Hot spots and gluon field fluctuations as causes of eccentricity in small systems
Jan 11, 2021
23 pages
Published in:
- Phys.Rev.D 103 (2021) 9, 094025
- Published: May 22, 2021
e-Print:
- 2101.03791 [hep-ph]
View in:
Citations per year
Abstract: (APS)
We calculate eccentricities in high energy proton-nucleus collisions, by calculating correlation functions of the energy density field of the glasma immediately after the collision event at proper time τ=0+. We separately consider the effects of color charge and geometrical hot spot fluctuations, analytically performing the averages over both in a dilute-dense limit. We show that geometric fluctuations of hot spots inside the proton are the dominant source of eccentricity whereas color charge fluctuations only give a negligible correction. The size and number of hot spots are the most important parameters characterizing the eccentricities.Note:
- 21 pages, 9 figures
- Strong Interactions
- charge: color
- fluctuation: geometrical
- charge: fluctuation
- energy: correlation function
- energy: density
- effect: color
- energy: high
- p nucleus: scattering
- glasma
References(69)
Figures(20)
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