학술논문

Search for weakly decaying (Lambda n)over-bar and Lambda Lambda exotic bound states in central Pb-Pb collisions at root S-NN=2.76 TeV
Document Type
Author
Adam, J.Adamova, D.Aggarwal, M. M.Rinella, G. AglieriAgnello, M.Agrawal, N.Ahammed, Z.Ahmed, I.Ahn, S. U.Aimo, I.Aiola, S.Ajaz, M.Akindinov, A.Alam, S. N.Aleksandrov, D.Alessandro, B.Alexandre, D.Alfaro Molina, R.Alici, A.Alkin, A.Alme, J.Alt, T.Altinpinar, S.Altsybeev, I.Alves Garcia Prado, C.Andrei, C.Andronic, A.Anguelov, V.Anielski, J.Anticic, T.Antinori, F.Antonioli, P.Aphecetche, L.Appelshaeuser, H.Arcelli, S.Armesto, N.Arnaldi, R.Aronsson, T.Arsene, I. C.Arslandok, M.Augustinus, A.Averbeck, R.Azmi, M. D.Bach, M.Badala, A.Baek, Y. W.Bagnasco, S.Bailhache, R.Bala, R.Baldisseri, A.Ball, M.Pedrosa, F. Baltasar Dos SantosBaral, R. C.Barbano, A. M.Barbera, R.Barile, F.Barnafoeldi, G. G.Barnby, L. S.Barret, V.Bartalini, P.Bartke, J.Bartsch, E.Basile, M.Bastid, N.Basu, S.Bathen, B.Batigne, G.Camejo, A. BatistaBatyunya, B.Batzing, P. C.Bearden, I. G.Beck, H.Bedda, C.Behera, N. K.Belikov, I.Bellini, F.Bello Martinez, H.Bellwied, R.Belmont, R.Belmont-Moreno, 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.Biswas, S.Bjelogrlic, S.Blanco, F.Blau, D.Blume, C.Bock, F.Bogdanov, A.Boggild, H.Boldizsar, L.Bombara, M.Book, J.Borel, H.Borissov, A.Borri, M.Bossu, F.Botje, M.Botta, E.Boettger, S.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.Buxton, J. T.Caffarri, D.Cai, X.Caines, H.Diaz, L. CaleroCaliva, A.Calvo Villar, E.Camerini, P.Carena, F.Carena, W.Castellanos, J. CastilloCastro, A. J.Casula, E. A. R.Cavicchioli, C.Ceballos Sanchez, C.Cepila, J.Cerello, P.Chang, B.Chapeland, S.Chartier, M.Charvet, J. L.Chattopadhyay, S.Chelnokov, V.Cherney, M.Cheshkov, C.Cheynis, B.Barroso, V. ChibanteChinellato, D. D.Chochula, P.Choi, K.Chojnacki, M.Choudhury, S.Christakoglou, P.Christensen, C. H.Christiansen, PeterChujo, T.Chung, S. U.Cicalo, C.Cifarelli, L.Cindolo, F.Cleymans, J.Colamaria, F.Colella, D.Collu, A.Colocci, M.Balbastre, G. Conesadel Valle, Z. ConesaConnors, M. E.Contreras, J. G.Cormier, T. M.Morales, Y. CorralesCortes 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 Cuveland, J.De Falco, A.De Gruttola, D.De Marco, N.De Pasquale, S.Deisting, A.Deloff, A.Denes, E.D'Erasmo, G.Di Bari, D.Di Mauro, A.Di Nezza, P.Diaz Corchero, M. A.Dietel, T.Dillenseger, P.Divia, R.Djuvsland, O.Dobrin, A.Dobrowolski, T.Domenicis Gimenez, D.Doenigus, B.Dordic, O.Dubey, A. K.Dubla, A.Ducroux, L.Dupieux, P.Ehlers, R. J.Elia, D.Engel, H.Erazmus, B.Erhardt, F.Eschweiler, D.Espagnon, B.Estienne, M.Esumi, S.Evans, D.Evdokimov, S.Eyyubova, G.Fabbietti, L.Fabris, D.Faivre, J.Fantoni, A.Fasel, M.Feldkamp, L.Felea, D.Feliciello, A.Feofilov, G.Ferencei, J.Fernandez Tellez, A.Ferreiro, E. G.Ferretti, A.Festanti, A.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.Fuchs, U.Furget, C.Furs, A.Girard, M. FuscoGaardhoje, 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.Germain, M.Gheata, A.Gheata, M.Ghosh, P.Ghosh, S. K.Gianotti, P.Giubellino, P.Giubilato, P.Gladysz-Dziadus, E.Glaessel, P.Ramirez, A. GomezGonzalez-Zamora, P.Gorbunov, S.Goerlich, L.Gotovac, S.Grabski, V.Graczykowski, L. K.Grelli, A.Grigoras, A.Grigoras, C.Grigoriev, V.Grigoryan, A.Grigoryan, S.Grinyov, B.Grion, N.Grosse-Oetringhaus, J. F.Grossiord, J-Y.Grosso, R.Guber, F.Guernane, R.Guerzoni, B.Gulbrandsen, K.Gulkanyan, H.Gunji, T.Gupta, A.Gupta, R.Haake, R.Haaland, O.Hadjidakis, C.Haiduc, M.Hamagaki, H.Hamar, G.Hanratty, L. D.Hansen, A.Harris, J. W.Hartmann, H.Harton, A.Hatzifotiadou, D.Hayashi, S.Heckel, S. T.Heide, M.Helstrup, H.Herghelegiu, A.Herrera Corral, G.Hess, B. A.Hetland, K. F.Hilden, T. E.Hillemanns, H.Hippolyte, B.Hristov, P.Huang, M.Humanic, T. J.Hussain, N.Hussain, T.Hutter, D.Hwang, D. S.Ilkaev, R.Ilkiv, I.Inaba, M.Ionita, C.Ippolitov, M.Irfan, M.Ivanov, M.Ivanov, V.Izucheev, V.Jacholkowski, A.Jacobs, P. M.Jahnke, C.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.Uysal, A. KarasuKaravichev, O.Karavicheva, T.Karpechev, E.Kebschull, U.Keidel, R.Keijdener, D. L. D.Keil, M.Khan, K. H.Khan, M. M.Khan, P.Khan, S. A.Khanzadeev, A.Kharlov, Y.Kileng, B.Kim, B.Kim, D. W.Kim, D. J.Kim, H.Kim, J. S.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.Kluge, A.Knichel, M. L.Knospe, A. G.Kobayashi, T.Kobdaj, C.Kofarago, M.Koehler, M. K.Kollegger, T.Kolojvari, A.Kondratiev, V.Kondratyeva, N.Kondratyuk, E.Konevskikh, A.Kouzinopoulos, C.Kovalenko, V.Kowalski, M.Kox, S.Meethaleveedu, G. KoyithattaKral, J.Kralik, I.Kravcakova, A.Krelina, M.Kretz, M.Krivda, M.Krizek, F.Kryshen, E.Krzewicki, M.Kubera, A. M.Kucera, V.Kucheriaev, Y.Kugathasan, T.Kuhn, C.Kuijer, P. G.Kulakov, I.Kumar, J.Kumar, L.Kurashvili, P.Kurepin, A.Kurepin, A. B.Kuryakin, A.Kushpil, S.Kweon, M. J.Kwon, Y.La Pointe, S. L.La Rocca, 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.Legrand, I.Lehnert, J.Lemmon, R. C.Lenti, V.Leogrande, E.Leon Monzon, I.Leoncino, M.Levai, P.Li, S.Li, X.Lien, J.Lietava, R.Lindal, S.Lindenstruth, V.Lippmann, C.Lisa, M. A.Ljunggren, MartinLodato, D. F.Loenne, P. I.Loggins, V. R.Loginov, V.Loizides, C.Lopez, X.Lopez Torres, E.Lowe, A.Lu, X-G.Luettig, P.Lunardon, M.Luparello, G.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.Manceau, L.Manko, V.Manso, F.Manzari, V.Marchisone, M.Mares, J.Margagliotti, G. V.Margotti, A.Margutti, J.Marin, A.Markert, C.Marquard, M.Martashvili, I.Martin, N. A.Blanco, J. MartinMartinengo, P.Martinez, M. I.Garcia, G. MartinezPedreira, M. MartinezMartynov, Y.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.Menchaca-Rocha, A.Meninno, E.Perez, J. MercadoMeres, M.Miake, Y.Mieskolainen, M. M.Mikhaylov, K.Milano, L.Milosevic, J.Minervini, L. M.Mischke, A.Mishra, A. N.Miskowiec, D.Mitra, J.Mitu, C. M.Mohammadi, N.Mohanty, B.Molnar, L.Montano Zetina, L.Montes, E.Morando, M.Moretto, S.Morreale, A.Morsch, A.Muccifora, V.Mudnic, E.Muehlheim, D.Muhuri, S.Mukherjee, M.Mueller, H.Mulligan, J. D.Munhoz, M. G.Murray, S.Musa, L.Musinsky, J.Nandi, B. K.Nania, R.Nappi, E.Naru, M. U.Nattrass, C.Nayak, K.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.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.Ortiz Velasquez, A.Oskarsson, AndersOtwinowski, J.Oyama, K.Ozdemir, M.Pachmayer, Y.Pagano, P.Paic, G.Pajares, C.Pal, S. K.Pan, J.Pandey, A. K.Pant, D.Papikyan, V.Pappalardo, G. S.Pareek, P.Park, W. J.Parmar, S.Passfeld, A.Paticchio, V.Paul, B.Pawlak, T.Peitzmann, T.Da Costa, H. PereiraPereira De Oliveira Filho, E.Peresunko, D.Lara, C. E. 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RodriguezRoed, K.Rogochaya, E.Rohr, D.Roehrich, 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.Safarik, K.Sahlmuller, B.Sahoo, P.Sahoo, R.Sahoo, S.Sahu, P. K.Saini, J.Sakai, S.Saleh, M. A.Salgado, C. A.Salzwedel, J.Sambyal, S.Samsonov, V.Castro, X. SanchezSandor, L.Sandoval, A.Sano, M.Santagati, G.Sarkar, D.Scapparone, E.Scarlassara, F.Scharenberg, R. P.Schiaua, C.Schicker, R.Schmidt, C.Schmidt, H. R.Schuchmann, S.Schukraft, J.Schulc, M.Schuster, T.Schutz, Y.Schwarz, K.Schweda, K.Scioli, G.Scomparin, E.Scott, R.Seeder, K. S.Seger, J. E.Sekiguchi, Y.Selyuzhenkov, I.Senosi, K.Seo, J.Serradilla, E.Sevcenco, A.Shabanov, A.Shabetai, A.Shadura, O.Shahoyan, R.Shangaraev, A.Sharma, A.Sharma, N.Shigaki, K.Shtejer, K.Sibiriak, Y.Siddhanta, S.Sielewicz, K. 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L.Utrobicic, A.Vajzer, M.Vala, M.Palomo, L. ValenciaVallero, 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 Limon, S.Vernet, R.Verweij, M.Vickovic, L.Viesti, G.Viinikainen, J.Vilakazi, Z.Baillie, O. VillalobosVinogradov, A.Vinogradov, L.Vinogradov, Y.Virgili, T.Vislavicius, VytautasViyogi, Y. P.Vodopyanov, A.Voelkl, M. A.Voloshin, K.Voloshin, S. A.Volpe, G.von Haller, B.Vorobyev, I.Vranic, D.Vrlakova, J.Vulpescu, B.Vyushin, A.Wagner, B.Wagner, J.Wang, H.Wang, M.Wang, Y.Watanabe, D.Weber, M.Weber, S. G.Wessels, J. P.Westerhoff, U.Wiechula, J.Wikne, J.Wilde, M.Wilk, G.Wilkinson, J.Williams, M. C. S.Windelband, B.Winn, M.Yaldo, C. G.Yamaguchi, Y.Yang, H.Yang, P.Yano, S.Yasnopolskiy, S.Yin, Z.Yokoyama, H.Yoo, I-K.Yurchenko, V.Yushmanov, I.Zaborowska, A.Zaccolo, V.Zaman, A.Zampolli, C.Zanoli, H. J. C.Zaporozhets, S.Zarochentsev, A.Zavada, P.Zaviyalov, N.Zbroszczyk, H.Zgura, I. S.Zhalov, M.Zhang, H.Zhang, X.Zhang, Y.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.Zyzak, M.
Source
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. 752:267-277
Subject
Naturvetenskap
Fysik
Subatomär fysik
Natural Sciences
Physical Sciences
Subatomic Physics
Language
English
ISSN
0370-2693
Abstract
We present results of a search for two hypothetical strange dibaryon states, i.e. the H-dibaryon and the possible (Lambda n) over bar bound state. The search is performed with the ALICE detector in central (0-10%) Pb-Pb collisions at root S-NN = 2.76 TeV, by invariant mass analysis in the decay modes (Lambda n) over bar (d) over bar pi(+) and H-dibaryon -> Lambda p pi(-). No evidence for these bound states is observed. Upper limits are determined at 99% confidence level for a wide range of lifetimes and for the full range of branching ratios. The results are compared to thermal, coalescence and hybrid UrQMD model expectations, which describe correctly the production of other loosely bound states, like the deuteron and the hypertriton. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.