Spin-dependent Pomeron and Odderon in elastic proton–proton scattering
(2020) In European Physical Journal C 80(5).- Abstract
We introduce a new model of near-forward elastic proton–(anti)proton scattering at high energy based on the modern formulation of Pomeron and Odderon in terms of Wilson lines and generalized transverse momentum dependent distributions. We compute the helicity-dependent elastic amplitudes ϕ1 , 2 , 3 , 4 , 5 in this model and study their energy dependence from the nonlinear small-x evolution equations. While both Pomeron and Odderon contribute to helicity-flip processes in general, in the forward limit t= 0 only the double helicity-flip amplitude ϕ2, dominated by the spin-dependent Odderon, survives. This may affect the extraction of the ρ parameter as well as the total cross section in the LHC energy domain and... (More)
We introduce a new model of near-forward elastic proton–(anti)proton scattering at high energy based on the modern formulation of Pomeron and Odderon in terms of Wilson lines and generalized transverse momentum dependent distributions. We compute the helicity-dependent elastic amplitudes ϕ1 , 2 , 3 , 4 , 5 in this model and study their energy dependence from the nonlinear small-x evolution equations. While both Pomeron and Odderon contribute to helicity-flip processes in general, in the forward limit t= 0 only the double helicity-flip amplitude ϕ2, dominated by the spin-dependent Odderon, survives. This may affect the extraction of the ρ parameter as well as the total cross section in the LHC energy domain and beyond.
(Less)
- author
- Hagiwara, Yoshikazu ; Hatta, Yoshitaka ; Pasechnik, Roman LU and Zhou, Jian
- organization
- publishing date
- 2020-05-15
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 80
- issue
- 5
- article number
- 427
- publisher
- Springer
- external identifiers
-
- scopus:85084835606
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-020-8007-6
- language
- English
- LU publication?
- yes
- id
- f6987b2c-a4b9-4380-ac20-8e729ca69521
- date added to LUP
- 2020-06-17 14:36:33
- date last changed
- 2024-03-20 11:04:39
@article{f6987b2c-a4b9-4380-ac20-8e729ca69521, abstract = {{<p>We introduce a new model of near-forward elastic proton–(anti)proton scattering at high energy based on the modern formulation of Pomeron and Odderon in terms of Wilson lines and generalized transverse momentum dependent distributions. We compute the helicity-dependent elastic amplitudes ϕ<sub>1 , 2 , 3 , 4 , 5</sub> in this model and study their energy dependence from the nonlinear small-x evolution equations. While both Pomeron and Odderon contribute to helicity-flip processes in general, in the forward limit t= 0 only the double helicity-flip amplitude ϕ<sub>2</sub>, dominated by the spin-dependent Odderon, survives. This may affect the extraction of the ρ parameter as well as the total cross section in the LHC energy domain and beyond.</p>}}, author = {{Hagiwara, Yoshikazu and Hatta, Yoshitaka and Pasechnik, Roman and Zhou, Jian}}, issn = {{1434-6044}}, language = {{eng}}, month = {{05}}, number = {{5}}, publisher = {{Springer}}, series = {{European Physical Journal C}}, title = {{Spin-dependent Pomeron and Odderon in elastic proton–proton scattering}}, url = {{http://dx.doi.org/10.1140/epjc/s10052-020-8007-6}}, doi = {{10.1140/epjc/s10052-020-8007-6}}, volume = {{80}}, year = {{2020}}, }