Accessing transversity via J/ψ production in polarized p ↑p̄↑ interactions

M. Anselmino; V. Barone; A. Drago; N. N. Nikolaev

doi:10.1016/j.physletb.2004.05.029

Accessing transversity via J/ψ production in polarized p ^↑p̄^↑ interactions

M. Anselmino
, V. Barone
, A. Drago
, N. N. Nikolaev

Department of Science and Technological Innovation

Research output: Contribution to journal › Article › peer-review

Abstract

We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry A_TT in p ^↑p̄^↑→J/ψX→ℓ ^-ℓ⁺X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/ψ resonance production region, with 30≲s≲45 GeV², both the cross-section and A _TT are expected to be sufficiently large to allow a measurement of h₁^q(x,M²); numerical estimates are given.

Original language	English
Pages (from-to)	97-104
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	594
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2004.05.029
Publication status	Published - 29 Jul 2004

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title = "Accessing transversity via J/ψ production in polarized p ↑{\=p}↑ interactions",

abstract = "We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry ATT in p ↑{\=p}↑→J/ψX→ℓ -ℓ+X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/ψ resonance production region, with 30≲s≲45 GeV2, both the cross-section and A TT are expected to be sufficiently large to allow a measurement of h1q(x,M2); numerical estimates are given.",

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AU - Anselmino, M.

AU - Barone, V.

AU - Drago, A.

AU - Nikolaev, N. N.

PY - 2004/7/29

Y1 - 2004/7/29

N2 - We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry ATT in p ↑p̄↑→J/ψX→ℓ -ℓ+X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/ψ resonance production region, with 30≲s≲45 GeV2, both the cross-section and A TT are expected to be sufficiently large to allow a measurement of h1q(x,M2); numerical estimates are given.

AB - We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry ATT in p ↑p̄↑→J/ψX→ℓ -ℓ+X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/ψ resonance production region, with 30≲s≲45 GeV2, both the cross-section and A TT are expected to be sufficiently large to allow a measurement of h1q(x,M2); numerical estimates are given.

UR - https://www.scopus.com/pages/publications/3042609711

U2 - 10.1016/j.physletb.2004.05.029

DO - 10.1016/j.physletb.2004.05.029

M3 - Article

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EP - 104

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Accessing transversity via J/ψ production in polarized p ^↑p̄^↑ interactions

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