolo, S.;Trombetta, G.;Trubnikov, V.;Trzaska, W. H.;Tsuji, T.;Tumkin, A.;Turrisi, R.;Tveter, T. S.;Ullaland, K.;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.;Doce, O. Vazquez;Vechernin, V.;Veen, A. M.;Velure, A.;Vercellin, E.;Vergara Limon, S.;Vernet, R.;Vertesi, R.;Vickovic, L.;Vigolo, S.;Viinikainen, J.;Vilakazi, Z.;Baillie, O. Villalobos;Villatoro Tello, A.;Vinogradov, A.;Vinogradov, L.;Virgili, T.;Vislavicius, V.;Vodopyanov, A.;Voelkl, M. A.;Voloshin, K.;Voloshin, S. A.;Volpe, G.;von haller, B.;Vorobyev, I.;Voscek, D.;Vranic, D.;Vrlakova, J.;Vulpescu, B.;Wagner, B.;Wagner, J.;Wang, H.;Wang, M.;Watanabe, D.;Watanabe, Y.;Weber, M.;Weber, S. G.;Weiser, D. F.;Wessels, J. P.;Westerhoff, U.;Whitehead, A. M.;Wiechula, J.;Wikne, J.;Wilk, G.;Wilkinson, J.;Willems, G. A.;Williams, M. C. S.;Windelband, B.;Winn, M.;Yalcin, S.;Yang, P.;Yano, S.;Yin, Z.;Yokoyama, H.;Yoo, I. -K.;Yoon, J. H.;Yurchenko, V.;Zaccolo, V.;Zaman, A.;Zampolli, C.;Zanoli, H. J. C.;Zaporozhets, S.;Zardoshti, N.;Zarochentsev, A.;Zavada, P.;Zaviyalov, N.;Zbroszczyk, H.;Zgura, I. S.;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, X.;Zichichi, A.;Zimmermann, A.;Zimmermann, M. B.;Zinovjev, G.;Zmeskal, J.
2016
Abstract
We present measurements of two-particle correlations with neutral pion trigger particles of transverse momenta 8 < p(T)(trig) < 16 GeV/c and associated charged particles of 0.5 < p(T)(assoc) < 10 GeV/c versus the azimuthal angle difference Delta phi at midrapidity in pp and central Pb-Pb collisions at root sNN= 2.76 TeV with ALICE. The new measurements exploit associated charged hadrons down to 0.5GeV/c, which significantly extends our previous measurement that only used charged hadrons above 3GeV/c. After subtracting the contributions of the flow background, v2to v(5), the per-trigger yields are extracted for vertical bar Delta phi vertical bar < 0.7 on the near and for vertical bar Delta phi - pi vertical bar < 1.1 on the away side. The ratio of per-trigger yields in Pb-Pb to those in pp collisions, I-AA, is measured on the near and away side for the 0-10% most central Pb-Pb collisions. On the away side, the per-trigger yields in Pb-Pb are strongly suppressed to the level of I-AA approximate to 0.6 for p(T)(assoc) > 3GeV/c, while with decreasing momenta an enhancement develops reaching about 5 at low p(T)(assoc) . On the near side, an enhancement of I-AA between 1.2 at the highest to 1.8 at the lowest p(T)(assoc) is observed. The data are compared to parton-energy-loss predictions of the JEWEL and AMPT event generators, as well as to a perturbative QCD calculation with medium-modified fragmentation functions. All calculations qualitatively describe the away-side suppression at high p(T)(assoc). Only AMPT captures the enhancement at low p(T)(assoc) , both on the near and away side. However, it also underpredicts IAAabove 5GeV/c, in particular on the near-side. (C) 2016 The Author(s). Published by Elsevier B.V.
01 Pubblicazione su rivista::01a Articolo in rivista
Jet-like correlations with neutral pion triggers in pp and central Pb-Pb collisions at 2.76 TeV / Adam, J., Adamova, D., Aggarwal, M.M., Rinella, G.A., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Aiola, S., Akindinov, A., Alam, S.N., Albuquerque, D.S.D., Aleksandrov, D., Alessandro, B., Alexandre, D., Alfaro Molina, R., Alici, A., Alkin, A., Alme, J., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 763:(2016), pp. 238-250. [10.1016/j.physletb.2016.10.048]
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/11573/1077265
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
Citazioni
ND
34
30
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.
