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Charged-Particle Multiplicity Density at Midrapidity in Central Pb-Pb Collisions at root s(NN)=2.76 TeV

Aamodt, K. ; Abelev, B. ; Abrahantes Quintana, A. ; Adamova, D. ; Adare, A. M. ; Aggarwal, M. M. ; Rinella, G. Aglieri ; Agocs, A. G. ; Aguilar Salazar, S. and Ahammed, Z. , et al. (2010) In Physical Review Letters 105(25).
Abstract
The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair root s(NN) = 2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary charged particles at midrapidity is 1584 +/- 4(stat) +/- 76(syst), which corresponds to 8.3 +/- 0.4(syst) per participating nucleon pair. This represents an increase of about a factor 1.9 relative to pp collisions at similar collision energies, and about a factor 2.2 to central Au-Au collisions at root s(NN) = 0.2 TeV. This measurement provides the first experimental constraint for models of nucleus-nucleus collisions at LHC energies.
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
105
issue
25
publisher
American Physical Society
external identifiers
  • wos:000286750400007
  • scopus:78650365433
  • pmid:21231579
ISSN
1079-7114
DOI
10.1103/PhysRevLett.105.252301
language
English
LU publication?
yes
id
b7a1be63-3cd3-46e9-907d-c773e46a4532 (old id 1863069)
date added to LUP
2016-04-01 09:53:45
date last changed
2023-03-08 08:35:54
@article{b7a1be63-3cd3-46e9-907d-c773e46a4532,
  abstract     = {{The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair root s(NN) = 2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary charged particles at midrapidity is 1584 +/- 4(stat) +/- 76(syst), which corresponds to 8.3 +/- 0.4(syst) per participating nucleon pair. This represents an increase of about a factor 1.9 relative to pp collisions at similar collision energies, and about a factor 2.2 to central Au-Au collisions at root s(NN) = 0.2 TeV. This measurement provides the first experimental constraint for models of nucleus-nucleus collisions at LHC energies.}},
  author       = {{Aamodt, K. and Abelev, B. and Abrahantes Quintana, A. and Adamova, D. and Adare, A. M. and Aggarwal, M. M. and Rinella, G. Aglieri and Agocs, A. G. and Aguilar Salazar, S. and Ahammed, Z. and Masoodi, A. Ahmad and Ahmad, N. and Ahn, S. U. and Akindinov, A. and Aleksandrov, D. and Alessandro, B. and Molina, R. Alfaro and Alici, A. and Alkin, A. and Almaraz Avina, E. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and Andronic, A. and Anguelov, V. and Anson, C. and Anticic, T. and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshaeuser, H. and Arbor, N. and Arcelli, S. and Arend, A. and Armesto, N. and Arnaldi, R. and Aronsson, T. and Arsene, I. C. and Asryan, A. and Augustinus, A. and Averbeck, R. and Awes, T. C. and Aysto, J. and Azmi, M. D. and Bach, M. and Badala, A. and Baek, Y. W. and Bagnasco, S. and Bailhache, R. and Bala, R. and Ferroli, R. Baldini and Baldisseri, A. and Baldit, A. and Pedrosa, F. Baltasar Dos Santos and Ban, J. and Barbera, R. and Barile, F. and Barnafoeldi, G. G. and Barnby, L. S. and Barret, V. and Bartke, J. and Basile, M. and Bastid, N. and Bathen, B. and Batigne, G. and Batyunya, B. and Baumann, C. and Bearden, I. G. and Beck, H. and Belikov, I. and Bellini, F. and Bellwied, R. and Belmont-Moreno, E. and Beole, S. and Berceanu, I. and Bercuci, A. and Berdermann, E. and Berdnikov, Y. and Bergmann, C. and Betev, L. and Bhasin, A. and Bhati, A. K. and Bianchi, L. and Bianchi, N. and Bianchin, C. and Bielcik, J. and Bielcikova, J. and Bilandzic, A. and Biolcati, E. and Blanc, A. and Blanco, F. and Blanco, F. and Blau, D. and Blume, C. and Boccioli, M. and Bock, N. and Bogdanov, A. and Boggild, H. and Bogolyubsky, M. and Boldizsar, L. and Bombara, M. and Bombonati, C. and Book, J. and Borel, H. and Borissov, A. and Bortolin, C. and Bose, S. and Bossu, F. and Botje, M. and Boettger, S. and Boyer, B. and Braun-Munzinger, P. and Bravina, L. and Bregant, M. and Breitner, T. and Broz, M. and Brun, R. and Bruna, E. and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bugaiev, K. and Busch, O. and Buthelezi, Z. and Caffarri, D. and Cai, X. and Caines, H. and Villar, E. Calvo and Camerini, P. and Roman, V. Canoa and Romeo, G. Cara and Carena, F. and Carena, W. and Carminati, F. and Casanova Diaz, A. and Caselle, M. and Castellanos, J. Castillo and Catanescu, V. and Cavicchioli, 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 Chiavassa, E. and Barroso, V. Chibante and Chinellato, D. D. and Chochula, P. and Chojnacki, M. and Christakoglou, P. and Christensen, C. H. and Christiansen, Peter and Chujo, T. and Cicalo, C. and Cifarelli, L. and Cindolo, F. and Cleymans, J. and Coccetti, F. and Coffin, J. -P. and Coli, S. and Balbastre, G. Conesa and Conesa del Valle, Z. and Constantin, P. and Contin, G. and Contreras, J. G. and Cormier, T. M. and Morales, Y. Corrales and Maldonado, I. Cortes and Cortese, P. and Cosentino, M. R. and Costa, F. and Cotallo, M. E. and Crescio, E. and Crochet, P. and Cuautle, E. and Cunqueiro, L. and Erasmo, G. D. and Dainese, A. and Dalsgaard, H. H. and Danu, A. and Das, D. and Das, I. and Das, K. and Dash, A. and Dash, S. and De, S. and Moregula, A. De Azevedo and de Barros, G. O. V. and De Caro, A. and de Cataldo, G. and de Cuveland, J. and De Falco, A. and De Gruttola, D. and De Marco, N. and De Pasquale, S. and De Remigis, R. and de Rooij, R. and Debski, P. R. and Sanchez, E. Del Castillo and Delagrange, H. and Mercado, Y. Delgado and Dellacasa, G. and Deloff, A. and Demanov, V. and Denes, E. and Deppman, A. and Di Bari, D. and Di Giglio, C. and Di Liberto, S. and Di Mauro, A. and Di Nezza, P. and Dietel, T. and Divia, R. and Djuvsland, O. and Dobrin, Alexandru and Dobrowolski, T. and Dominguez, I. and Doenigus, B. and Dordic, O. and Driga, O. and Dubey, A. K. and Dubuisson, J. and Ducroux, L. and Dupieux, P. and Majumdar, A. K. Dutta and Majumdar, M. R. Dutta and Elia, D. and Emschermann, D. and Engel, H. and Erdal, H. A. and Espagnon, B. and Estienne, M. and Esumi, S. and Evans, D. and Evrard, S. and Eyyubova, G. and Fabjan, C. W. and Fabris, D. and Faivre, J. and Falchieri, D. and Fantoni, A. and Fasel, M. and Fearick, R. and Fedunov, A. and Fehlker, D. and Fekete, V. and Felea, D. and Feofilov, G. and Fernandez Tellez, A. and Ferretti, A. and Ferretti, R. and Figiel, J. and Figueredo, M. A. S. and Filchagin, S. and Fini, R. and Finogeev, D. and Fionda, F. M. and Fiore, E. M. and Floris, M. and Foertsch, S. and Foka, P. and Fokin, S. and Fragiacomo, E. and Fragkiadakis, M. and Frankenfeld, U. and Fuchs, U. and Furano, F. and Furget, C. and Girard, M. Fusco and Gaardhoje, J. J. and Gadrat, S. and Gagliardi, M. and Gago, A. and Gallio, M. and Gangadharan, D. R. and Ganoti, P. and Ganti, M. S. and Garabatos, C. and Garcia-Solis, E. and Garishvili, I. and Gemme, R. and Gerhard, J. and Germain, M. and Geuna, C. and Gheata, A. and Gheata, M. and Ghidini, B. and Ghosh, P. and Gianotti, P. and Girard, M. R. and Giraudo, G. and Giubellino, P. and Gladysz-Dziadus, E. and Glaessel, P. and Gomez, R. and Ferreiro, E. G. and Gonzalez Santos, H. and Gonzalez-Trueba, L. H. and Gonzalez-Zamora, P. and Gorbunov, S. and Gotovac, S. and Grabski, V. and Grajcarek, R. and Grelli, A. and Grigoras, A. and Grigoras, C. and Grigoriev, V. and Grigoryan, A. and Grigoryan, S. and Grinyov, B. and Grion, N. and Gros, Philippe and Grosse-Oetringhaus, J. F. and Grossiord, J. -Y. and Grosso, R. and Guber, F. and Guernane, R. and Gutierrez, C. Guerra and Guerzoni, B. and Gulbrandsen, K. and Gunji, T. and Gupta, A. and Gupta, R. and Gutbrod, H. and Haaland, O. and Hadjidakis, C. and Haiduc, M. and Hamagaki, H. and Hamar, G. and Harris, J. W. and Hartig, M. and Hasch, D. and Hasegan, D. and Hatzifotiadou, D. and Hayrapetyan, A. and Heide, M. and Heinz, M. and Helstrup, H. and Herghelegiu, A. and Hernandez, C. and Corral, G. Herrera and Herrmann, N. and Hetland, K. F. and Hicks, B. and Hille, P. T. and Hippolyte, B. and Horaguchi, T. and Hori, Y. and Hristov, P. and Hrivnacova, I. and Huang, M. and Huber, S. and Humanic, T. J. and Hwang, D. S. and Ichou, R. and Ilkaev, R. and Ilkiv, I. and Inaba, M. and Incani, E. and Innocenti, G. M. and Innocenti, P. G. and Ippolitov, M. and Irfan, M. and Ivan, C. and Ivanov, A. and Ivanov, M. and Ivanov, V. and Jacholkowski, A. and Jacobs, P. M. and Jancurova, L. and Jangal, S. and Janik, R. and Jena, S. and Jirden, L. and Jones, G. T. and Jones, P. G. and Jovanovic, P. and Jung, H. and Jung, W. and Jusko, A. and Kalcher, S. and Kalinak, P. and Kalisky, M. and Kalliokoski, T. and Kalweit, A. and Kamermans, R. and Kanaki, K. and Kang, E. and Kang, J. H. and Kaplin, V. and Karavichev, O. and Karavicheva, T. and Karpechev, E. and Kazantsev, A. and Kebschull, U. and Keidel, R. and Khan, M. M. and Khan, S. A. and Khanzadeev, A. and Kharlov, Y. and Kileng, B. and Kim, D. J. and Kim, D. S. and Kim, D. W. and Kim, H. N. and Kim, J. H. and Kim, J. 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  issn         = {{1079-7114}},
  language     = {{eng}},
  number       = {{25}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Charged-Particle Multiplicity Density at Midrapidity in Central Pb-Pb Collisions at root s(NN)=2.76 TeV}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.105.252301}},
  doi          = {{10.1103/PhysRevLett.105.252301}},
  volume       = {{105}},
  year         = {{2010}},
}