Ballistic protons in incoherent exclusive vector meson production as a measure of rare parton fluctuations at an electron-ion collider

Lappi, T.; Venugopalan, R.; Mantysaari, H.

doi:10.1103/PhysRevLett.114.082301

Title: Ballistic protons in incoherent exclusive vector meson production as a measure of rare parton fluctuations at an electron-ion collider

Journal Article · Wed Feb 25 00:00:00 EST 2015 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.114.082301· OSTI ID:1201348

Lappi, T. ^[1]; Venugopalan, R. ^[2]; Mantysaari, H. ^[3]

Univ. of Jyvaskyla, Jyvaskyla (Finland); Univ. of Helsinki (Finland)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Univ. of Jyvaskyla, Jyvaskyla (Finland)

We argue that the proton multiplicities measured in Roman pot detectors at an electron ion collider can be used to determine centrality classes in incoherent diffractive scattering. Incoherent diffraction probes the fluctuations in the interaction strengths of multi-parton Fock states in the nuclear wavefunctions. In particular, the saturation scale that characterizes this multi-parton dynamics is significantly larger in central events relative to minimum bias events. As an application, we examine the centrality dependence of incoherent diffractive vector meson production. We identify an observable which is simultaneously very sensitive to centrality triggered parton fluctuations and insensitive to details of the model.

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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:: SC00112704; AC02-98CH10886

OSTI ID:: 1201348

Alternate ID(s):: OSTI ID: 1180222

Report Number(s):: BNL-107947-2015-JA; PRLTAO; R&D Project: KB0301020; KB0301020

Journal Information:: Physical Review Letters, Vol. 114, Issue 8; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 24 works

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