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The multi-strange baryon yields in PbPb collisions have been shown to exhibit an enhancement relative to pp reactions. In this work, Ξ and Ω production rates have been measured with the ALICE experiment as a function of transverse momentum, pT, in pPb collisions at a centre-of-mass energy of √sNN=5.02 TeV. The results cover the kinematic ranges 0.6 GeV/c<7.2 GeV/c and 0.8 GeV/c<5 GeV/c, for Ξ and Ω respectively, in the common rapidity interval -0.5<0. Multi-strange baryons have been identified by reconstructing their weak decays into charged particles. The pT spectra are analysed as a function of event charged-particle multiplicity, which in pPb collisions ranges over one order of magnitude and lies between those observed in pp and PbPb collisions. The measured pT distributions are compared to the expectations from a Blast-Wave model. The parameters which describe the production of lighter hadron species also describe the hyperon spectra in high multiplicity pPb collisions. The yield of hyperons relative to charged pions is studied and compared with results from pp and PbPb collisions. A continuous increase in the yield ratios as a function of multiplicity is observed in pPb data, the values of which range from those measured in minimum bias pp to the ones in PbPb collisions. A statistical model qualitatively describes this multiplicity dependence using a canonical suppression mechanism, in which the small volume causes a relative reduction of hadron production dependent on the strangeness content of the hyperon.
Adam, J., Adamová, D., Aggarwal, M., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2016). Multi-strange baryon production in p–Pb collisions at √sNN=5.02 TeV. PHYSICS LETTERS. SECTION B, 758, 389-401 [10.1016/j.physletb.2016.05.027].
Multi-strange baryon production in p–Pb collisions at √sNN=5.02 TeV
Adam, J.;Adamová, D.;Aggarwal, M. M.;Aglieri Rinella, G.;Agnello, M.;Agrawal, N.;Ahammed, Z.;Ahmad, S.;Ahn, S. U.;Aiola, S.;Akindinov, A.;Alam, S. N.;Aleksandrov, D.;Alessandro, B.;Alexandre, D.;Alfaro Molina, R.;ALICI, ANDREA;Alkin, A.;Almaraz, J. R. M.;Alme, J.;Alt, T.;Altinpinar, S.;Altsybeev, I.;Alves Garcia Prado, C.;Andrei, C.;Andronic, A.;Anguelov, V.;Anielski, J.;Antičić, T.;Antinori, F.;Antonioli, P.;Aphecetche, L.;Appelshäuser, H.;ARCELLI, SILVIA;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.;Balasubramanian, S.;Baldisseri, A.;Baral, R. C.;Barbano, A. M.;Barbera, R.;Barile, F.;Barnaföldi, G. G.;Barnby, L. S.;Barret, V.;Bartalini, P.;Barth, K.;Bartke, J.;Bartsch, E.;BASILE, MAURIZIO;Bastid, N.;Basu, S.;Bathen, B.;Batigne, G.;Batista Camejo, A.;Batyunya, B.;Batzing, P. C.;Bearden, I. G.;Beck, H.;Bedda, C.;Behera, N. K.;Belikov, I.;BELLINI, FRANCESCA;Bello Martinez, H.;Bellwied, R.;Belmont, R.;Belmont Moreno, E.;Belyaev, V.;Benacek, P.;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.;Bielčík, J.;Bielčíková, J.;Bilandzic, A.;Biro, G.;Biswas, R.;Biswas, S.;Bjelogrlic, S.;Blair, J. T.;Blau, D.;Blume, C.;Bock, F.;Bogdanov, A.;Bøggild, H.;Boldizsár, L.;Bombara, M.;Book, J.;Borel, H.;Borissov, A.;Borri, M.;Bossú, F.;Botta, E.;Bourjau, C.;Braun Munzinger, P.;Bregant, M.;Breitner, T.;Broker, T. A.;Browning, T. A.;Broz, M.;Brucken, E. J.;Bruna, E.;Bruno, G. E.;Budnikov, D.;Buesching, H.;Bufalino, S.;Buncic, P.;Busch, O.;Buthelezi, Z.;Butt, J. B.;Buxton, J. T.;Caffarri, D.;Cai, X.;Caines, H.;Calero Diaz, L.;Caliva, A.;Calvo Villar, E.;Camerini, P.;Carena, F.;Carena, W.;CARNESECCHI, FRANCESCA;Castillo Castellanos, J.;Castro, A. J.;Casula, E. A. R.;Ceballos Sanchez, C.;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.;Chibante Barroso, V.;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, LUISA;Cindolo, F.;Cleymans, J.;Colamaria, F.;Colella, D.;Collu, A.;COLOCCI, MANUEL;Conesa Balbastre, G.;Conesa del Valle, Z.;Connors, M. E.;Contreras, J. G.;Cormier, T. M.;Corrales Morales, Y.;Cortés Maldonado, I.;Cortese, P.;Cosentino, M. R.;Costa, F.;Crochet, P.;Cruz Albino, R.;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.;Dénes, E.;Deplano, C.;Dhankher, P.;Di Bari, D.;Di Mauro, A.;Di Nezza, P.;Diaz Corchero, M. A.;Dietel, T.;Dillenseger, P.;Divià, R.;Djuvsland, Ø;Dobrin, A.;Domenicis Gimenez, D.;Dönigus, B.;Dordic, O.;Drozhzhova, T.;Dubey, A. K.;Dubla, A.;Ducroux, L.;Dupieux, P.;Ehlers, R. J.;Elia, D.;Endress, E.;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.;Fernández Téllez, 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.;Fleck, M. G.;Floris, M.;Foertsch, S.;Foka, P.;Fokin, S.;Fragiacomo, E.;Francescon, A.;Frankenfeld, U.;Fronze, G. G.;Fuchs, U.;Furget, C.;Furs, A.;Fusco Girard, M.;Gaardhøje, J. J.;Gagliardi, M.;Gago, A. M.;Gallio, M.;Gangadharan, D. R.;Ganoti, P.;Gao, C.;Garabatos, C.;Garcia Solis, E.;Gargiulo, C.;Gasik, P.;Gauger, E. F.;Germain, M.;Gheata, A.;Gheata, M.;Ghosh, P.;Ghosh, S. K.;Gianotti, P.;Giubellino, P.;Giubilato, P.;Gladysz Dziadus, E.;Glässel, P.;Goméz Coral, D. M.;Gomez Ramirez, A.;Gonzalez, V.;González Zamora, P.;Gorbunov, S.;Görlich, L.;Gotovac, S.;Grabski, V.;Grachov, O. A.;Graczykowski, L. K.;Graham, K. L.;Grelli, A.;Grigoras, A.;Grigoras, C.;Grigoriev, V.;Grigoryan, A.;Grigoryan, S.;Grinyov, B.;Grion, N.;Gronefeld, J. M.;Grosse Oetringhaus, J. F.;Grossiord, J. Y.;Grosso, R.;Guber, F.;Guernane, R.;GUERZONI, BARBARA;Gulbrandsen, K.;Gunji, T.;Gupta, A.;Gupta, R.;Haake, R.;Haaland, Ø;Hadjidakis, C.;Haiduc, M.;Hamagaki, H.;Hamar, G.;Hamon, J. C.;Harris, J. W.;Harton, A.;Hatzifotiadou, D.;Hayashi, S.;Heckel, S. T.;Helstrup, H.;Herghelegiu, A.;Herrera Corral, G.;Hess, B. A.;Hetland, K. F.;Hillemanns, H.;Hippolyte, B.;Horak, D.;Hosokawa, R.;Hristov, P.;Huang, M.;Humanic, T. J.;Hussain, N.;Hussain, T.;Hutter, D.;Hwang, D. S.;Ilkaev, R.;Inaba, M.;Incani, E.;Ippolitov, M.;Irfan, M.;Ivanov, M.;Ivanov, V.;Izucheev, V.;JACAZIO, NICOLÒ;Jacobs, P. M.;Jadhav, M. B.;Jadlovska, S.;Jadlovsky, J.;Jahnke, C.;Jakubowska, M. J.;Jang, H. J.;Janik, M. A.;Jayarathna, P. H. S. Y.;Jena, C.;Jena, S.;Jimenez Bustamante, R. T.;Jones, P. G.;Jung, H.;Jusko, A.;Kalinak, P.;Kalweit, A.;Kamin, J.;Kang, J. H.;Kaplin, V.;Kar, S.;Karasu Uysal, A.;Karavichev, O.;Karavicheva, T.;Karayan, L.;Karpechev, E.;Kebschull, U.;Keidel, R.;Keijdener, D. L. D.;Keil, M.;Mohisin Khan, M.;Khan, P.;Khan, S. A.;Khanzadeev, A.;Kharlov, Y.;Kileng, B.;Kim, D. W.;Kim, D. J.;Kim, D.;Kim, H.;Kim, J. S.;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 Bösing, 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.;Koyithatta Meethaleveedu, G.;Králik, I.;Kravčáková, A.;Kretz, M.;Krivda, M.;Krizek, F.;Kryshen, E.;Krzewicki, M.;Kubera, A. M.;Kučera, V.;Kuhn, C.;Kuijer, P. G.;Kumar, A.;Kumar, J.;Kumar, L.;Kumar, S.;Kurashvili, P.;Kurepin, A.;Kurepin, A. B.;Kuryakin, A.;Kweon, M. J.;Kwon, Y.;La Pointe, S. L.;La Rocca, P.;Ladron de Guevara, P.;Lagana Fernandes, C.;Lakomov, I.;Langoy, R.;Lara, C.;Lardeux, A.;Lattuca, A.;Laudi, E.;Lea, R.;Leardini, L.;Lee, G. R.;Lee, S.;Lehas, F.;Lemmon, R. C.;Lenti, V.;Leogrande, E.;León Monzón, I.;León Vargas, H.;Leoncino, M.;Lévai, 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.;López Torres, E.;Lowe, A.;Luettig, P.;Lunardon, M.;Luparello, G.;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.;Marchisone, M.;Mareš, J.;Margagliotti, G. V.;Margotti, A.;Margutti, J.;Marín, A.;Markert, C.;Marquard, M.;Martin, N. A.;Martin Blanco, J.;Martinengo, P.;Martínez, M. I.;Martínez García, G.;Martinez Pedreira, M.;Mas, A.;Masciocchi, S.;Masera, M.;Masoni, A.;Massacrier, L.;Mastroserio, A.;Matyja, A.;Mayer, C.;Mazer, J.;Mazzoni, M. A.;Mcdonald, D.;Meddi, F.;Melikyan, Y.;Menchaca Rocha, A.;Meninno, E.;Mercado Pérez, J.;Meres, M.;Miake, Y.;Mieskolainen, M. M.;Mikhaylov, K.;Milano, L.;Milosevic, J.;Minervini, L. M.;Mischke, A.;Mishra, A. N.;Miśkowiec, D.;Mitra, J.;Mitu, C. M.;Mohammadi, N.;Mohanty, B.;Molnar, L.;Montaño Zetina, L.;Montes, E.;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.;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.;Natal da Luz, H.;Nattrass, C.;Navarro, S. R.;Nayak, K.;Nayak, R.;Nayak, T. K.;Nazarenko, S.;Nedosekin, A.;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.;Oliveira Da Silva, A. C.;Oliver, M. H.;Onderwaater, J.;Oppedisano, C.;Orava, R.;Ortiz Velasquez, A.;Oskarsson, A.;Otwinowski, J.;Oyama, K.;Ozdemir, M.;Pachmayer, Y.;Pagano, P.;Paić, G.;Pal, S. K.;Pan, J.;Pandey, A. K.;Papcun, P.;Papikyan, V.;Pappalardo, G. S.;Pareek, P.;Park, W. J.;Parmar, S.;Passfeld, A.;Paticchio, V.;Patra, R. N.;Paul, B.;Pei, H.;Peitzmann, T.;Pereira Da Costa, H.;Peresunko, D.;Pérez Lara, C. E.;Perez Lezama, E.;Peskov, V.;Pestov, Y.;Petráček, 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.;Płoskoń, M.;Planinic, M.;Pluta, J.;Pochybova, S.;Podesta Lerma, P. L. M.;Poghosyan, M. G.;Polichtchouk, B.;Poljak, N.;Poonsawat, W.;Pop, A.;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.;Räsänen, S. S.;Rascanu, B. T.;Rathee, D.;Read, K. F.;Redlich, K.;Reed, R. J.;Rehman, A.;Reichelt, P.;Reidt, F.;Ren, X.;Renfordt, R.;Reolon, A. R.;Reshetin, A.;Revol, J. P.;Reygers, K.;Riabov, V.;Ricci, R. A.;Richert, T.;Richter, M.;Riedler, P.;Riegler, W.;Riggi, F.;Ristea, C.;Rocco, E.;Rodríguez Cahuantzi, M.;Rodriguez Manso, A.;Røed, K.;Rogochaya, E.;Rohr, D.;Röhrich, D.;Romita, R.;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.;Sadovsky, S.;Šafařík, 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.;Šándor, L.;Sandoval, A.;Sano, M.;Sarkar, D.;Sarma, P.;Scapparone, E.;Scarlassara, F.;Schiaua, C.;Schicker, R.;Schmidt, C.;Schmidt, H. R.;Schuchmann, S.;Schukraft, J.;Schulc, M.;Schuster, T.;Schutz, Y.;Schwarz, K.;Schweda, K.;SCIOLI, GILDA;Scomparin, E.;Scott, R.;Šefčík, 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, M.;Sharma, M.;Sharma, N.;Shigaki, K.;Shtejer, K.;Sibiriak, Y.;Siddhanta, S.;Sielewicz, K. M.;Siemiarczuk, T.;Silvermyr, D.;Silvestre, C.;Simatovic, G.;Simonetti, G.;Singaraju, R.;Singh, R.;Singha, S.;Singhal, V.;Sinha, B. C.;Sinha, T.;Sitar, B.;Sitta, M.;Skaali, T. B.;Slupecki, M.;Smirnov, N.;Snellings, R. J. M.;Snellman, T. W.;Søgaard, C.;Song, J.;Song, M.;Song, Z.;Soramel, F.;Sorensen, S.;de Souza, R. D.;Sozzi, F.;Spacek, M.;Spiriti, E.;Sputowska, I.;Spyropoulou Stassinaki, M.;Stachel, J.;Stan, I.;Stankus, P.;Stefanek, G.;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.;Šumbera, M.;Szabo, A.;Szanto de Toledo, A.;Szarka, I.;Szczepankiewicz, A.;Szymanski, M.;Tabassam, U.;Takahashi, J.;Tambave, G. J.;Tanaka, N.;Tangaro, M. A.;Tarhini, M.;Tariq, M.;Tarzila, M. G.;Tauro, A.;Tejeda Muñoz, G.;Telesca, A.;Terasaki, K.;Terrevoli, C.;Teyssier, B.;Thäder, J.;Thomas, D.;Tieulent, R.;Timmins, A. R.;Toia, A.;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.;Vajzer, M.;Vala, M.;Valencia Palomo, L.;Vallero, S.;Van Der Maarel, J.;Van Hoorne, J. W.;van Leeuwen, M.;Vanat, T.;Vande Vyvre, P.;Varga, D.;Vargas, A.;Vargyas, M.;Varma, R.;Vasileiou, M.;Vasiliev, A.;Vauthier, A.;Vechernin, V.;Veen, A. M.;Veldhoen, M.;Velure, A.;Venaruzzo, M.;Vercellin, E.;Vergara Limón, S.;Vernet, R.;Verweij, M.;Vickovic, L.;Viesti, G.;Viinikainen, J.;Vilakazi, Z.;Villalobos Baillie, O.;Villatoro Tello, A.;Vinogradov, A.;Vinogradov, L.;Vinogradov, Y.;Virgili, T.;Vislavicius, V.;Viyogi, Y. P.;Vodopyanov, A.;Völkl, M. A.;Voloshin, K.;Voloshin, S. A.;Volpe, G.;von Haller, B.;Vorobyev, I.;Vranic, D.;Vrláková, 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.;Wilde, M.;Wilk, G.;Wilkinson, J.;Williams, M. C. S.;Windelband, B.;Winn, M.;Yaldo, C. G.;Yang, H.;Yang, P.;Yano, S.;Yasar, C.;Yin, Z.;Yokoyama, H.;Yoo, I. K.;Yoon, J. H.;Yurchenko, V.;Yushmanov, I.;Zaborowska, A.;Zaccolo, V.;Zaman, A.;Zampolli, C.;Zanoli, H. J. C.;Zaporozhets, S.;Zardoshti, N.;Zarochentsev, A.;Závada, 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.;Zichichi, A.;Zimmermann, A.;Zimmermann, M. B.;Zinovjev, G.;Zyzak, M.
2016
Abstract
The multi-strange baryon yields in PbPb collisions have been shown to exhibit an enhancement relative to pp reactions. In this work, Ξ and Ω production rates have been measured with the ALICE experiment as a function of transverse momentum, pT, in pPb collisions at a centre-of-mass energy of √sNN=5.02 TeV. The results cover the kinematic ranges 0.6 GeV/c<7.2 GeV/c and 0.8 GeV/c<5 GeV/c, for Ξ and Ω respectively, in the common rapidity interval -0.5<0. Multi-strange baryons have been identified by reconstructing their weak decays into charged particles. The pT spectra are analysed as a function of event charged-particle multiplicity, which in pPb collisions ranges over one order of magnitude and lies between those observed in pp and PbPb collisions. The measured pT distributions are compared to the expectations from a Blast-Wave model. The parameters which describe the production of lighter hadron species also describe the hyperon spectra in high multiplicity pPb collisions. The yield of hyperons relative to charged pions is studied and compared with results from pp and PbPb collisions. A continuous increase in the yield ratios as a function of multiplicity is observed in pPb data, the values of which range from those measured in minimum bias pp to the ones in PbPb collisions. A statistical model qualitatively describes this multiplicity dependence using a canonical suppression mechanism, in which the small volume causes a relative reduction of hadron production dependent on the strangeness content of the hyperon.
Adam, J., Adamová, D., Aggarwal, M., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2016). Multi-strange baryon production in p–Pb collisions at √sNN=5.02 TeV. PHYSICS LETTERS. SECTION B, 758, 389-401 [10.1016/j.physletb.2016.05.027].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/596316
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