Light vector meson production in pp collisions at vs = 7 TeV

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

Light vector meson production in pp collisions at vs = 7 TeV

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

Experimental Particle Physics

44 Citations (Scopus)

Abstract

The ALICE experiment has measured low-mass dimuon production in pp collisions at s=7TeV in the dimuon rapidity region 2.5<y<4. The observed dimuon mass spectrum is described as a superposition of resonance decays (η, ρ, ω, η^', φ) into muons and semi-leptonic decays of charmed mesons. The measured production cross sections for ω and φ are σ_ω(1<p_t<5GeV/c, 2.5<y<4)=5.28±0.54(stat)±0.49(syst)mb and σ_φ(1<p_t<5GeV/c, 2.5<y<4)=0.940±0.084(stat)±0.076(syst)mb. The differential cross sections d²σ/dydp_t are extracted as a function of p_t for ω and φ. The ratio between the ρ and ω cross section is obtained. Results for the φ are compared with other measurements at the same energy and with predictions by models.

Original language	English
Journal	Physics Letters B
Volume	710
Issue number	4-5
Pages (from-to)	557-568
ISSN	0370-2693
Publication status	Published - 20 Apr 2012

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http://dx.doi.org/10.1016/j.physletb.2012.03.038

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title = "Light vector meson production in pp collisions at vs = 7 TeV",

abstract = "The ALICE experiment has measured low-mass dimuon production in pp collisions at s=7TeV in the dimuon rapidity region 2.5', φ) into muons and semi-leptonic decays of charmed mesons. The measured production cross sections for ω and φ are σω(1t<5GeV/c, 2.5φ(1t<5GeV/c, 2.52σ/dydpt are extracted as a function of pt for ω and φ. The ratio between the ρ and ω cross section is obtained. Results for the φ are compared with other measurements at the same energy and with predictions by models.",

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

year = "2012",

month = apr,

day = "20",

language = "English",

volume = "710",

pages = "557--568",

journal = "Physics Letters B: Particle Physics, Nuclear Physics and Cosmology",

issn = "0370-2693",

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TY - JOUR

T1 - Light vector meson production in pp collisions at vs = 7 TeV

AU - Abelev, B.

AU - Bøggild, Hans

AU - Bearden, Ian

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2012/4/20

Y1 - 2012/4/20

N2 - The ALICE experiment has measured low-mass dimuon production in pp collisions at s=7TeV in the dimuon rapidity region 2.5', φ) into muons and semi-leptonic decays of charmed mesons. The measured production cross sections for ω and φ are σω(1t<5GeV/c, 2.5φ(1t<5GeV/c, 2.52σ/dydpt are extracted as a function of pt for ω and φ. The ratio between the ρ and ω cross section is obtained. Results for the φ are compared with other measurements at the same energy and with predictions by models.

AB - The ALICE experiment has measured low-mass dimuon production in pp collisions at s=7TeV in the dimuon rapidity region 2.5', φ) into muons and semi-leptonic decays of charmed mesons. The measured production cross sections for ω and φ are σω(1t<5GeV/c, 2.5φ(1t<5GeV/c, 2.52σ/dydpt are extracted as a function of pt for ω and φ. The ratio between the ρ and ω cross section is obtained. Results for the φ are compared with other measurements at the same energy and with predictions by models.

M3 - Journal article

SN - 0370-2693

VL - 710

SP - 557

EP - 568

JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

IS - 4-5

ER -

Light vector meson production in pp collisions at vs = 7 TeV

Abstract

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