Production of K*(892)(0) and phi(1020) in pp collisions at root s=7 TeV

B. Abelev; J. Adam; Ian Bearden; Hans Bøggild; Christian Holm Christensen; Hans Hjersing Dalsgaard; Jens Jørgen Gaardhøje; Kristjan Herlache Gulbrandsen; Alexander Colliander Hansen; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1140/epjc/s10052-012-2183-y

Production of K*(892)(0) and phi(1020) in pp collisions at root s=7 TeV

B. Abelev, J. Adam, Ian Bearden, Hans Bøggild, Christian Holm Christensen, Hans Hjersing Dalsgaard, Jens Jørgen Gaardhøje, Kristjan Herlache Gulbrandsen, Alexander Colliander Hansen, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

Experimental Particle Physics

100 Citations (Scopus)

Abstract

The production of K^*(892)⁰ and φ{symbol}(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d²N/dydp_T at midrapidity {pipe}y{pipe}<0. 5 in the range 0<p_T<6 GeV/c for K^*(892)⁰ and 0. 4<p_T<6 GeV/c for φ{symbol}(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Ω baryons measured previously by ALICE at √s = 7 TeV, the ratios K^*/K^-, φ{symbol}/K^*, φ{symbol}/K^-, φ{symbol}/π^-, and Ω + Ω)φ are presented. The values of the K^*/K^-, φ{symbol}/K^* and φ{symbol}/K^- ratios are similar to those found at lower centre-of-mass energies. In contrast, the φ{symbol}/π^- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Ω + \Ω)φ ratio in the p_T range 1-5 GeV/c is found to be in good agreement with the prediction of the HIJING/BB̄ v2. 0 model with a strong colour field.

Original language	English
Journal	European Physical Journal C
Volume	72
Issue number	10
Pages (from-to)	2183
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-012-2183-y
Publication status	Published - Nov 2012

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@article{7ee198e096ea4dfaafaeaaabf8aed5a4,

title = "Production of K*(892)(0) and phi(1020) in pp collisions at root s=7 TeV",

abstract = "The production of K*(892)0 and φ{symbol}(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d2N/dydpT at midrapidity {pipe}y{pipe}<0. 5 in the range 0T<6 GeV/c for K*(892)0 and 0. 4T<6 GeV/c for φ{symbol}(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Ω baryons measured previously by ALICE at √s = 7 TeV, the ratios K*/K-, φ{symbol}/K*, φ{symbol}/K-, φ{symbol}/π-, and Ω + Ω)φ are presented. The values of the K*/K-, φ{symbol}/K* and φ{symbol}/K- ratios are similar to those found at lower centre-of-mass energies. In contrast, the φ{symbol}/π- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Ω + \Ω)φ ratio in the pT range 1-5 GeV/c is found to be in good agreement with the prediction of the HIJING/B{\=B} v2. 0 model with a strong colour field.",

author = "B. Abelev and J. Adam and Ian Bearden and Hans B{\o}ggild and Christensen, {Christian Holm} and Dalsgaard, {Hans Hjersing} and Gaardh{\o}je, {Jens J{\o}rgen} and Gulbrandsen, {Kristjan Herlache} and Hansen, {Alexander Colliander} and Nielsen, {B{\o}rge Svane} and Casper Nygaard and Carsten S{\o}gaard",

year = "2012",

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doi = "10.1140/epjc/s10052-012-2183-y",

language = "English",

volume = "72",

pages = "2183",

journal = "The European Physical Journal C: Particles and Fields",

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T1 - Production of K*(892)(0) and phi(1020) in pp collisions at root s=7 TeV

AU - Abelev, B.

AU - Adam, J.

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gaardhøje, Jens Jørgen

AU - Gulbrandsen, Kristjan Herlache

AU - Hansen, Alexander Colliander

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2012/11

Y1 - 2012/11

N2 - The production of K*(892)0 and φ{symbol}(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d2N/dydpT at midrapidity {pipe}y{pipe}<0. 5 in the range 0T<6 GeV/c for K*(892)0 and 0. 4T<6 GeV/c for φ{symbol}(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Ω baryons measured previously by ALICE at √s = 7 TeV, the ratios K*/K-, φ{symbol}/K*, φ{symbol}/K-, φ{symbol}/π-, and Ω + Ω)φ are presented. The values of the K*/K-, φ{symbol}/K* and φ{symbol}/K- ratios are similar to those found at lower centre-of-mass energies. In contrast, the φ{symbol}/π- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Ω + \Ω)φ ratio in the pT range 1-5 GeV/c is found to be in good agreement with the prediction of the HIJING/BB̄ v2. 0 model with a strong colour field.

AB - The production of K*(892)0 and φ{symbol}(1020) in pp collisions at √s=7 TeV was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d2N/dydpT at midrapidity {pipe}y{pipe}<0. 5 in the range 0T<6 GeV/c for K*(892)0 and 0. 4T<6 GeV/c for φ{symbol}(1020) are reported and compared to model predictions. Using the yield of pions, kaons, and Ω baryons measured previously by ALICE at √s = 7 TeV, the ratios K*/K-, φ{symbol}/K*, φ{symbol}/K-, φ{symbol}/π-, and Ω + Ω)φ are presented. The values of the K*/K-, φ{symbol}/K* and φ{symbol}/K- ratios are similar to those found at lower centre-of-mass energies. In contrast, the φ{symbol}/π- ratio, which has been observed to increase with energy, seems to saturate above 200 GeV. The (Ω + \Ω)φ ratio in the pT range 1-5 GeV/c is found to be in good agreement with the prediction of the HIJING/BB̄ v2. 0 model with a strong colour field.

U2 - 10.1140/epjc/s10052-012-2183-y

DO - 10.1140/epjc/s10052-012-2183-y

M3 - Journal article

SN - 1434-6044

VL - 72

SP - 2183

JO - The European Physical Journal C: Particles and Fields

JF - The European Physical Journal C: Particles and Fields

IS - 10

ER -

Production of K*(892)(0) and phi(1020) in pp collisions at root s=7 TeV

Abstract

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