Extracting many-body correlators of saturated gluons with precision from inclusive photon + dijet final states in deeply inelastic scattering

Roy, Kaushik; Venugopalan, Raju

doi:10.1103/PhysRevD.101.071505

Title: Extracting many-body correlators of saturated gluons with precision from inclusive $photon + dijet$ final states in deeply inelastic scattering

Journal Article · Wed Apr 29 00:00:00 EDT 2020 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.101.071505· OSTI ID:1616501

; Venugopalan, Raju

We highlight the principal results of a computation [1] in the Color Glass Condensate effective field theory (CGC EFT) of the next-to-leading order (NLO) impact factor for inclusive photon+dijet production at Bjorken 1 in deeply inelastic electron-nucleus (e+A DIS) collisions. When combined with extant results for next-to-leading log xBj JIMWLK renormalization group (RG) evolution of gauge invariant two-point ("dipole") and four-point ("quadrupole") correlators of lightlike Wilson lines, the inclusive photon+dijet e+A DIS cross-section can be determined to ~ 10% accuracy. Our computation simultaneously provides the ingredients to compute fully inclusive DIS, inclusive photon, inclusive dijet and inclusive photon+jet channels to the same accuracy. This makes feasible quantitative extraction of many-body correlators of saturated gluons and precise determination of the saturation scale QS,A(xBj) at a future Electron-Ion Collider. An interesting feature of our NLO result is the structure of the violation of the soft gluon theorem in the Regge limit. Another is the appearance in gluon emission of time-like non-global logs which also satisfy JIMWLK RG evolution

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704

OSTI ID:: 1616501

Alternate ID(s):: OSTI ID: 1631011

Report Number(s):: BNL-215953-2020-JAAM; PRVDAQ; 071505

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 101 Journal Issue: 7; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 12 works

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