Centrality, rapidity and transverse momentum dependence of J/ψ suppression in Pb–Pb collisions at √sNN = 2.76 TeV
Articolo
Data di Pubblicazione:
2014
Abstract:
The inclusive J/ψ nuclear modification factor (RAA) in Pb–Pb collisions at √sNN = 2.76 TeV has been measured by ALICE as a function of centrality in the e+e− decay channel at mid-rapidity (|y| < 0.8) and as a function of centrality, transverse momentum and rapidity in the μ+μ− decay channel at forward-rapidity (2.5 < y < 4). The J/ψ yields measured in Pb–Pb are suppressed compared to those in pp collisions scaled by the number of binary collisions. The RAA integrated over a centrality range corresponding to 90% of the inelastic Pb–Pb cross section is 0.72±0.06(stat.)±0.10(syst.) at mid-rapidity and 0.58 ± 0.01(stat.) ± 0.09(syst.) at forward-rapidity. At low transverse momentum, significantly larger values of RAA are measured at forward-rapidity compared to measurements at lower energy. These features suggest that a contribution to the J/ψ yield originates from charm quark (re)combination in the deconfined partonic medium.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Relativistic heavy ion collisions; Quark gluon plasma; Quarkonium; J/ψ suppression; Experimental results
Elenco autori:
Piano, Stefano; Lea, Ramona; Camerini, Paolo; Luparello, Grazia; Fragiacomo, Enrico; Margagliotti, Giacomo; Rui, Rinaldo; B., Abelev bv; J., Adam al; D., Adamová cd; M. M., Aggarwal ch; G., Aglieri Rinella ah; M., Agnello cn; De, ; A. G., Agocs eb; A., Agostinelli z; N., Agrawal as; Z., Ahammed dx; N., Ahmad r; A., Ahmad Masoodi r; I., Ahmed o; S. U., Ahn bo; S. A., Ahn bo; I., Aimo de; Cn, ; S., Aiola ec; M., Ajaz o; A., Akindinov be; D., Aleksandrov ct; B., Alessandro de; D., Alexandre cv; A., Alici l; Cy, ; A., Alkin c; J., Alme aj; T., Alt an; V., Altini ae; S., Altinpinar q; I., Altsybeev dw; C., Alves Garcia Prado dm; C., Andrei by; A., Andronic cq; V., Anguelov cm; J., Anielski az; T., Anticˇic ́ cr; F., Antinori db; P., Antonioli cy; L., Aphecetche df; H., Appelshäuser ax; N., Arbor br; S., Arcelli z; N., Armesto p; R., Arnaldi de; T., Aronsson ec; I. C., Arsene u; Cq, ; M., Arslandok ax; A., Augustinus ah; R., Averbeck cq; T. C., Awes ce; M. D., Azmi r; Cj, ; M., Bach an; A., Badalà da; Y. W., Baek ao; Bq, ; S., Bagnasco de; R., Bailhache ax; V., Bairathi cl; R., Bala ck; A., Baldisseri n; F., Baltasar Dos Santos Pedrosa ah; J., Bán bf; R. C., Baral bh; R., Barbera aa; F., Barile ae; G. G., Barnaföldi eb; L. S., Barnby cv; V., Barret bq; J., Bartke dj; M., Basile z; N., Bastid bq; S., Basu dx; B., Bathen az; G., Batigne df; B., Batyunya bm; P. C., Batzing u; C., Baumann ax; I. G., Bearden ca; H., Beck ax; C., Bedda cn; N. K., Behera as; I., Belikov ba; F., Bellini z; R., Bellwied do; E., Belmont Moreno bk; G., Bencedi eb; S., Beole y; I., Berceanu by; A., Bercuci by; Y., Berdnikov cf; 1, ; D., Berenyi eb; M. E., Berger di; A. A. E., Bergognon df; R. A., Bertens bd; D., Berzano y; L., Betev ah; A., Bhasin ck; A. K., Bhati ch; B., Bhattacharjee ap; J., Bhom dt; L., Bianchi y; N., Bianchi bs; C., Bianchin bd; J., Bielcˇík al; J., Bielcˇíková cd; A., Bilandzic ca; S., Bjelogrlic bd; F., Blanco j; D., Blau ct; C., Blume ax; F., Bock bu; Cm, ; F. V., Boehmer di; A., Bogdanov bw; H., Bøggild ca; M., Bogolyubsky bb; L., Boldizsár eb; M., Bombara am; J., Book ax; H., Borel n; A., Borissov cp; Ea, ; J., Bornschein an; F., Bossú bl; M., Botje cb; E., Botta y; S., Böttger aw; P., Braun Munzinger cq; M., Bregant dm; Df, ; T., Breitner aw; T. A., Broker ax; T. A., Browning co; M., Broz ak; E., Bruna de; G. E., Bruno ae; D., Budnikov cs; H., Buesching ax; S., Bufalino de; P., Buncic ah; O., Busch cm; Z., Buthelezi bl; D., Caffarri ab; X., Cai g; H., Caines ec; A., Caliva bd; E., Calvo Villar cw; V., Canoa Roman ah; F., Carena ah; W., Carena ah; F., Carminati ah; A., Casanova Díaz bs; J., Castillo Castellanos n; E. A. R., Casula w; V., Catanescu by; C., Cavicchioli ah; C., Ceballos Sanchez i; J., Cepila al; P., Cerello de; B., Chang dp; S., Chapeland ah; J. L., Charvet n; S., Chattopadhyay dx; S., Chattopadhyay cu; M., Cherney cg; C., Cheshkov dv; B., Cheynis dv; V., Chibante Barroso ah; D. D., Chinellato do; Dn, ; P., Chochula ah; M., Chojnacki ca; S., Choudhury dx; P., Christakoglou cb; C. H., Christensen ca; P., Christiansen af; T., Chujo dt; S. U., Chung cp; C., Cicalo cz; L., Cifarelli l; Z, ; F., Cindolo cy; J., Cleymans cj; F., Colamaria ae; D., Colella ae; A., Collu w; M., Colocci z; G., Conesa Balbastre br; Z., Conesa del Valle av; Ah, ; M. E., Connors ec; G., Contin x; J. G., Contreras k; T. M., Cormier ce; Ea, ; Y., Corrales Morales y; P., Cortese ad; I., Cortés Maldonado b; M. R., Cosentino bu; Dm, ; F., Costa ah; P., Crochet bq; R., Cruz Albino k; E., Cuautle bj; L., Cunqueiro bs; Ah, ; A., Dainese db; R., Dang g; A., Danu bi; D., Das cu; I., Das av; K., Das cu; S., Das d; A., Dash dn; S., Dash as; S., De dx; H., Delagrange df; 2, ; A., Deloff bx; E., Dénes eb; G., D’Erasmo ae; G. O. V., de Barros dm; A., De Caro l; Ac, ; G., de Cataldo cx; J., de Cuveland an; A., De Falco w; D., De Gruttola ac; L, ; N., De Marco de; S., De Pasquale ac; R., de Rooij bd; M. A., Diaz Corche
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