The study of the proton-proton collisions at the beam momentum 1628 MeV/c

TL;DR

This paper investigates proton-proton collisions at 1628 MeV/c, analyzing pion production reactions using maximum likelihood methods to identify dominant initial partial waves and improve understanding of the underlying nuclear interactions.

Contribution

It provides a detailed analysis of pion production at a specific energy, identifying key initial partial waves involved in the process, which advances the understanding of proton-proton collision dynamics.

Findings

Dominant initial partial waves identified: $^{3}P_{2}$, $^{3}P_{1}$, $^{3}P_{0}$, $^{1}D_{2}$, $^{3}F_{2}$

Analysis extends previous data to higher energy at 1628 MeV/c

Utilizes event-by-event maximum likelihood method for data analysis

Abstract

The detailed investigation of the single pion production reactions $pp\to pn\pi^{+}$ and $pp\to pp\pi^{o}$ at the incident proton momentum 1628 MeV/c has been carried out. The data are analyzed in the framework of the event-by-event maximum likelihood method together with the $pp\to pp\pi^{0}$ data measured earlier in the energy region below 1 GeV. At 1628 MeV/c the largest contributions stem from the $^{3}P_{2}$, $^{3}P_{1}$, $^{3}P_{0}$, $^{1}D_{2}$ and $^{3}F_{2}$ initial partial waves.