Spinor helicity methods in high-energy factorization: Efficient momentum-space calculations in the Color Glass Condensate formalism

We use the spinor helicity formalism to calculate the cross section for production of three partons of a given polarization in Deep Inelastic Scattering (DIS) off proton and nucleus targets at small Bjorken x. The target proton or nucleus is treated as a classical color field (shock wave) from which...

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Published inNuclear physics. B Vol. 920; no. C; pp. 232 - 255
Main Authors Ayala, Alejandro, Hentschinski, Martin, Jalilian-Marian, Jamal, Tejeda-Yeomans, Maria Elena
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.07.2017
Elsevier
Subjects
NUCLEAR PHYSICS AND RADIATION PHYSICS
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Summary:We use the spinor helicity formalism to calculate the cross section for production of three partons of a given polarization in Deep Inelastic Scattering (DIS) off proton and nucleus targets at small Bjorken x. The target proton or nucleus is treated as a classical color field (shock wave) from which the produced partons scatter multiple times. We reported our result for the final expression for the production cross section and studied the azimuthal angular correlations of the produced partons in [1]. Here we provide the full details of the calculation of the production cross section using the spinor helicity methods.
Bibliography:USDOE
FG02-09ER41620; SC0002307
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2017.03.028