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

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.; Pfeiffer, D.; Ricciarini, S.; Sako, T.; Sakurai, N.; Suzuki, T.; Tamura, T.; Tiberio, A.; Torii, S.; Tricomi, Alessia Rita; Turner, W. C.

doi:10.1103/PhysRevC.89.065209

The transverse momentum (p(T)) 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 v sNN = 5.02 TeV at the LHC. The pT spectra obtained in the rapidity range -11.0 < ylab < -8.9 and 0 < pT < 0.6 GeV (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 v s = 5.02 TeV, of about 0.1-0.4. This value is compared with the predictions of several hadronic interaction Monte Carlo simulations.

Titolo:	Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at root(NN)-N-S=5.02 TeV
Autori interni:	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. Pfeiffer D. Ricciarini S. Sako T. Sakurai N. Suzuki T. Tamura T. Tiberio A. Torii S. TRICOMI, Alessia Rita Turner W. C. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2014
Rivista:	PHYSICAL REVIEW. C, NUCLEAR PHYSICS
Handle:	http://hdl.handle.net/20.500.11769/48612
Appare nelle tipologie:	1.1 Articolo in rivista

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http://hdl.handle.net/20.500.11769/48612

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