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

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.
Authors:
 [1] ;  [2] ;  [3]
  1. Univ. of Jyvaskyla, Jyvaskyla (Finland); Univ. of Helsinki (Finland)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Jyvaskyla, Jyvaskyla (Finland)
Publication Date:
OSTI Identifier:
1201348
Report Number(s):
BNL--107947-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: KB0301020; KB0301020
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 8; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS electron-ion collider