Work

Bethe phase including proton excitations

Year: 2020

Type: article

Abstract: We evaluate the contribution of inelastic intermediate states (such as $p\ensuremath{\rightarrow}{N}^{*}$ excitations) to the phase between the one-photon-exchange and the ``nuclear'' high energy $pp$ scattering amplitudes as $t\ensuremath{\rightarrow}0$, 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 $\ensuremath{\rho}$, defined to be the ratio of the real to imaginary parts of the forward nuclear amplitude.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.101.016018

Authors: V. A. Khoze, A. D. Martin, M. G. Ryskin

Institutions: Durham University, Kurchatov Institute, Petersburg Nuclear Physics Institute

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Durham University, Science and Technology Facilities Council

Award: G3763781085