Measurement of D-s(+) product ion and nuclear modification factor in Pb-Pb collisions at root S-NN=2.76 TeV

Autor: Adam, J, Adamova, D, Aggarwal, Mm, Rinella, Ga, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, Su, Aiola, S, Akindinov, A, Alam, Sn, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, Ra, Alici, A, Alkin, A, Almaraz, Jrm, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, Cag, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Anticic, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshauser, H, Arcelli, S, Arnaldi, R, Arnold, Ow, Arsene, Ic, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, Md, Badala, A, Baek, Yw, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baral, Rc, Barbano, Am, Barbera, Roberto, Barile, F, Barnafoldi, Gg, Barnby, Ls, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, Ab, Batyunya, B, Batzing, Pc, Bearden, Ig, Beck, H, Bedda, C, Behera, Nk, Belikov, I, Bellini, F, Martinez, Hb, Bellwied, R, Belmont, R, Belmont Moreno, E, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, Ra, Berzano, D, Betev, L, Bhasin, A, Bhat, Ir, Bhati, Ak, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielcik, J, Bielcikova, J, Bilandzic, A, Biswas, R, Biswas, S, Bjelogrlic, S, Blair, Jt, Blau, D, Blume, C, Bock, F, Bogdanov, A, Boggild, H, Boldizsar, L, Bombara, M, Book, J, Borel, H, Borissov, A, Borri, M, Bossu, F, Botta, E, Bottger, S, Bourjau, C, Braun Munzinger, P, Bregant, M, Breitner, T, Broker, Ta, Browning, Ta, Broz, M, Brucken, Ej, Bruna, E, Bruno, Ge, Budnikov, D, Buesching, H, Bufalino, S, Buncic, P, Busch, O, Buthelezi, Z, Butt, Jb, Buxton, Jt, Caffarri, D, Cai, X, Caines, H, Diaz, Lc, Caliva, A, Villar, Ec, Camerini, P, Carena, F, Carena, W, Carnesecchi, F, Castellanos, Jc, Castro, Aj, Casula, Ear, Sanchez, Cc, Cepila, J, Cerello, P, Cerkala, J, Chang, B, Chapeland, S, Chartier, M, Charvet, Jl, Chattopadhyay, S, Chelnokov, V, Cherney, M, Cheshkov, C, Cheynis, B, Barroso, Vc, Chinellato, Dd, Cho, S, Chochula, P, Choi, K, Chojnacki, M, Choudhury, S, Christakoglou, P, Christensen, Ch, Christiansen, P, Chujo, T, Chung, Su, Cicalo, C, Cifarelli, L, Cindolo, F, Cleymans, J, Colamaria, F, Colella, D, Collu, A, Colocci, M, Balbastre, Gc, del Valle ZC, Connors, Me, Contreras, Jg, Cormier, Tm, Morales, Yc, Maldonado, Ic, Cortese, P, Cosentino, Mr, Costa, F, Crochet, P, Albino, Rc, Cuautle, E, Cunqueiro, L, Dahms, T, Dainese, A, 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, Deisting, A, Deloff, A, Denes, E, Deplano, C, Dhankher, P, Di Bari, D, Di Mauro, A, Di Nezza, P, Corchero, Mad, Dietel, T, Dillenseger, P, Divia, R, Djuvsland, O, Dobrin, A, Gimenez, Dd, Donigus, B, Dordic, O, Drozhzhova, T, Dubey, Ak, Dubla, A, Ducroux, L, Dupieux, P, Ehlers, Rj, Elia, D, Engel, H, Epple, E, Erazmus, B, Erdemir, I, Erhardt, F, Espagnon, B, Estienne, M, Esumi, S, 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, Tellez, Af, Ferreiro, Eg, Ferretti, A, Festanti, A, Feuillard, Vjg, Figiel, J, Figueredo, Mas, Filchagin, S, Finogeev, D, Fionda, Fm, Fiore, Em, Fleck, Mg, Floris, M, Foertsch, S, Foka, P, Fokin, S, Fragiacomo, E, Francescon, A, Frankenfeld, U, Fuchs, U, Furget, C, Furs, A, Girard, Mf, Gaardhoje, Jj, Gagliardi, M, Gago, Am, Gallio, M, Gangadharan, Dr, Ganoti, P, Gao, C, Garabatos, C, Garcia Solis, E, Gargiulo, C, Gasik, P, Gauger, Ef, Germain, M, Gheata, A, Gheata, M, Ghosh, P, Ghosh, Sk, Gianotti, P, Giubellino, P, Giubilato, P, Gladysz Dziadus, E, Glassel, P, Coral, Dmg, Ramirez, Ag, Gonzalez, V, Gonzalez Zamora, P, Gorbunov, S, Gorlich, L, Gotovac, S, Grabski, V, Grachov, Oa, Graczykowski, Lk, Graham, Kl, Grelli, A, Grigoras, A, Grigoras, C, Grigoriev, V, Grigoryan, A, Grigoryan, S, Grinyov, B, Grion, N, Gronefeld, Jm, Grosse Oetringhaus JF, Grossiord, Jy, Grosso, R, Guber, F, Guernane, R, Guerzoni, B, Gulbrandsen, K, Gunji, T, Gupta, A, Gupta, R, Haake, R, Haaland, O, Hadjidakis, C, Haiduc, M, Hamagaki, H, Hamar, G, Harris, Jw, Harton, A, Hatzifotiadou, D, Hayashi, S, Heckel, St, Heide, M, Helstrup, H, Herghelegiu, A, Corral, Gh, Hess, Ba, Hetland, Kf, Hillemanns, H, Hippolyte, B, Hosokawa, R, Hristov, P, Huang, M, Humanic, Tj, Hussain, N, Hussain, T, Hutter, D, Hwang, Ds, Ilkaev, R, Inaba, M, Innocenti, Gm, Ippolitov, M, Irfan, M, Ivanov, M, Ivanov, V, Izucheev, V, Jacobs, Pm, Jadhav, Mb, Jadlovska, S, Jadlovsky, J, Jahnke, C, Jakubowska, Mj, Jang, Hj, Janik, Ma, Jayarathna, Phsy, Jena, C, Jena, S, Bustamante, Rtj, Jones, Pg, Jung, H, Jusko, A, Kalinak, P, Kalweit, A, Kamin, J, Kang, Jh, Kaplin, V, Kar, S, Uysal, Ak, Karavichev, O, Karavicheva, T, Karayan, L, Karpechev, E, Kebschull, U, Keidel, R, Keijdener, Dld, Keil, M, Khan, Mm, Khan, P, Khan, Sa, Khanzadeev, A, Kharlov, Y, Kileng, B, Kim, Dw, Kim, Dj, Kim, D, Kim, H, Kim, Js, Kim, M, Kim, S, Kim, T, Kirsch, S, Kisel, I, Kiselev, S, Kisiel, A, Kiss, G, Klay, Jl, Klein, C, Klein, J, Klein Bosing, C, Klewin, S, Kluge, A, Knichel, Ml, Knospe, Ag, Kobayashi, T, 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, Gk, Kralik, I, Kravcakova, A, Kretz, M, Krivda, M, Krizek, F, Kryshen, E, Krzewicki, M, Kubera, Am, Kucera, V, Kuhn, C, Kuijer, Pg, Kumar, A, Kumar, J, Kumar, L, Kumar, S, Kurashvili, P, Kurepin, A, Kurepin, Ab, Kuryakin, A, Kweon, Mj, Kwon, Y, La Pointe SL, LA ROCCA, Paola, de Guevara PL, Fernandes, Cl, Lakomov, I, Langoy, R, Lara, C, Lardeux, A, Lattuca, A, Laudi, E, Lea, R, Leardini, L, Lee, Gr, Lee, S, Lehas, F, Lemmon, Rc, Lenti, V, Leogrande, E, Monzon, Il, Vargas, Hl, Leoncino, M, Levai, P, Li, S, Li, X, Lien, J, Lietava, R, Lindal, S, Lindenstruth, V, Lippmann, C, Lisa, Ma, Ljunggren, Hm, Lodato, Df, Loenne, Pi, Loginov, V, Loizides, C, Lopez, X, Torres, El, Lowe, A, Luettig, P, Lunardon, M, Luparello, G, Maevskaya, A, Mager, M, Mahajan, S, Mahmood, Sm, Maire, A, Majka, Rd, Malaev, M, Cervantes, Im, Malinina, L, Mal'Kevich, D, Malzacher, P, Mamonov, A, Manko, V, Manso, F, Manzari, V, Marchisone, M, Mares, J, Margagliotti, Gv, Margotti, A, Margutti, J, Marin, A, Markert, C, Marquard, M, Martin, Na, Blanco, Jm, Martinengo, P, Martinez, Mi, Garcia, Gm, Pedreira, Mm, Mas, A, Masciocchi, S, Masera, M, Masoni, A, Massacrier, L, Mastroserio, A, Matyja, A, Mayer, C, Mazer, J, Mazzoni, Ma, Mcdonald, D, Meddi, F, Melikyan, Y, Menchaca Rocha, A, Meninno, E, Perez, Jm, Meres, M, Miake, Y, Mieskolainen, Mm, Mikhaylov, K, Milano, L, Milosevic, J, Minervini, Lm, Mischke, A, Mishra, An, Miskowiec, D, Mitra, J, Mitu, Cm, Mohammadi, N, Mohanty, B, Molnar, L, Zetina, Lm, Montes, E, De Godoy DAM, Moreno, Lap, Moretto, S, Morreale, A, Morsch, A, Muccifora, V, Mudnic, E, Muhlheim, D, Muhuri, S, Mukherjee, M, Mulligan, Jd, Munhoz, Mg, Munzer, Rh, Murray, S, Musa, L, Musinsky, J, Naik, B, Nair, R, Nandi, Bk, Nania, R, Nappi, E, Naru, Mu, da Luz HN, Nattrass, C, Nayak, K, Nayak, Tk, Nazarenko, S, Nedosekin, A, Nellen, L, Ng, F, Nicassio, M, Niculescu, M, Niedziela, J, Nielsen, Bs, Nikolaev, S, Nikulin, S, Nikulin, V, Noferini, F, Nomokonov, P, Nooren, G, Noris, Jcc, Norman, J, Nyanin, A, Nystrand, J, Oeschler, H, Oh, S, Oh, Sk, Ohlson, A, Okatan, A, Okubo, T, Olah, L, Oleniacz, J, Da Silva ACO, Oliver, Mh, Onderwaater, J, Oppedisano, C, Orava, R, Velasquez, Ao, Oskarsson, A, Otwinowski, J, Oyama, K, Ozdemir, M, Pachmayer, Y, Pagano, P, Paic, G, Pal, Sk, Pan, J, Pandey, Ak, Papcun, P, Papikyan, V, Pappalardo, Gs, Pareek, P, Park, Wj, Parmar, S, Passfeld, A, Paticchio, V, Patra, Rn, Paul, B, Peitzmann, T, Da Costa HP, De Oliveira EP, Peresunko, D, Lara, Cep, Lezama, Ep, Peskov, V, Pestov, Y, Petracek, V, Petrov, V, Petrovici, M, Petta, Catia Maria Annunziata, Piano, S, Pikna, M, Pillot, P, Pinazza, O, Pinsky, L, Piyarathna, Db, Ploskon, M, Planinic, M, Pluta, J, Pochybova, S, Podesta Lerma PLM, Poghosyan, Mg, Polichtchouk, B, Poljak, N, Poonsawat, W, Pop, A, Porteboeuf Houssais, S, Porter, J, Pospisil, J, Prasad, Sk, Preghenella, R, Prino, F, Pruneau, Ca, 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, Ss, Rascanu, Bt, Rathee, D, Read, Kf, Redlich, K, Reed, Rj, Rehman, A, Reichelt, P, Reidt, F, Ren, X, Renfordt, R, Reolon, Ar, Reshetin, A, Revol, Jp, Reygers, K, Riabov, V, Ricci, Ra, Richert, T, Richter, M, Riedler, P, Riegler, W, Riggi, Francesco, Ristea, C, Rocco, E, Cahuantzi, Mr, Manso, Ar, Roed, K, Rogochaya, E, Rohr, D, Rohrich, D, Romita, R, Ronchetti, F, Ronflette, L, Rosnet, P, Rossi, A, Roukoutakis, F, Roy, A, Roy, C, Roy, P, Montero, Ajr, Rui, R, Russo, R, Ryabinkin, E, Ryabov, Y, 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Zyzak, M.
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Popis: The production of prompt D-s(+) mesons was measured for the first time in collisions of heavy nuclei with the ALICE detector at the LHC. The analysis was performed on a data sample of Pb-Pb collisions at a centre-of-mass energy per nucleon pair, root s(NN), of 2.76 TeV in two different centrality classes, namely 0-10% and 20-50%. D-s(+) mesons and their antiparticles were reconstructed at mid-rapidity from their hadronic decay channel D-s(+) -> phi pi(+), with phi -> K-K+, in the transverse momentum intervals 4 < p(T) < 12 GeV/c and 6 < p(T) < 12 GeV/c for the 0-10% and 20-50% centrality classes, respectively. The nuclear modi fication factor R-AA was computed by comparing the p(T)-differential production yields in Pb-Pb collisions to those in proton-proton (pp) collisions at the same energy. This pp reference was obtained using the cross section measured at root s = 7 TeV and scaled to root s = 2.76TeV. The R-AA of D-s(+) mesons was compared to that of non-strange D mesons in the 10% most central Pb-Pb collisions. At high p(T) (8 < p(T) < 12 GeV/c) a suppression of the D-s(+)-meson yield by a factor of about three, compatible within uncertainties with that of non-strange D mesons, is observed. At lower p(T) (4 < p(T) < 8 GeV/c) the values of the D-s(+)-meson R-AA are larger than those of non-strange D mesons, although compatible within uncertainties. The production ratios D-s(+)/D-0 and D-s(+)/D+ were also measured in Pb-Pb collisions and compared to their values in proton-proton collisions.
Databáze: OpenAIRE