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Title: Inclusive diffraction in future electron-proton and electron-ion colliders

Abstract

We analyse the possibilities for the study of inclusive diffraction offered by future electron– proton/nucleus colliders in the TeV regime, the Large Hadron-electron Collider as an upgrade of the HL-LHC and the Future Circular Collider in electron-hadron mode. Compared to ep collisions at HERA, we find an extension of the available kinematic range in x by a factor of order 20 and of the maximum Q2 by a factor of order 100 for LHeC, while the FCC version would extend the coverage by a further order of magnitude both in x and Q2. This translates into a range of available momentum fraction of the diffractive exchange with respect to the hadron (ξ), down to 10-4 - 10-5 for a wide range of the momentum fraction of the parton with respect to the diffractive exchange (β). Using the same framework and methodology employed in previous studies at HERA, considering only the experimental uncertainties and not those stemming from the functional form of the initial conditions or other ones of theoretical origin, and under very conservative assumptions for the luminosities and systematic errors, we find an improvement in the extraction of diffractive parton densities from fits to reduced cross sections for inclusivemore » coherent diffraction in ep by about an order of magnitude. For eA, we also perform the simulations for the Electron Ion Collider. We find that an extraction of the currently unmeasured nuclear diffractive parton densities is possible with similar accuracy to that in ep.« less

Authors:
ORCiD logo; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); Poland National Science Center
OSTI Identifier:
1571312
Alternate Identifier(s):
OSTI ID: 1631079
Grant/Contract Number:  
SC-0002145; MDM-2016-0692; SC0002145
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Armesto, Néstor, Newman, Paul R., Słomiński, Wojciech, and Staśto, Anna M. Inclusive diffraction in future electron-proton and electron-ion colliders. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.074022.
Armesto, Néstor, Newman, Paul R., Słomiński, Wojciech, & Staśto, Anna M. Inclusive diffraction in future electron-proton and electron-ion colliders. United States. doi:10.1103/PhysRevD.100.074022.
Armesto, Néstor, Newman, Paul R., Słomiński, Wojciech, and Staśto, Anna M. Mon . "Inclusive diffraction in future electron-proton and electron-ion colliders". United States. doi:10.1103/PhysRevD.100.074022.
@article{osti_1571312,
title = {Inclusive diffraction in future electron-proton and electron-ion colliders},
author = {Armesto, Néstor and Newman, Paul R. and Słomiński, Wojciech and Staśto, Anna M.},
abstractNote = {We analyse the possibilities for the study of inclusive diffraction offered by future electron– proton/nucleus colliders in the TeV regime, the Large Hadron-electron Collider as an upgrade of the HL-LHC and the Future Circular Collider in electron-hadron mode. Compared to ep collisions at HERA, we find an extension of the available kinematic range in x by a factor of order 20 and of the maximum Q2 by a factor of order 100 for LHeC, while the FCC version would extend the coverage by a further order of magnitude both in x and Q2. This translates into a range of available momentum fraction of the diffractive exchange with respect to the hadron (ξ), down to 10-4 - 10-5 for a wide range of the momentum fraction of the parton with respect to the diffractive exchange (β). Using the same framework and methodology employed in previous studies at HERA, considering only the experimental uncertainties and not those stemming from the functional form of the initial conditions or other ones of theoretical origin, and under very conservative assumptions for the luminosities and systematic errors, we find an improvement in the extraction of diffractive parton densities from fits to reduced cross sections for inclusive coherent diffraction in ep by about an order of magnitude. For eA, we also perform the simulations for the Electron Ion Collider. We find that an extraction of the currently unmeasured nuclear diffractive parton densities is possible with similar accuracy to that in ep.},
doi = {10.1103/PhysRevD.100.074022},
journal = {Physical Review D},
number = 7,
volume = 100,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.100.074022

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Cited by: 3 works
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