Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV

B.I. Abelev; M. Chojnacki; P. Christakoglou; R. S. de Rooij; A. Grelli; G. Luparello; A. Mischke; G.J.L. Nooren; T. Peitzmann; M Reicher; R.J.M. Snellings; D Thomas; M. van Leeuwen; M Veldhoen; M. Verweij; Y. Zhou; M. Zynovyev

doi:10.1016/j.physletb.2012.09.015

Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV

B.I. Abelev, M. Chojnacki, P. Christakoglou, R. S. de Rooij, A. Grelli, G. Luparello, A. Mischke, G.J.L. Nooren, T. Peitzmann, M Reicher, R.J.M. Snellings, D Thomas, M. van Leeuwen, M Veldhoen, M. Verweij, Y. Zhou, M. Zynovyev

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Abstract

The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton–proton collisions at √ s = 0.9 TeV and √ s = 7 TeV are reported. The π0 measurement covers the ranges 0.4 <pT <7 GeV/c and 0.3 <pT <25 GeV/c for these two energies, respectively. The production of η mesons was measured at √ s = 7 TeV in the range 0.4 <pT <15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at √ s = 0.9 TeV, overestimate those of π0 and η mesons at √ s = 7 TeV, but agree with the measured η/π0 ratio at √ s =7 TeV.

Original language	English
Pages (from-to)	162-172
Number of pages	11
Journal	Physics Letters B
Volume	717
Issue number	1-3
DOIs	https://doi.org/10.1016/j.physletb.2012.09.015
Publication status	Published - 2012

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ALICE Collaboration

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Abelev, B. I., Chojnacki, M., Christakoglou, P., de Rooij, R. S., Grelli, A., Luparello, G., Mischke, A., Nooren, G. J. L., Peitzmann, T., Reicher, M., Snellings, R. J. M., Thomas, D., van Leeuwen, M., Veldhoen, M., Verweij, M., Zhou, Y., & Zynovyev, M. (2012). Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV. Physics Letters B, 717(1-3), 162-172. https://doi.org/10.1016/j.physletb.2012.09.015

@article{48ac499e284c4401bbdbbf48838d4ce1,

title = "Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV",

abstract = "The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton–proton collisions at √ s = 0.9 TeV and √ s = 7 TeV are reported. The π0 measurement covers the ranges 0.4 <pT <7 GeV/c and 0.3 <pT <25 GeV/c for these two energies, respectively. The production of η mesons was measured at √ s = 7 TeV in the range 0.4 <pT <15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at √ s = 0.9 TeV, overestimate those of π0 and η mesons at √ s = 7 TeV, but agree with the measured η/π0 ratio at √ s =7 TeV.",

author = "B.I. Abelev and M. Chojnacki and P. Christakoglou and {de Rooij}, {R. S.} and A. Grelli and G. Luparello and A. Mischke and G.J.L. Nooren and T. Peitzmann and M Reicher and R.J.M. Snellings and D Thomas and {van Leeuwen}, M. and M Veldhoen and M. Verweij and Y. Zhou and M. Zynovyev",

note = "ALICE Collaboration",

year = "2012",

doi = "10.1016/j.physletb.2012.09.015",

language = "English",

volume = "717",

pages = "162--172",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-3",

}

Abelev, BI, Chojnacki, M, Christakoglou, P, de Rooij, RS, Grelli, A, Luparello, G, Mischke, A, Nooren, GJL, Peitzmann, T, Reicher, M, Snellings, RJM, Thomas, D, van Leeuwen, M, Veldhoen, M, Verweij, M, Zhou, Y & Zynovyev, M 2012, 'Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV', Physics Letters B, vol. 717, no. 1-3, pp. 162-172. https://doi.org/10.1016/j.physletb.2012.09.015

TY - JOUR

T1 - Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV

AU - Abelev, B.I.

AU - Chojnacki, M.

AU - Christakoglou, P.

AU - de Rooij, R. S.

AU - Grelli, A.

AU - Luparello, G.

AU - Mischke, A.

AU - Nooren, G.J.L.

AU - Peitzmann, T.

AU - Reicher, M

AU - Snellings, R.J.M.

AU - Thomas, D

AU - van Leeuwen, M.

AU - Veldhoen, M

AU - Verweij, M.

AU - Zhou, Y.

AU - Zynovyev, M.

N1 - ALICE Collaboration

PY - 2012

Y1 - 2012

N2 - The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton–proton collisions at √ s = 0.9 TeV and √ s = 7 TeV are reported. The π0 measurement covers the ranges 0.4 <pT <7 GeV/c and 0.3 <pT <25 GeV/c for these two energies, respectively. The production of η mesons was measured at √ s = 7 TeV in the range 0.4 <pT <15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at √ s = 0.9 TeV, overestimate those of π0 and η mesons at √ s = 7 TeV, but agree with the measured η/π0 ratio at √ s =7 TeV.

AB - The first measurements of the invariant differential cross sections of inclusive π0 and η meson production at mid-rapidity in proton–proton collisions at √ s = 0.9 TeV and √ s = 7 TeV are reported. The π0 measurement covers the ranges 0.4 <pT <7 GeV/c and 0.3 <pT <25 GeV/c for these two energies, respectively. The production of η mesons was measured at √ s = 7 TeV in the range 0.4 <pT <15 GeV/c. Next-to-Leading Order perturbative QCD calculations, which are consistent with the π0 spectrum at √ s = 0.9 TeV, overestimate those of π0 and η mesons at √ s = 7 TeV, but agree with the measured η/π0 ratio at √ s =7 TeV.

U2 - 10.1016/j.physletb.2012.09.015

DO - 10.1016/j.physletb.2012.09.015

M3 - Article

SN - 0370-2693

VL - 717

SP - 162

EP - 172

JO - Physics Letters B

JF - Physics Letters B

IS - 1-3

ER -

Neutral pion and η meson production in proton-proton collisions at s √ =0.9 TeV and s √ =7 TeV

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