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Femtoscopy of pp collisions at $\sqrt{s}$=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations

Authors :
Aamodt, K.
Abrahantes Quintana, A.
Adamova, D.
Adare, A.M.
Aggarwal, M.M.
Aglieri Rinella, G.
Agocs, A.G.
Aguilar Salazar, S.
Ahammed, Z.
Ahmad, N.
Masoodi, A.Ahmad
Ahn, S.U.
Akindinov, A.
Aleksandrov, D.
Alessandro, B.
Molina, R.Alfaro
Alici, A.
Alkin, A.
Almaraz Avina, E.
Alt, T.
Altini, V.
Altinpinar, S.
Altsybeev, I.
Andrei, C.
Andronic, A.
Anguelov, V.
Anson, C.
Anticic, T.
Antinori, F.
Antonioli, P.
Aphecetche, L.
Appelshauser, H.
Arbor, N.
Arcelli, S.
Arend, A.
Armesto, N.
Arnaldi, R.
Aronsson, T.
Arsene, I.C.
Asryan, A.
Augustinus, A.
Averbeck, R.
Awes, T.C.
Aysto, J.
Azmi, M.D.
Bach, M.
Badala, A.
Baek, Y.W.
Bagnasco, S.
Bailhache, R.
Bala, R.
Ferroli, R.Baldini
Baldisseri, A.
Baldit, A.
Ban, J.
Barbera, R.
Barile, F.
Barnafoldi, G.G.
Barnby, L.S.
Barret, V.
Bartke, J.
Basile, M.
Bastid, N.
Bathen, B.
Batigne, G.
Batyunya, B.
Baumann, C.
Bearden, I.G.
Beck, H.
Belikov, I.
Bellini, F.
Bellwied, R.
Belmont-Moreno, E.
Beole, S.
Berceanu, I.
Bercuci, A.
Berdermann, E.
Berdnikov, Y.
Betev, L.
Bhasin, A.
Bhati, A.K.
Bianchi, L.
Bianchi, N.
Bianchin, C.
Bielcik, J.
Bielcikova, J.
Bilandzic, A.
Biolcati, E.
Blanc, A.
Blanco, F.
Blau, D.
Blume, C.
Boccioli, M.
Bock, N.
Bogdanov, A.
Boggild, H.
Bogolyubsky, M.
Boldizsar, L.
Bombara, M.
Bombonati, C.
Book, J.
Borel, H.
Bortolin, C.
Bose, S.
Bossu, F.
Botje, M.
Bottger, S.
Boyer, B.
Braun-Munzinger, P.
Bravina, L.
Bregant, M.
Breitner, T.
Broz, M.
Brun, R.
Bruna, E.
Bruno, G.E.
Budnikov, D.
Buesching, H.
Busch, O.
Buthelezi, Z.
Caffarri, D.
Cai, X.
Caines, H.
Calvo Villar, E.
Camerini, P.
Canoa Roman, V.
Cara Romeo, G.
Carena, F.
Carena, W.
Carminati, F.
Casanova Diaz, A.
Caselle, M.
Castillo Castellanos, J.
Catanescu, V.
Cavicchioli, C.
Cerello, P.
Chang, B.
Chapeland, S.
Charvet, J.L.
Chattopadhyay, S.
Cherney, M.
Cheshkov, C.
Cheynis, B.
Chiavassa, E.
Chibante Barroso, V.
Chinellato, D.D.
Chochula, P.
Chojnacki, M.
Christakoglou, P.
Christensen, C.H.
Christiansen, P.
Chujo, T.
Cicalo, C.
Cifarelli, L.
Cindolo, F.
Cleymans, J.
Coccetti, F.
Coffin, J.P.
Coli, S.
Conesa Balbastre, G.
Conesa del Valle, Z.
Constantin, P.
Contin, G.
Contreras, J.G.
Cormier, T.M.
Corrales Morales, Y.
Cortes Maldonado, I.
Cortese, P.
Cosentino, M.R.
Costa, F.
Cotallo, M.E.
Crescio, E.
Crochet, P.
Cuautle, E.
Cunqueiro, L.
Erasmo, G.D.
Dainese, A.
Dalsgaard, H.H.
Danu, A.
Das, D.
Das, I.
Dash, A.
Dash, S.
De, S.
De Azevedo Moregula, A.
de Barros, G.O.V.
De Caro, A.
De Cataldo, G.
de Cuveland, J.
De Falco, A.
De Gruttola, D.
De Marco, N.
De Pasquale, S.
De Remigis, R.
de Rooij, R.
Delagrange, H.
Delgado Mercado, Y.
Dellacasa, G.
Deloff, A.
Demanov, V.
Denes, E.
Deppman, A.
Di Bari, D.
Di Giglio, C.
Di Liberto, S.
Di Mauro, A.
Di Nezza, P.
Dietel, T.
Divia, R.
Djuvsland, O.
Dobrin, A.
Dobrowolski, T.
Dominguez, I.
Donigus, B.
Dordic, O.
Driga, O.
Dubey, A.K.
Ducroux, L.
Dupieux, P.
Dutta Majumdar, A.K.
Dutta Majumdar, M.R.
Elia, D.
Emschermann, D.
Engel, H.
Erdal, H.A.
Espagnon, B.
Estienne, M.
Esumi, S.
Evans, D.
Evrard, S.
Eyyubova, G.
Fabjan, C.W.
Fabris, D.
Faivre, J.
Falchieri, D.
Fantoni, A.
Fasel, M.
Fearick, R.
Fedunov, A.
Fehlker, D.
Fekete, V.
Felea, D.
Feofilov, G.
Fernandez Tellez, A.
Ferretti, A.
Ferretti, R.
Figueredo, M.A.S.
Filchagin, S.
Fini, R.
Finogeev, D.
Fionda, F.M.
Fiore, E.M.
Floris, M.
Foertsch, S.
Foka, P.
Fokin, S.
Fragiacomo, E.
Fragkiadakis, M.
Frankenfeld, U.
Fuchs, U.
Furano, F.
Furget, C.
Fusco Girard, M.
Gaardhoje, J.J.
Gadrat, S.
Gagliardi, M.
Gago, A.
Gallio, M.
Ganoti, P.
Garabatos, C.
Gemme, R.
Gerhard, J.
Germain, M.
Geuna, C.
Gheata, A.
Gheata, M.
Ghidini, B.
Ghosh, P.
Girard, M.R.
Giraudo, G.
Giubellino, P.
Gladysz-Dziadus, E.
Glassel, P.
Gomez, R.
Gonzalez-Trueba, L.H.
Gonzalez-Zamora, P.
Gonzalez Santos, H.
Gorbunov, S.
Gotovac, S.
Grabski, V.
Graczykowski, L.K.
Grajcarek, R.
Grelli, A.
Grigoras, A.
Grigoras, C.
Grigoriev, V.
Grigoryan, A.
Grigoryan, S.
Grinyov, B.
Grion, N.
Gros, P.
Grosse-Oetringhaus, J.F.
Grossiord, J.Y.
Grosso, R.
Guber, F.
Guernane, R.
Guerra Gutierrez, C.
Guerzoni, B.
Gulbrandsen, K.
Gulkanyan, H.
Gunji, T.
Gupta, A.
Gupta, R.
Gutbrod, H.
Haaland, O.
Hadjidakis, C.
Haiduc, M.
Hamagaki, H.
Hamar, G.
Harris, J.W.
Hartig, M.
Hasch, D.
Hasegan, D.
Hatzifotiadou, D.
Hayrapetyan, A.
Heide, M.
Heinz, M.
Helstrup, H.
Herghelegiu, A.
Hernandez, C.
Herrera Corral, G.
Herrmann, N.
Hetland, K.F.
Hicks, B.
Hille, P.T.
Hippolyte, B.
Horaguchi, T.
Hori, Y.
Hristov, P.
Hrivnacova, I.
Huang, M.
Huber, S.
Humanic, T.J.
Hwang, D.S.
Ichou, R.
Ilkaev, R.
Ilkiv, I.
Inaba, M.
Incani, E.
Innocenti, G.M.
Innocenti, P.G.
Ippolitov, M.
Irfan, M.
Ivan, C.
Ivanov, A.
Ivanov, M.
Ivanov, V.
Jacholkowski, A.
Jacobs, P.M.
Jancurova, L.
Jangal, S.
Janik, M.A.
Janik, R.
Jayarathna, S.P.
Jena, S.
Jirden, L.
Jones, G.T.
Jones, P.G.
Jovanovic, P.
Jung, H.
Jung, W.
Jusko, A.
Kalcher, S.
Kalinak, P.
Kalisky, M.
Kalliokoski, T.
Kalweit, A.
Kamermans, R.
Kanaki, K.
Kang, E.
Kang, J.H.
Kaplin, V.
Karavichev, O.
Karavicheva, T.
Karpechev, E.
Kazantsev, A.
Kebschull, U.
Keidel, R.
Khan, M.M.
Khanzadeev, A.
Kharlov, Y.
Kileng, B.
Kim, D.J.
Kim, D.S.
Kim, D.W.
Kim, H.N.
Kim, J.H.
Kim, J.S.
Kim, M.
Kim, S.
Kim, S.H.
Kirsch, S.
Kisel, I.
Kiselev, S.
Kisiel, A.
Klay, J.L.
Klein, J.
Klein-Bosing, C.
Kliemant, M.
Klovning, A.
Kluge, A.
Knichel, M.L.
Koch, K.
Kohler, M.K.
Kolevatov, R.
Kolojvari, A.
Kondratiev, V.
Kondratyeva, N.
Konevskih, A.
Kornas, E.
Kottachchi Kankanamge Don, C.
Kour, R.
Kowalski, M.
Kox, S.
Koyithatta Meethaleveedu, G.
Kozlov, K.
Kral, J.
Kralik, I.
Kramer, F.
Kraus, I.
Krawutschke, T.
Kretz, M.
Krivda, M.
Krumbhorn, D.
Krus, M.
Kryshen, E.
Krzewicki, M.
Kucheriaev, Y.
Kuhn, C.
Kuijer, P.G.
Kurashvili, P.
Kurepin, A.
Kurepin, A.B.
Kuryakin, A.
Kushpil, S.
Kushpil, V.
Kweon, M.J.
Kwon, Y.
La Rocca, P.
Ladron de Guevara, P.
Lafage, V.
Lara, C.
Larsen, D.T.
Lazzeroni, C.
Le Bornec, Y.
Lea, R.
Lee, K.S.
Lee, S.C.
Lefevre, F.
Lehnert, J.
Leistam, L.
Lenhardt, M.
Lenti, V.
Leon Monzon, I.
Leon Vargas, H.
Levai, P.
Li, X.
Lietava, R.
Lindal, S.
Lindenstruth, V.
Lippmann, C.
Lisa, M.A.
Liu, L.
Loggins, V.R.
Loginov, V.
Lohn, S.
Lohner, D.
Loizides, C.
Lopez, X.
Lopez Noriega, M.
Lopez Torres, E.
Lovhoiden, G.
Lu, X.G.
Luettig, P.
Lunardon, M.
Luparello, G.
Luquin, L.
Luzzi, C.
Ma, K.
Ma, R.
Madagodahettige-Don, D.M.
Maevskaya, A.
Mager, M.
Mahapatra, D.P.
Maire, A.
Malaev, M.
Maldonado Cervantes, I.
Malinina, L.
Mal'Kevich, D.
Malzacher, P.
Mamonov, A.
Manceau, L.
Mangotra, L.
Manko, V.
Manso, F.
Manzari, V.
Mao, Y.
Mares, J.
Margagliotti, G.V.
Margotti, A.
Marin, A.
Martashvili, I.
Martinengo, P.
Martinez, M.I.
Martinez Davalos, A.
Martinez Garcia, G.
Martynov, Y.
Mas, A.
Masciocchi, S.
Masera, M.
Masoni, A.
Massacrier, L.
Mastromarco, M.
Mastroserio, A.
Matthews, Z.L.
Matyja, A.
Mayani, D.
Mazza, G.
Mazzoni, M.A.
Meddi, F.
Menchaca-Rocha, A.
Mendez Lorenzo, P.
Mercado Perez, J.
Mereu, P.
Miake, Y.
Midori, J.
Milano, L.
Milosevic, J.
Mischke, A.
Miskowiec, D.
Mitu, C.
Mlynarz, J.
Mohanty, B.
Molnar, L.
Montano Zetina, L.
Monteno, M.
Montes, E.
Morando, M.
Moreira De Godoy, D.A.
Moretto, S.
Morsch, A.
Muccifora, V.
Mudnic, E.
Muller, H.
Muhuri, S.
Munhoz, M.G.
Munoz, J.
Musa, L.
Musso, A.
Nandi, B.K.
Nania, R.
Nappi, E.
Nattrass, C.
Navach, F.
Navin, S.
Nayak, T.K.
Nazarenko, S.
Nazarov, G.
Nedosekin, A.
Nendaz, F.
Newby, J.
Nicassio, M.
Nielsen, B.S.
Nikolaev, S.
Nikolic, V.
Nikulin, S.
Nikulin, V.
Nilsen, B.S.
Nilsson, M.S.
Noferini, F.
Nooren, G.
Novitzky, N.
Nyanin, A.
Nyatha, A.
Nygaard, C.
Nystrand, J.
Obayashi, H.
Ochirov, A.
Oeschler, H.
Oh, S.K.
Oleniacz, J.
Oppedisano, C.
Ortiz Velasquez, A.
Ortona, G.
Oskarsson, A.
Ostrowski, P.
Otterlund, I.
Otwinowski, J.
Ovrebekk, G.
Oyama, K.
Ozawa, K.
Pachmayer, Y.
Pachr, M.
Padilla, F.
Pagano, P.
Paic, G.
Painke, F.
Pajares, C.
Pal, S.
Pal, S.K.
Palaha, A.
Palmeri, A.
Pappalardo, G.S.
Park, W.J.
Paticchio, V.
Pavlinov, A.
Pawlak, T.
Peitzmann, T.
Peresunko, D.
Perez Lara, C.E.
Perini, D.
Perrino, D.
Peryt, W.
Pesci, A.
Peskov, V.
Pestov, Y.
Peters, A.J.
Petracek, V.
Petris, M.
Petrov, P.
Petrovici, M.
Petta, C.
Piano, S.
Piccotti, A.
Pikna, M.
Pillot, P.
Pinazza, O.
Pinsky, L.
Pitz, N.
Piuz, F.
Piyarathna, D.B.
Platt, R.
Ploskon, M.
Pluta, J.
Pocheptsov, T.
Pochybova, S.
Podesta-Lerma, P.L.M.
Poghosyan, M.G.
Polak, K.
Polichtchouk, B.
Pop, A.
Pospisil, V.
Potukuchi, B.
Prasad, S.K.
Preghenella, R.
Prino, F.
Pruneau, C.A.
Pshenichnov, I.
Puddu, G.
Pulvirenti, A.
Punin, V.
Putis, M.
Putschke, J.
Quercigh, E.
Qvigstad, H.
Rachevski, A.
Rademakers, A.
Rademakers, O.
Radomski, S.
Raiha, T.S.
Rak, J.
Rakotozafindrabe, A.
Ramello, L.
Ramirez Reyes, A.
Rammler, M.
Raniwala, R.
Raniwala, S.
Rasanen, S.S.
Read, K.F.
Real, J.S.
Redlich, K.
Renfordt, R.
Reolon, A.R.
Reshetin, A.
Rettig, F.
Revol, J.P.
Reygers, K.
Ricaud, H.
Riccati, L.
Ricci, R.A.
Richter, M.
Riedler, P.
Riegler, W.
Riggi, F.
Rivetti, A.
Rodriguez Cahuantzi, M.
Rohr, D.
Rohrich, D.
Romita, R.
Ronchetti, F.
Rosinsky, P.
Rosnet, P.
Rossegger, S.
Rossi, A.
Roukoutakis, F.
Rousseau, S.
Roy, C.
Roy, P.
Rubio Montero, A.J.
Rui, R.
Rusanov, I.
Ryabinkin, E.
Rybicki, A.
Sadovsky, S.
Safarik, K.
Sahoo, R.
Sahu, P.K.
Saiz, P.
Sakai, S.
Sakata, D.
Salgado, C.A.
Samanta, T.
Sambyal, S.
Samsonov, V.
Sandor, L.
Sandoval, A.
Sano, M.
Sano, S.
Santo, R.
Santoro, R.
Sarkamo, J.
Saturnini, P.
Scapparone, E.
Scarlassara, F.
Scharenberg, R.P.
Schiaua, C.
Schicker, R.
Schmidt, C.
Schmidt, H.R.
Schreiner, S.
Schuchmann, S.
Schukraft, J.
Schutz, Y.
Schwarz, K.
Schweda, K.
Scioli, G.
Scomparin, E.
Scott, P.A.
Scott, R.
Segato, G.
Senyukov, S.
Seo, J.
Serci, S.
Serradilla, E.
Sevcenco, A.
Shabratova, G.
Shahoyan, R.
Sharma, N.
Sharma, S.
Shigaki, K.
Shimomura, M.
Shtejer, K.
Sibiriak, Y.
Siciliano, M.
Sicking, E.
Siemiarczuk, T.
Silenzi, A.
Silvermyr, D.
Simonetti, G.
Singaraju, R.
Singh, R.
Sinha, B.C.
Sinha, T.
Sitar, B.
Sitta, M.
Skaali, T.B.
Skjerdal, K.
Smakal, R.
Smirnov, N.
Snellings, R.
Sogaard, C.
Soloviev, A.
Soltz, R.
Son, H.
Song, M.
Soos, C.
Soramel, F.
Spyropoulou-Stassinaki, M.
Srivastava, B.K.
Stachel, J.
Stan, I.
Stefanek, G.
Stefanini, G.
Steinbeck, T.
Stenlund, E.
Steyn, G.
Stocco, D.
Stock, R.
Stolpovskiy, M.
Strmen, P.
Suaide, A.A.P.
Subieta Vasquez, M.A.
Sugitate, T.
Suire, C.
Sumbera, M.
Susa, T.
Swoboda, D.
Symons, T.J.M.
Szanto de Toledo, A.
Szarka, I.
Szostak, A.
Tagridis, C.
Takahashi, J.
J.Tapia Takaki, D.
Tauro, A.
Tavlet, M.
Tejeda Munoz, G.
Telesca, A.
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Thader, J.
Thomas, D.
Thomas, J.H.
Tieulent, R.
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Torii, H.
Toscano, L.
Tosello, F.
Traczyk, T.
Truesdale, D.
Trzaska, W.H.
Tumkin, A.
Turrisi, R.
Turvey, A.J.
Tveter, T.S.
Ulery, J.
Ullaland, K.
Uras, A.
Urban, J.
Urciuoli, G.M.
Usai, G.L.
Vacchi, A.
Vala, M.
Valencia Palomo, L.
Vallero, S.
van der Kolk, N.
van Leeuwen, M.
Vande Vyvre, P.
Vannucci, L.
Vargas, A.
Varma, R.
Vasileiou, M.
Vasiliev, A.
Vechernin, V.
Venaruzzo, M.
Vercellin, E.
Vergara, S.
Vernet, R.
Verweij, M.
Vickovic, L.
Viesti, G.
Vikhlyantsev, O.
Vilakazi, Z.
Villalobos Baillie, O.
Vinogradov, A.
Vinogradov, L.
Vinogradov, Y.
Virgili, T.
Viyogi, Y.P.
Vodopyanov, A.
Voloshin, K.
Voloshin, S.
Volpe, G.
von Haller, B.
Vranic, D.
Vrlakova, J.
Vulpescu, B.
Wagner, B.
Wagner, V.
Wan, R.
Wang, D.
Wang, Y.
Watanabe, K.
Wessels, J.P.
Westerhoff, U.
Wiechula, J.
Wikne, J.
Wilde, M.
Wilk, A.
Wilk, G.
Williams, M.C.S.
Windelband, B.
Yang, H.
Yasnopolskiy, S.
Yi, J.
Yin, Z.
Yokoyama, H.
Yoo, I.K.
Yuan, X.
Yushmanov, I.
Zabrodin, E.
Zampolli, C.
Zaporozhets, S.
Zarochentsev, A.
Zavada, P.
Zbroszczyk, H.
Zelnicek, P.
Zenin, A.
Zgura, I.
Zhalov, M.
Zhang, X.
Zhou, D.
Zhu, X.
Zichichi, A.
Zinovjev, G.
Zoccarato, Y.
Zynovyev, M.
Universidade Estadual de Campinas
Laboratoire de Physique Corpusculaire
Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC)
Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire SUBATECH Nantes (SUBATECH)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Laboratoire de Physique Subatomique et de Cosmologie (LPSC)
Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)
Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
ALICE
Institut de Physique des 2 Infinis de Lyon (IP2I Lyon)
Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Institut de Physique Nucléaire de Lyon (IPNL)
Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Centre de Calcul de l'IN2P3 (CC-IN2P3)
Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Source :
Web of Science, RI, UNICAMP, Physical Review D. Amer Physical Soc, v. 84, n. 11, 2011., CERN Document Server, LAReferencia-Red Federada de Repositorios Institucionales de Publicaciones Científicas Latinoamericanas, OpenAIRE, arXiv.org e-Print Archive, Physical Review D, Physical Review D, American Physical Society, 2011, 84, pp.112004. ⟨10.1103/PhysRevD.84.112004⟩, Physical Review D, 2011, 84, pp.112004. ⟨10.1103/PhysRevD.84.112004⟩
Publication Year :
2011
Publisher :
Amer Physical Soc, 2011.

Abstract

We report on the high statistics two-pion correlation functions from pp collisions at $\sqrt{s}=0.9$ TeV and $\sqrt{s}$=7 TeV, measured by the ALICE experiment at the Large Hadron Collider. The correlation functions as well as the extracted source radii scale with event multiplicity and pair momentum. When analyzed in the same multiplicity and pair transverse momentum range, the correlation is similar at the two collision energies. A three-dimensional femtoscopic analysis shows an increase of the emission zone with increasing event multiplicity as well as decreasing homogeneity lengths with increasing transverse momentum. The latter trend gets more pronounced as multiplicity increases. This suggests the development of space-momentum correlations, at least for collisions producing a high multiplicity of particles. We consider these trends in the context of previous femtoscopic studies in high-energy hadron and heavy-ion collisions, and discuss possible underlying physics mechanisms. Detailed analysis of the correlation reveals an exponential shape in the outward and longitudinal directions, while the sideward remains a Gaussian. This is interpreted as a result of a significant contribution of strongly decaying resonances to the emission region shape. Significant non-femtoscopic correlations are observed, and are argued to be the consequence of "mini-jet"-like structures extending to low $p_{\rm T}$. They are well reproduced by the Monte-Carlo generators and seen also in $\pi^+\pi^-$ correlations.<br />Comment: 21 pages, 18 captioned figures, 5 tables, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3872

Subjects

Subjects :
Pion Interferometry
High Energy Physics - Experiment (hep-ex)
Heavy-ion Collisions
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
FOS: Physical sciences
Nuclear Experiment (nucl-ex)
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Nuclear Experiment
Particle Physics - Experiment
Energies
High Energy Physics - Experiment

Details

Language :
English
ISSN :
15507998 and 15502368
Database :
OpenAIRE
Journal :
Web of Science, RI, UNICAMP, Physical Review D. Amer Physical Soc, v. 84, n. 11, 2011., CERN Document Server, LAReferencia-Red Federada de Repositorios Institucionales de Publicaciones Científicas Latinoamericanas, OpenAIRE, arXiv.org e-Print Archive, Physical Review D, Physical Review D, American Physical Society, 2011, 84, pp.112004. ⟨10.1103/PhysRevD.84.112004⟩, Physical Review D, 2011, 84, pp.112004. ⟨10.1103/PhysRevD.84.112004⟩
Accession number :
edsair.doi.dedup.....73170ec990b7a5ab13d552c6f983a6ac

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