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Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV

Publication ,  Journal Article
Adam, J; Adamová, D; Aggarwal, MM; Aglieri Rinella, G; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, SU; Aiola, S; Akindinov, A; Alam, SN ...
Published in: Journal of High Energy Physics
June 1, 2016

The inclusive production of the ψ(2S) charmonium state was studied as a function of centrality in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed with the ALICE detector in the center of mass rapidity ranges −4.46 < ycms< −2.96 and 2.03 < ycms< 3.53, down to zero transverse momentum, by reconstructing the ψ(2S) decay to a muon pair. The ψ(2S) production cross section σψ(2S) is presented as a function of the collision centrality, which is estimated through the energy deposited in forward rapidity calorimeters. The relative strength of nuclear effects on the ψ(2S) and on the corresponding 1S charmonium state J/ψ is then studied by means of the double ratio of cross sections [σψ(2S)/σJ/ψ]pPb/[σψ(2S)/σJ/ψ]pp between p-Pb and pp collisions, and by the values of the nuclear modification factors for the two charmonium states. The results show a large suppression of ψ(2S) production relative to the J/ψ at backward (negative) rapidity, corresponding to the flight direction of the Pb-nucleus, while at forward (positive) rapidity the suppressions of the two states are comparable. Finally, comparisons to results from lower energy experiments and to available theoretical models are presented.

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Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

ISSN

1126-6708

Publication Date

June 1, 2016

Volume

2016

Issue

6

Start / End Page

1 / 23

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

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Adam, J., Adamová, D., Aggarwal, M. M., Aglieri Rinella, G., Agnello, M., Agrawal, N., … Biro, G. (2016). Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV. Journal of High Energy Physics, 2016(6), 1–23. https://doi.org/10.1007/JHEP06(2016)050
Adam, J., D. Adamová, M. M. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, et al. “Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV.” Journal of High Energy Physics 2016, no. 6 (June 1, 2016): 1–23. https://doi.org/10.1007/JHEP06(2016)050.
Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, et al. Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV. Journal of High Energy Physics. 2016 Jun 1;2016(6):1–23.
Adam, J., et al. “Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV.” Journal of High Energy Physics, vol. 2016, no. 6, June 2016, pp. 1–23. Scopus, doi:10.1007/JHEP06(2016)050.
Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Aiola S, Akindinov A, Alam SN, Albuquerque DSD, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina R, Alici A, Alkin A, Almaraz JRM, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Balasubramanian S, Baldisseri A, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, 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 RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G. Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 TeV. Journal of High Energy Physics. 2016 Jun 1;2016(6):1–23.
Journal cover image

Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

ISSN

1126-6708

Publication Date

June 1, 2016

Volume

2016

Issue

6

Start / End Page

1 / 23

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics