Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV

I. Arsene; I. G. Bearden; D. Beavis; S. Bekele; C. Besliu; B. Budick; H. Bøggild; C. Chasman; C. H. Christensen; H. H. Dalsgaard; R. Debbe; J. J. Gaardhøje; K. Hagel; H. Ito; A. Jipa; E. B. Johnson; C. E. Jørgensen; R. Karabowicz; N. Katrynska; E. J. Kim; T. M. Larsen; J. H. Lee; S. Lindal; G. Løvhøiden; Z. Majka; M. Murray; J. Natowitz; B. S. Nielsen; C. Nygaard; R. Płaneta; F. Rami; F. Renault; C. Ristea; O. Ristea; D. Röhrich; B. H. Samset; S. J. Sanders; R. A. Scheetz; P. Staszel; T. S. Tveter; F. Videbæk; R. Wada; Z. Yin; H. Yang; I. S. Zgura

doi:10.1103/PhysRevLett.98.252001

Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV

I. Arsene, I. G. Bearden, D. Beavis, S. Bekele, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C. H. Christensen, H. H. Dalsgaard, R. Debbe, J. J. Gaardhøje, K. Hagel, H. Ito, A. Jipa, E. B. Johnson, C. E. Jørgensen, R. Karabowicz, N. Katrynska, E. J. KimT. M. Larsen, J. H. Lee, S. Lindal, G. Løvhøiden, Z. Majka, M. Murray, J. Natowitz, B. S. Nielsen, C. Nygaard, R. Płaneta, F. Rami, F. Renault, C. Ristea, O. Ristea, D. Röhrich, B. H. Samset, S. J. Sanders, R. A. Scheetz, P. Staszel, T. S. Tveter, F. Videbæk, R. Wada, Z. Yin, H. Yang, I. S. Zgura

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Abstract

We present particle spectra for charged hadrons π±, K±, p, and p̄ from pp collisions at s=200GeV measured for the first time at forward rapidities (2.95 and 3.3). The kinematics of these measurements are skewed in a way that probes the small momentum fraction in one of the protons and large fractions in the other. Large proton to pion ratios are observed at values of transverse momentum that extend up to 4GeV/c, where protons have momenta up to 35 GeV. Next-to-leading order perturbative QCD calculations describe the production of pions and kaons well at these rapidities, but fail to account for the large proton yields and small p̄/p ratios.

Original language	English (US)
Article number	252001
Journal	Physical Review Letters
Volume	98
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.98.252001
State	Published - Jun 21 2007

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.98.252001

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Arsene, I., Bearden, I. G., Beavis, D., Bekele, S., Besliu, C., Budick, B., Bøggild, H., Chasman, C., Christensen, C. H., Dalsgaard, H. H., Debbe, R., Gaardhøje, J. J., Hagel, K., Ito, H., Jipa, A., Johnson, E. B., Jørgensen, C. E., Karabowicz, R., Katrynska, N., ... Zgura, I. S. (2007). Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV. Physical Review Letters, 98(25), Article 252001. https://doi.org/10.1103/PhysRevLett.98.252001

Arsene, I, Bearden, IG, Beavis, D, Bekele, S, Besliu, C, Budick, B, Bøggild, H, Chasman, C, Christensen, CH, Dalsgaard, HH, Debbe, R, Gaardhøje, JJ, Hagel, K, Ito, H, Jipa, A, Johnson, EB, Jørgensen, CE, Karabowicz, R, Katrynska, N, Kim, EJ, Larsen, TM, Lee, JH, Lindal, S, Løvhøiden, G, Majka, Z, Murray, M, Natowitz, J, Nielsen, BS, Nygaard, C, Płaneta, R, Rami, F, Renault, F, Ristea, C, Ristea, O, Röhrich, D, Samset, BH, Sanders, SJ, Scheetz, RA, Staszel, P, Tveter, TS, Videbæk, F, Wada, R, Yin, Z, Yang, H & Zgura, IS 2007, 'Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV', Physical Review Letters, vol. 98, no. 25, 252001. https://doi.org/10.1103/PhysRevLett.98.252001

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title = "Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV",

abstract = "We present particle spectra for charged hadrons π±, K±, p, and {\=p} from pp collisions at s=200GeV measured for the first time at forward rapidities (2.95 and 3.3). The kinematics of these measurements are skewed in a way that probes the small momentum fraction in one of the protons and large fractions in the other. Large proton to pion ratios are observed at values of transverse momentum that extend up to 4GeV/c, where protons have momenta up to 35 GeV. Next-to-leading order perturbative QCD calculations describe the production of pions and kaons well at these rapidities, but fail to account for the large proton yields and small {\=p}/p ratios.",

author = "I. Arsene and Bearden, {I. G.} and D. Beavis and S. Bekele and C. Besliu and B. Budick and H. B{\o}ggild and C. Chasman and Christensen, {C. H.} and Dalsgaard, {H. H.} and R. Debbe and Gaardh{\o}je, {J. J.} and K. Hagel and H. Ito and A. Jipa and Johnson, {E. B.} and J{\o}rgensen, {C. E.} and R. Karabowicz and N. Katrynska and Kim, {E. J.} and Larsen, {T. M.} and Lee, {J. H.} and S. Lindal and G. L{\o}vh{\o}iden and Z. Majka and M. Murray and J. Natowitz and Nielsen, {B. S.} and C. Nygaard and R. P{\l}aneta and F. Rami and F. Renault and C. Ristea and O. Ristea and D. R{\"o}hrich and Samset, {B. H.} and Sanders, {S. J.} and Scheetz, {R. A.} and P. Staszel and Tveter, {T. S.} and F. Videb{\ae}k and R. Wada and Z. Yin and H. Yang and Zgura, {I. S.}",

year = "2007",

month = jun,

day = "21",

doi = "10.1103/PhysRevLett.98.252001",

language = "English (US)",

volume = "98",

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TY - JOUR

T1 - Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV

AU - Arsene, I.

AU - Bearden, I. G.

AU - Beavis, D.

AU - Bekele, S.

AU - Besliu, C.

AU - Budick, B.

AU - Bøggild, H.

AU - Chasman, C.

AU - Christensen, C. H.

AU - Dalsgaard, H. H.

AU - Debbe, R.

AU - Gaardhøje, J. J.

AU - Hagel, K.

AU - Ito, H.

AU - Jipa, A.

AU - Johnson, E. B.

AU - Jørgensen, C. E.

AU - Karabowicz, R.

AU - Katrynska, N.

AU - Kim, E. J.

AU - Larsen, T. M.

AU - Lee, J. H.

AU - Lindal, S.

AU - Løvhøiden, G.

AU - Majka, Z.

AU - Murray, M.

AU - Natowitz, J.

AU - Nielsen, B. S.

AU - Nygaard, C.

AU - Płaneta, R.

AU - Rami, F.

AU - Renault, F.

AU - Ristea, C.

AU - Ristea, O.

AU - Röhrich, D.

AU - Samset, B. H.

AU - Sanders, S. J.

AU - Scheetz, R. A.

AU - Staszel, P.

AU - Tveter, T. S.

AU - Videbæk, F.

AU - Wada, R.

AU - Yin, Z.

AU - Yang, H.

AU - Zgura, I. S.

PY - 2007/6/21

Y1 - 2007/6/21

N2 - We present particle spectra for charged hadrons π±, K±, p, and p̄ from pp collisions at s=200GeV measured for the first time at forward rapidities (2.95 and 3.3). The kinematics of these measurements are skewed in a way that probes the small momentum fraction in one of the protons and large fractions in the other. Large proton to pion ratios are observed at values of transverse momentum that extend up to 4GeV/c, where protons have momenta up to 35 GeV. Next-to-leading order perturbative QCD calculations describe the production of pions and kaons well at these rapidities, but fail to account for the large proton yields and small p̄/p ratios.

AB - We present particle spectra for charged hadrons π±, K±, p, and p̄ from pp collisions at s=200GeV measured for the first time at forward rapidities (2.95 and 3.3). The kinematics of these measurements are skewed in a way that probes the small momentum fraction in one of the protons and large fractions in the other. Large proton to pion ratios are observed at values of transverse momentum that extend up to 4GeV/c, where protons have momenta up to 35 GeV. Next-to-leading order perturbative QCD calculations describe the production of pions and kaons well at these rapidities, but fail to account for the large proton yields and small p̄/p ratios.

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U2 - 10.1103/PhysRevLett.98.252001

DO - 10.1103/PhysRevLett.98.252001

M3 - Article

AN - SCOPUS:34547247010

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 252001

ER -

Production of mesons and baryons at high rapidity and high pT in proton-proton collisions at s=200GeV

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