A study of the polarized structure function gp1 (x, Q2) and the polarized gluon distribution Δg(x, Q2) at HERA

A. De Roeck; A. Deshpande; V. W. Hughes; J. Lichtenstadt; G. Rädel

doi:10.1007/pl00021612

A study of the polarized structure function g^p₁ (x, Q²) and the polarized gluon distribution Δg(x, Q²) at HERA

A. De Roeck^*, A. Deshpande, V. W. Hughes, J. Lichtenstadt, G. Rädel

^*Corresponding author for this work

School of Physics and Astronomy

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

30 Scopus citations

Abstract

We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-cursive Greek chi behavior of the polarized structure function g₁, and will reduce the uncertainty in the determination of the first moment of the polarized gluon distribution Δg(cursive Greek chi,Q²) obtained from the QCD analysis of g₁ in NLO Furthermore, using asymmetries for di-jet events from a polarized HERA would substantially reduce the uncertainty in the shape of Δg(cursive Greek chi,Q²). Use of the information on Δg(cursive Greek chi, Q²) from the di-jet analysis in conjunction with the NLO QCD analysis of g₁ will provide an accurate determination of Δg(cursive Greek chi, Q²) and its first moment.

Original language	English
Pages (from-to)	121-131
Number of pages	11
Journal	European Physical Journal C
Volume	6
Issue number	1
DOIs	https://doi.org/10.1007/pl00021612
State	Published - 1999

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title = "A study of the polarized structure function gp1 (x, Q2) and the polarized gluon distribution Δg(x, Q2) at HERA",

abstract = "We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-cursive Greek chi behavior of the polarized structure function g1, and will reduce the uncertainty in the determination of the first moment of the polarized gluon distribution Δg(cursive Greek chi,Q2) obtained from the QCD analysis of g1 in NLO Furthermore, using asymmetries for di-jet events from a polarized HERA would substantially reduce the uncertainty in the shape of Δg(cursive Greek chi,Q2). Use of the information on Δg(cursive Greek chi, Q2) from the di-jet analysis in conjunction with the NLO QCD analysis of g1 will provide an accurate determination of Δg(cursive Greek chi, Q2) and its first moment.",

author = "{De Roeck}, A. and A. Deshpande and Hughes, {V. W.} and J. Lichtenstadt and G. R{\"a}del",

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AU - De Roeck, A.

AU - Deshpande, A.

AU - Hughes, V. W.

AU - Lichtenstadt, J.

AU - Rädel, G.

PY - 1999

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N2 - We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-cursive Greek chi behavior of the polarized structure function g1, and will reduce the uncertainty in the determination of the first moment of the polarized gluon distribution Δg(cursive Greek chi,Q2) obtained from the QCD analysis of g1 in NLO Furthermore, using asymmetries for di-jet events from a polarized HERA would substantially reduce the uncertainty in the shape of Δg(cursive Greek chi,Q2). Use of the information on Δg(cursive Greek chi, Q2) from the di-jet analysis in conjunction with the NLO QCD analysis of g1 will provide an accurate determination of Δg(cursive Greek chi, Q2) and its first moment.

AB - We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-cursive Greek chi behavior of the polarized structure function g1, and will reduce the uncertainty in the determination of the first moment of the polarized gluon distribution Δg(cursive Greek chi,Q2) obtained from the QCD analysis of g1 in NLO Furthermore, using asymmetries for di-jet events from a polarized HERA would substantially reduce the uncertainty in the shape of Δg(cursive Greek chi,Q2). Use of the information on Δg(cursive Greek chi, Q2) from the di-jet analysis in conjunction with the NLO QCD analysis of g1 will provide an accurate determination of Δg(cursive Greek chi, Q2) and its first moment.

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A study of the polarized structure function g^p₁ (x, Q²) and the polarized gluon distribution Δg(x, Q²) at HERA

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