Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV

O. Adriani; E. Berti; L. Bonechi; M. Bongi; G. Castellini; R. D'Alessandro; M. Del Prete; M. Haguenauer; Y. Itow; K. Kasahara; K. Kawade; Y. Makino; K. Masuda; E. Matsubayashi; H. Menjo; G. Mitsuka; Y. Muraki; P. Papini; A. L. Perrot; D. Pfeiffer; S. Ricciarini; T. Sako; N. Sakurai; T. Suzuki; T. Tamura; A. Tiberio; Shoji Torii; A. Tricomi; W. C. Turner

doi:10.1103/PhysRevC.89.065209

Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV

O. Adriani, E. Berti, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, M. Del Prete, M. Haguenauer, Y. Itow, K. Kasahara, K. Kawade, Y. Makino, K. Masuda, E. Matsubayashi, H. Menjo, G. Mitsuka, Y. Muraki, P. Papini, A. L. Perrot, D. PfeifferS. Ricciarini, T. Sako, N. Sakurai, T. Suzuki, T. Tamura, A. Tiberio, Shoji Torii, A. Tricomi, W. C. Turner

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Abstract

The transverse momentum (pT) distribution for inclusive neutral pions in the very forward rapidity region has been measured, with the Large Hadron Collider forward detector (LHCf), in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02TeV at the LHC. The pT spectra obtained in the rapidity range -11.0<ylab<-8.9 and 0<pT<0.6GeV (in the detector reference frame) show a strong suppression of the production of neutral pions after taking into account ultraperipheral collisions. This leads to a nuclear modification factor value, relative to the interpolated pT spectra in proton-proton collisions at s=5.02TeV, of about 0.1-0.4. This value is compared with the predictions of several hadronic interaction Monte Carlo simulations.

Original language	English
Article number	065209
Journal	Physical Review C - Nuclear Physics
Volume	89
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.89.065209
Publication status	Published - 2014 Jun 23

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.89.065209

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Adriani, O., Berti, E., Bonechi, L., Bongi, M., Castellini, G., D'Alessandro, R., Del Prete, M., Haguenauer, M., Itow, Y., Kasahara, K., Kawade, K., Makino, Y., Masuda, K., Matsubayashi, E., Menjo, H., Mitsuka, G., Muraki, Y., Papini, P., Perrot, A. L., ... Turner, W. C. (2014). Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV. Physical Review C - Nuclear Physics, 89(6), Article 065209. https://doi.org/10.1103/PhysRevC.89.065209

Adriani, O, Berti, E, Bonechi, L, Bongi, M, Castellini, G, D'Alessandro, R, Del Prete, M, Haguenauer, M, Itow, Y, Kasahara, K, Kawade, K, Makino, Y, Masuda, K, Matsubayashi, E, Menjo, H, Mitsuka, G, Muraki, Y, Papini, P, Perrot, AL, Pfeiffer, D, Ricciarini, S, Sako, T, Sakurai, N, Suzuki, T, Tamura, T, Tiberio, A, Torii, S, Tricomi, A & Turner, WC 2014, 'Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV', Physical Review C - Nuclear Physics, vol. 89, no. 6, 065209. https://doi.org/10.1103/PhysRevC.89.065209

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title = "Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV",

abstract = "The transverse momentum (pT) distribution for inclusive neutral pions in the very forward rapidity region has been measured, with the Large Hadron Collider forward detector (LHCf), in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02TeV at the LHC. The pT spectra obtained in the rapidity range -11.0",

author = "O. Adriani and E. Berti and L. Bonechi and M. Bongi and G. Castellini and R. D'Alessandro and {Del Prete}, M. and M. Haguenauer and Y. Itow and K. Kasahara and K. Kawade and Y. Makino and K. Masuda and E. Matsubayashi and H. Menjo and G. Mitsuka and Y. Muraki and P. Papini and Perrot, {A. L.} and D. Pfeiffer and S. Ricciarini and T. Sako and N. Sakurai and T. Suzuki and T. Tamura and A. Tiberio and Shoji Torii and A. Tricomi and Turner, {W. C.}",

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AU - Adriani, O.

AU - Berti, E.

AU - Bonechi, L.

AU - Bongi, M.

AU - Castellini, G.

AU - D'Alessandro, R.

AU - Del Prete, M.

AU - Haguenauer, M.

AU - Itow, Y.

AU - Kasahara, K.

AU - Kawade, K.

AU - Makino, Y.

AU - Masuda, K.

AU - Matsubayashi, E.

AU - Menjo, H.

AU - Mitsuka, G.

AU - Muraki, Y.

AU - Papini, P.

AU - Perrot, A. L.

AU - Pfeiffer, D.

AU - Ricciarini, S.

AU - Sako, T.

AU - Sakurai, N.

AU - Suzuki, T.

AU - Tamura, T.

AU - Tiberio, A.

AU - Torii, Shoji

AU - Tricomi, A.

AU - Turner, W. C.

PY - 2014/6/23

Y1 - 2014/6/23

N2 - The transverse momentum (pT) distribution for inclusive neutral pions in the very forward rapidity region has been measured, with the Large Hadron Collider forward detector (LHCf), in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02TeV at the LHC. The pT spectra obtained in the rapidity range -11.0

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Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at s NN =5.02 TeV

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