Measurement of ψ(2S) polarisation in pp collisions at √s = 7 TeV

LHCb Collaboration

doi:10.1140/epjc/s10052-014-2872-9

Measurement of ψ(2S) polarisation in pp collisions at √s = 7 TeV

LHCb Collaboration

Physics and Astronomy

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Abstract

The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→μ+μ− decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected by the LHCb detector at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5<pT<15GeV/c and 2.0<y<4.5 , and is compared to theoretical models. No significant polarisation is observed.

Original language	English
Article number	2872
Journal	European Physical Journal C
Volume	74
Issue number	5
DOIs	https://doi.org/10.1140/epjc/s10052-014-2872-9
Publication status	Published - 20 May 2014

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Bifani_Measurement_European_Physical_Journal_C_2014
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title = "Measurement of ψ(2S) polarisation in pp collisions at √s = 7 TeV",

abstract = "The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→μ+μ− decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected by the LHCb detector at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5",

author = "\{LHCb Collaboration\} and S. Bifani and Kenyon, \{I. R.\} and C. Lazzeroni and J. Mccarthy and L. Pescatore and Watson, \{N. K.\}",

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T1 - Measurement of ψ(2S) polarisation in pp collisions at √s = 7 TeV

AU - LHCb Collaboration

AU - Bifani, S.

AU - Kenyon, I. R.

AU - Lazzeroni, C.

AU - Mccarthy, J.

AU - Pescatore, L.

AU - Watson, N. K.

PY - 2014/5/20

Y1 - 2014/5/20

N2 - The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→μ+μ− decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected by the LHCb detector at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5

AB - The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→μ+μ− decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb −1 , collected by the LHCb detector at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5

U2 - 10.1140/epjc/s10052-014-2872-9

DO - 10.1140/epjc/s10052-014-2872-9

M3 - Article

SN - 1434-6044

VL - 74

JO - European Physical Journal C

JF - European Physical Journal C

IS - 5

M1 - 2872

ER -

Measurement of ψ(2S) polarisation in pp collisions at √s = 7 TeV

Abstract

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