| Article | |
| Report number | arXiv:1403.7845 ; CERN-PH-EP-2014-059 ; CERN-PH-EP-2014-059 |
| Title | Transverse momentum distribution and nuclear modification factor of forward neutral pion in proton–lead collisions at $\sqrt{s_{NN}}$= 5.02 TeV |
| Author(s) |
Adriani, O. (INFN, Florence ; Florence U.) ; Berti, E. (INFN, Florence ; Florence U.) ; Bonechi, L. (INFN, Florence) ; Bongi, M. (INFN, Florence ; Florence U.) ; Castellini, G. (INFN, Florence ; IFAC, Florence) ; D'Alessandro, R. (INFN, Florence ; Florence U.) ; Del Prete, M. (INFN, Florence ; Florence U.) ; Haguenauer, M. (Ecole Polytechnique) ; Itow, Y. (Nagoya U., Solar-Terrestrial Environ. Lab. ; KMI, Nagoya) ; Kasahara, K. (Waseda U., RISE) ; Kawade, K. (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Makino, Y. (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Masuda, K. (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Matsubayashi, E. (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Menjo, H. (Nagoya U.) ; Mitsuka, G. (Florence U. ; Nagoya U., Solar-Terrestrial Environ. Lab.) ; Muraki, Y. (Nagoya U., Solar-Terrestrial Environ. Lab.) ; Papini, P. (INFN, Florence) ; Perrot, A.-L. (CERN) ; Pfeiffer, D. (CERN) ; Ricciarini, S. (INFN, Florence ; IFAC, Florence) ; Sako, T. (Nagoya U., Solar-Terrestrial Environ. Lab. ; KMI, Nagoya) ; Sakurai, N. (KMI, Nagoya) ; Suzuki, T. (Waseda U., RISE) ; Tamura, T. (Kanagawa U.) ; Tiberio, A. (INFN, Florence ; Florence U.) ; Torii, S. (Waseda U., RISE) ; Tricomi, A. (INFN, Catania ; Catania U.) ; Turner, W.C. (LBNL, Berkeley) |
| Publication | 2014-06-23 |
| Imprint | 25 Mar 2014 |
| Number of pages | 12 |
| Note | Comments: 13 pages, 7 figures; 9 tables, submitted to Phys. Rev. C 13 pages, 7 figures; 9 tables, accepted in Phys. Rev. C |
| In: | Phys. Rev. C 89 (2014) 065209 |
| DOI | 10.1103/PhysRevC.89.065209 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN LHC ; LHCf |
| Free keywords | QCD ; forward physics ; particle and resonance production ; minimum bias ; calorimeter ; experimental results ; nuclear effect in pPb collision ; forward pi0 production |
| Abstract | The transverse momentum ($p_\text{T}$) 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 $\sqrt{s_{NN}} = 5.02$TeV at the LHC. The $p_\text{T}$ spectra obtained in the rapidity range $-11.0 < y_\text{lab} < -8.9$ and $0 < p_\text{T} < 0.6$GeV (in the detector reference frame) show a strong suppression of the production of neutral pions after taking into account ultra-peripheral collisions. This leads to a nuclear modification factor value, relative to the interpolated $p_\text{T}$ spectra in proton-proton collisions at $\sqrt{s} = 5.02$TeV, of about 0.1--0.4. This value is compared with the predictions of several hadronic interaction Monte Carlo simulations. |
| Copyright/License | preprint: © 2014-2025 CERN (License: CC-BY-3.0) publication: © 2014-2025 CERN (License: CC-BY-4.0) |
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Record created 2014-03-25, last modified 2024-05-08
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