Khoze, V. A. and Martin, A. D. and Ryskin, M. G. (2020) 'Bethe phase including proton excitations.', Physical review D., 101 (1). 016018.
We evaluate the contribution of inelastic intermediate states (such as p → N excitations) to the phase between the one-photon-exchange and the “nuclear” high energy pp scattering amplitudes as t → 0, caused by multiphoton diagrams. It turns out to be rather small—much smaller than to have any influence on the experimental accuracy of the measurements of ρ, defined to be the ratio of the real to imaginary parts of the forward nuclear amplitude.
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|Publisher Web site:||https://doi.org/10.1103/PhysRevD.101.016018|
|Publisher statement:||Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.|
|Date accepted:||No date available|
|Date deposited:||12 February 2020|
|Date of first online publication:||30 January 2020|
|Date first made open access:||12 February 2020|
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