Deuteron as substitute for neutron target

Seminars

VBLHEP Specialized Seminar

A. M. Baldin Relativistic nuclear physics and polarization phenomena #816

Date and Time: Wednesday, 14 February 2024, at 11:00 AM

Venue: bld. 3, Conference hall, Veksler and Baldin Laboratory of High Energy Physics; online on Volna

Seminar topic: “Deuteron as a substitute for a neutron target”

Speaker: Nikolay Pivnyuk (Kurchatov Institute)

Abstract:

Is a deuteron a good substitute for a free neutron target? For the first time in high energy physics, the final state of the reaction with the slow (missing) proton (that is at the region of so called Quasi-Free kinematics) was analyzed essentially in the framework of the 3-body Phase Space. We present detailed analysis of the γd → πˉppS reaction at the initial energy range Eγ = 1.0-3.5 GeV, and missing slow proton momentum ps < 0.2 GeV/c. Data was taken by CLAS detector at Jefferson LAB during the g10 run period.

Strong correlations between soft (d → npS) and hard (γn → πˉp) parts of the reaction amplitude have been clearly observed.