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Lévy imaging of elastic scattering and proton hollowness at 13 TeV

Csörgo, T. ; Pasechnik, R. LU and Ster, A. LU (2019) 2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019 In Proceedings of Science 364.
Abstract

The shape of elastic differential cross section within and beyond the diffractive cone at 13 TeV pp collision energy has been shown to be precisely described by the Lévy series expansion in whole available range of momentum transfers. This way, the crucial information about the real and imaginary parts of the elastic amplitude has been obtained resulting in precision reconstruction of the proton inelasticity profile. We have found that the profile function P(b) undergoes a qualitative change at √s ≈ 7 TeV collision energy. At small values of the impact parameter b a P(b) ≈ 1 plateaux develops, which becomes depressed at larger energies, such that a shallow minimum is formed near b = 0. We have evaluated the corresponding error bar and... (More)

The shape of elastic differential cross section within and beyond the diffractive cone at 13 TeV pp collision energy has been shown to be precisely described by the Lévy series expansion in whole available range of momentum transfers. This way, the crucial information about the real and imaginary parts of the elastic amplitude has been obtained resulting in precision reconstruction of the proton inelasticity profile. We have found that the profile function P(b) undergoes a qualitative change at √s ≈ 7 TeV collision energy. At small values of the impact parameter b a P(b) ≈ 1 plateaux develops, which becomes depressed at larger energies, such that a shallow minimum is formed near b = 0. We have evaluated the corresponding error bar and found such a hotly debated proton hollowness (or “black-ring”) effect with beyond 5σ significance.

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author
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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
European Physical Society Conference on High Energy Physics (EPS-HEP2019)
series title
Proceedings of Science
volume
364
article number
532
conference name
2019 European Physical Society Conference on High Energy Physics, EPS-HEP 2019
conference location
Ghent, Belgium
conference dates
2019-07-10 - 2019-07-17
external identifiers
  • scopus:85098918804
ISSN
1824-8039
DOI
10.22323/1.364.0532
language
English
LU publication?
yes
id
7a474bf9-b4b8-4e52-b07a-f527f0d987ac
date added to LUP
2021-01-18 14:36:09
date last changed
2023-01-01 04:10:31
@inproceedings{7a474bf9-b4b8-4e52-b07a-f527f0d987ac,
  abstract     = {{<p>The shape of elastic differential cross section within and beyond the diffractive cone at 13 TeV pp collision energy has been shown to be precisely described by the Lévy series expansion in whole available range of momentum transfers. This way, the crucial information about the real and imaginary parts of the elastic amplitude has been obtained resulting in precision reconstruction of the proton inelasticity profile. We have found that the profile function P(b) undergoes a qualitative change at √s ≈ 7 TeV collision energy. At small values of the impact parameter b a P(b) ≈ 1 plateaux develops, which becomes depressed at larger energies, such that a shallow minimum is formed near b = 0. We have evaluated the corresponding error bar and found such a hotly debated proton hollowness (or “black-ring”) effect with beyond 5σ significance.</p>}},
  author       = {{Csörgo, T. and Pasechnik, R. and Ster, A.}},
  booktitle    = {{European Physical Society Conference on High Energy Physics (EPS-HEP2019)}},
  issn         = {{1824-8039}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{Lévy imaging of elastic scattering and proton hollowness at 13 TeV}},
  url          = {{http://dx.doi.org/10.22323/1.364.0532}},
  doi          = {{10.22323/1.364.0532}},
  volume       = {{364}},
  year         = {{2019}},
}