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Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at root s(NN)=2.76 TeV

Abelev, B. ; Adam, J. ; Adamova, D. ; Adare, A. M. ; Aggarwal, M. M. ; Rinella, G. Aglieri ; Agnello, M. ; Agocs, A. G. ; Agostinelli, A. and Ahammed, Z. , et al. (2014) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 728. p.216-227
Abstract
The production of Xi(-) and Omega(-) baryons and their anti-particles in Pb-Pb collisions root s(NN) = 2.76 TeV has been measured using the ALICE detector. The transverse momentum spectra at mid-rapidity (vertical bar y vertical bar < 0.5) for charged Xi and Omega hyperons have been studied in the range 0.6 < P-T < 8.0 GeV/c and 1.2 < p(T) < 7.0 GeV/c, respectively, and in several centrality intervals (from the most central 0-.10% to the most peripheral 60-80% collisions). These spectra have been compared with the predictions of recent hydrodynamic models. In particular, the Krakow and EPOS models give a satisfactory description of the data, with the latter covering a wider P-T range. Mid-rapidity yields, integrated over... (More)
The production of Xi(-) and Omega(-) baryons and their anti-particles in Pb-Pb collisions root s(NN) = 2.76 TeV has been measured using the ALICE detector. The transverse momentum spectra at mid-rapidity (vertical bar y vertical bar < 0.5) for charged Xi and Omega hyperons have been studied in the range 0.6 < P-T < 8.0 GeV/c and 1.2 < p(T) < 7.0 GeV/c, respectively, and in several centrality intervals (from the most central 0-.10% to the most peripheral 60-80% collisions). These spectra have been compared with the predictions of recent hydrodynamic models. In particular, the Krakow and EPOS models give a satisfactory description of the data, with the latter covering a wider P-T range. Mid-rapidity yields, integrated over p(T), have been determined. The hyperon-to-pion ratios are similar to those at RHIC: they rise smoothly with centrality up to < N-part > similar to 150 and saturate thereafter. The enhancements (yields per participant nucleon relative to those in pp collisions) increase both with the strangeness content of the baryon and with centrality, but are less pronounced than at lower energies. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
728
pages
216 - 227
publisher
Elsevier
external identifiers
  • wos:000330556000037
  • scopus:84899688069
ISSN
0370-2693
DOI
10.1016/j.physletb.2013.11.048
language
English
LU publication?
yes
id
eeff570b-641c-4afd-b9ee-fb83b9e9d67d (old id 4369408)
date added to LUP
2016-04-01 13:12:47
date last changed
2023-01-03 21:36:14
@article{eeff570b-641c-4afd-b9ee-fb83b9e9d67d,
  abstract     = {{The production of Xi(-) and Omega(-) baryons and their anti-particles in Pb-Pb collisions root s(NN) = 2.76 TeV has been measured using the ALICE detector. The transverse momentum spectra at mid-rapidity (vertical bar y vertical bar &lt; 0.5) for charged Xi and Omega hyperons have been studied in the range 0.6 &lt; P-T &lt; 8.0 GeV/c and 1.2 &lt; p(T) &lt; 7.0 GeV/c, respectively, and in several centrality intervals (from the most central 0-.10% to the most peripheral 60-80% collisions). These spectra have been compared with the predictions of recent hydrodynamic models. In particular, the Krakow and EPOS models give a satisfactory description of the data, with the latter covering a wider P-T range. Mid-rapidity yields, integrated over p(T), have been determined. The hyperon-to-pion ratios are similar to those at RHIC: they rise smoothly with centrality up to &lt; N-part &gt; similar to 150 and saturate thereafter. The enhancements (yields per participant nucleon relative to those in pp collisions) increase both with the strangeness content of the baryon and with centrality, but are less pronounced than at lower energies. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.}},
  author       = {{Abelev, B. and Adam, J. and Adamova, D. and Adare, A. M. and Aggarwal, M. M. and Rinella, G. Aglieri and Agnello, M. and Agocs, A. G. and Agostinelli, A. and Ahammed, Z. and Ahmad, N. and Masoodi, A. Ahmad and Ahmed, I. and Ahn, S. U. and Ahn, S. A. and Aimo, I. and Aiola, S. and Ajaz, M. and Akindinov, A. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Alves Garcia Prado, C. and Andrei, C. and Andronic, A. and Anguelov, V. and Anielski, J. and Anticic, T. and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshauser, H. and Arbor, N. and Arcelli, S. and Armesto, N. and Arnaldi, R. and Aronsson, T. and Arsene, I. C. and Arslandok, M. and Augustinus, A. and Averbeck, R. and Awes, T. C. and Azmi, M. D. and Bach, M. and Badala, A. and Baek, Y. W. and Bailhache, R. and Bairathi, V. and Bala, R. and Baldisseri, A. and Pedrosa, F. Baltasar Dos Santos and Ban, J. and Baral, R. C. and Barbera, R. and Barile, F. and Barnaefoeldi, G. G. and Barnby, L. S. and Barret, V. and Bartke, J. and Basile, M. and Bastid, N. and Basu, S. and Bathen, B. and Batigne, G. and Batyunya, B. and Batzing, P. C. and Baumann, C. and Bearden, I. G. and Beck, H. and Behera, N. K. and Belikov, I. and Bellini, F. and Bellwied, R. and Belmont-Moreno, E. and Bencedi, G. and Beole, S. and Berceanu, I. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and Bergognon, A. A. E. and Bertens, R. A. and Berzano, D. and Betev, L. and Bhasin, A. and Bhati, A. K. and Bhom, J. and Bianchi, L. and Bianchi, N. and Bianchin, C. and Bielcik, J. and Bielcikova, J. and Bilandzic, A. and Bjelogrlic, S. and Blanco, F. and Blanco, F. and Blau, D. and Blume, C. and Bock, F. and Bogdanov, A. and Boggild, H. and Bogolyubsky, M. and Boldizsar, L. and Bombara, M. and Book, J. and Borel, H. and Borissov, A. and Bornschein, J. and Botje, M. and Botta, E. and Boettger, S. and Braun-Munzinger, P. and Bregant, M. and Breitner, T. and Broker, T. A. and Browning, T. A. and Broz, M. and Brun, R. and Bruna, E. and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bufalino, S. and Buncic, P. and Busch, O. and Buthelezi, Z. and Caffarri, D. and Cai, X. and Caines, H. and Caliva, A. and Calvo Villa, E. and Camerini, P. and Romeo, G. Cara and Carena, F. and Carena, W. and Carminati, F. and Diaz, A. Casanova and Castellanos, J. Castillo and Casula, E. A. R. and Catanescu, V. and Cavicchioli, C. and Ceballos Sanchez, C. and Cepila, J. and Cerello, P. and Chang, B. and Chapeland, S. and Charvet, J. L. and Chattopadhyay, S. and Chattopadhyay, S. and Cherney, M. and Cheshkov, C. and Cheynis, B. and Barroso, V. Chibante and Chinellato, D. D. and Chochula, P. and Chojnacki, M. and Choudhury, S. and Christakoglou, P. and Christensen, C. H. and Christiansen, Peter and Chujo, T. and Chung, S. U. and Cicalo, C. and Cifarelli, L. and Cindolo, F. and Cleymans, J. and Colamaria, F. and Colella, D. and Collu, A. and Colocci, M. and Balbastre, G. Conesa and del Valle, Z. Conesa and Connors, M. E. and Contin, G. and Contreras, J. G. and Cormier, T. M. and Morales, Y. Corrales and Cortese, P. and Cortes Maldonado, I. and Cosentino, M. 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W. and Hartmann, H. and Harton, A. and Hatzifotiadou, D. and Hayashi, S. and Hayrapetyan, A. and Heckel, S. T. and Heide, M. and Helstrup, H. and Herghelegiu, A. and Herrera Corral, G. and Herrmann, N. and Hess, B. A. and Hetland, K. F. and Hicks, B. and Hippolyte, B. and Hori, Y. and Hristov, P. and Hrivnacova, I. and Huang, M. and Humanic, T. J. and Hutter, D. and Hwang, D. S. and Ilkaev, R. and Ilkiv, I. and Inaba, M. and Incani, E. and Innocenti, G. M. and Ionita, C. and Ippolitov, M. and Irfan, M. and Ivanov, M. and Ivanov, V. and Ivanytskyi, O. and Jacholkowski, A. and Jahnke, C. and Jang, H. J. and Janik, M. A. and Jayarathna, P. H. S. Y. and Jena, S. and Jimenez Bustamante, R. T. and Jones, P. G. and Jung, H. and Jusko, A. and Kalcher, S. and Kalinak, P. and Kalweit, A. and Kang, J. H. and Kaplin, V. and Kan, S. and Uysal, A. Karasu and Karavichev, O. and Karavicheva, T. and Karpechev, E. and Kazantsev, A. and Kebschull, U. and Keidel, R. and Ketzer, B. and Khan, S. 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  issn         = {{0370-2693}},
  language     = {{eng}},
  pages        = {{216--227}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at root s(NN)=2.76 TeV}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2013.11.048}},
  doi          = {{10.1016/j.physletb.2013.11.048}},
  volume       = {{728}},
  year         = {{2014}},
}