J/ψ production in indium-indium collisions at 158GeV/nucleon

R. Arnaldi; K. Banicz; J. Castor; B. Chaurand; C. Cicalò; A. Colla; P. Cortese; S. Damjanovic; A. David; A. De Falco; A. Devaux; L. Ducroux; H. En'Yo; J. Fargeix; A. Ferretti; M. Floris; A. Förster; P. Force; N. Guettet; A. Guichard; H. Gulkanian; J. M. Heuser; M. Keil; L. Kluberg; C. Lourenço; J. Lozano; F. Manso; P. Martins; A. Masoni; A. Neves; H. Ohnishi; C. Oppedisano; P. Parracho; P. Pillot; T. Poghosyan; G. Puddu; E. Radermacher; P. Ramalhete; P. Rosinsky; E. Scomparin; J. Seixas; S. Serci; R. Shahoyan; P. Sonderegger; H. J. Specht; R. Tieulent; G. Usai; R. Veenhof; H. K. Wöhri

doi:10.1103/PhysRevLett.99.132302

J/ψ production in indium-indium collisions at 158GeV/nucleon

R. Arnaldi, K. Banicz, J. Castor, B. Chaurand, C. Cicalò, A. Colla, P. Cortese, S. Damjanovic, A. David, A. De Falco, A. Devaux, L. Ducroux, H. En'Yo, J. Fargeix, A. Ferretti, M. Floris, A. Förster, P. Force, N. Guettet, A. GuichardH. Gulkanian, J. M. Heuser, M. Keil, L. Kluberg, C. Lourenço, J. Lozano, F. Manso, P. Martins, A. Masoni, A. Neves, H. Ohnishi, C. Oppedisano, P. Parracho, P. Pillot, T. Poghosyan, G. Puddu, E. Radermacher, P. Ramalhete, P. Rosinsky, E. Scomparin, J. Seixas, S. Serci, R. Shahoyan, P. Sonderegger, H. J. Specht, R. Tieulent, G. Usai, R. Veenhof, H. K. Wöhri

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/ψ in In-In collisions. We have studied the J/ψ centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than ∼80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.

Lingua originale	Inglese
Numero di articolo	132302
Rivista	Physical Review Letters
Volume	99
Numero di pubblicazione	13
DOI	https://doi.org/10.1103/PhysRevLett.99.132302
Stato di pubblicazione	Pubblicato - 26 set 2007
Pubblicato esternamente	Sì

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10.1103/PhysRevLett.99.132302

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Arnaldi, R., Banicz, K., Castor, J., Chaurand, B., Cicalò, C., Colla, A., Cortese, P., Damjanovic, S., David, A., De Falco, A., Devaux, A., Ducroux, L., En'Yo, H., Fargeix, J., Ferretti, A., Floris, M., Förster, A., Force, P., Guettet, N., ... Wöhri, H. K. (2007). J/ψ production in indium-indium collisions at 158GeV/nucleon. Physical Review Letters, 99(13), Articolo 132302. https://doi.org/10.1103/PhysRevLett.99.132302

@article{314995d3be8f436997f9d4dee08e4807,

title = "J/ψ production in indium-indium collisions at 158GeV/nucleon",

abstract = "The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/ψ in In-In collisions. We have studied the J/ψ centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than ∼80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.",

author = "R. Arnaldi and K. Banicz and J. Castor and B. Chaurand and C. Cical{\`o} and A. Colla and P. Cortese and S. Damjanovic and A. David and {De Falco}, A. and A. Devaux and L. Ducroux and H. En'Yo and J. Fargeix and A. Ferretti and M. Floris and A. F{\"o}rster and P. Force and N. Guettet and A. Guichard and H. Gulkanian and Heuser, {J. M.} and M. Keil and L. Kluberg and C. Louren{\c c}o and J. Lozano and F. Manso and P. Martins and A. Masoni and A. Neves and H. Ohnishi and C. Oppedisano and P. Parracho and P. Pillot and T. Poghosyan and G. Puddu and E. Radermacher and P. Ramalhete and P. Rosinsky and E. Scomparin and J. Seixas and S. Serci and R. Shahoyan and P. Sonderegger and Specht, {H. J.} and R. Tieulent and G. Usai and R. Veenhof and W{\"o}hri, {H. K.}",

year = "2007",

month = sep,

day = "26",

doi = "10.1103/PhysRevLett.99.132302",

language = "English",

volume = "99",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

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Arnaldi, R, Banicz, K, Castor, J, Chaurand, B, Cicalò, C, Colla, A, Cortese, P, Damjanovic, S, David, A, De Falco, A, Devaux, A, Ducroux, L, En'Yo, H, Fargeix, J, Ferretti, A, Floris, M, Förster, A, Force, P, Guettet, N, Guichard, A, Gulkanian, H, Heuser, JM, Keil, M, Kluberg, L, Lourenço, C, Lozano, J, Manso, F, Martins, P, Masoni, A, Neves, A, Ohnishi, H, Oppedisano, C, Parracho, P, Pillot, P, Poghosyan, T, Puddu, G, Radermacher, E, Ramalhete, P, Rosinsky, P, Scomparin, E, Seixas, J, Serci, S, Shahoyan, R, Sonderegger, P, Specht, HJ, Tieulent, R, Usai, G, Veenhof, R & Wöhri, HK 2007, 'J/ψ production in indium-indium collisions at 158GeV/nucleon', Physical Review Letters, vol. 99, n. 13, 132302. https://doi.org/10.1103/PhysRevLett.99.132302

TY - JOUR

T1 - J/ψ production in indium-indium collisions at 158GeV/nucleon

AU - Arnaldi, R.

AU - Banicz, K.

AU - Castor, J.

AU - Chaurand, B.

AU - Cicalò, C.

AU - Colla, A.

AU - Cortese, P.

AU - Damjanovic, S.

AU - David, A.

AU - De Falco, A.

AU - Devaux, A.

AU - Ducroux, L.

AU - En'Yo, H.

AU - Fargeix, J.

AU - Ferretti, A.

AU - Floris, M.

AU - Förster, A.

AU - Force, P.

AU - Guettet, N.

AU - Guichard, A.

AU - Gulkanian, H.

AU - Heuser, J. M.

AU - Keil, M.

AU - Kluberg, L.

AU - Lourenço, C.

AU - Lozano, J.

AU - Manso, F.

AU - Martins, P.

AU - Masoni, A.

AU - Neves, A.

AU - Ohnishi, H.

AU - Oppedisano, C.

AU - Parracho, P.

AU - Pillot, P.

AU - Poghosyan, T.

AU - Puddu, G.

AU - Radermacher, E.

AU - Ramalhete, P.

AU - Rosinsky, P.

AU - Scomparin, E.

AU - Seixas, J.

AU - Serci, S.

AU - Shahoyan, R.

AU - Sonderegger, P.

AU - Specht, H. J.

AU - Tieulent, R.

AU - Usai, G.

AU - Veenhof, R.

AU - Wöhri, H. K.

PY - 2007/9/26

Y1 - 2007/9/26

N2 - The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/ψ in In-In collisions. We have studied the J/ψ centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than ∼80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.

AB - The NA60 experiment studies muon pair production at the CERN Super Proton Synchrotron. In this Letter we report on a precision measurement of J/ψ in In-In collisions. We have studied the J/ψ centrality distribution, and we have compared it with the one expected if absorption in cold nuclear matter were the only active suppression mechanism. For collisions involving more than ∼80 participant nucleons, we find that an extra suppression is present. This result is in qualitative agreement with previous Pb-Pb measurements by the NA50 experiment, but no theoretical explanation is presently able to coherently describe both results.

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U2 - 10.1103/PhysRevLett.99.132302

DO - 10.1103/PhysRevLett.99.132302

M3 - Article

SN - 0031-9007

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132302

ER -

J/ψ production in indium-indium collisions at 158GeV/nucleon

Abstract

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