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

Physical Review Letters
T LappiR Venugopalan

Abstract

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 multiparton Fock states in the nuclear wave functions. In particular, the saturation scale that characterizes this multiparton dynamics is significantly larger in central events relative to minimum bias events. As an application, we study 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.

References

Feb 1, 1986·Physical Review C: Nuclear Physics·J Aichelin
Jan 1, 1996·Physical Review C: Nuclear Physics·S HirenzakiE Oset
Jul 5, 2002·Physical Review Letters·Anthony J BaltzJoakim Nystrand
Jan 7, 2003·Physical Review Letters·C AdlerUNKNOWN STAR Collaboration
Feb 1, 2008·Physical Review Letters·H KowalskiR Venugopalan
Dec 10, 2013·Physical Review Letters·A AdareUNKNOWN PHENIX Collaboration
Sep 23, 2014·Physical Review Letters·Björn Schenke, Raju Venugopalan
Jan 1, 2013·The European Physical Journal. C, Particles and Fields·UNKNOWN ALICE CollaborationM Zyzak

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Citations

Jul 31, 2020·Reports on Progress in Physics·Heikki Mäntysaari
Aug 16, 2016·Physical Review Letters·Heikki Mäntysaari, Björn Schenke

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