A measurement of the branching fractions of the f1(1285) and f1(1420) produced in central pp interactions at 450 GeV/c

TL;DR

This paper measures the decay branching fractions of the f1(1285) and f1(1420) mesons produced in central proton-proton interactions at 450 GeV/c, providing new experimental data on their decay modes and production mechanisms.

Contribution

It presents the first comprehensive measurement of all major decay modes of both mesons in a single experiment, confirming their production via double Pomeron exchange.

Findings

Branching fractions for all major decay modes determined

Both mesons produced by double Pomeron exchange

First simultaneous measurement of f1(1285) and f1(1420) decay modes

Abstract

A study of the f1(1285) and f1(1420) produced in central pp interactions has been performed. For the first time in a single experiment the branching fractions of both mesons in all major decay modes have been determined. Both the f1(1285) and f1(1420) are consistent with being produced by double Pomeron exchange.