Data on pbar-p -> etaprime-pizero-pizero for masses 1960 to 2410 MeV/c^2

TL;DR

This paper reports experimental data on antiproton-proton collisions producing eta prime and neutral pions, revealing a new resonance with specific quantum numbers and mass, contributing to understanding meson production and resonance states.

Contribution

It provides new experimental measurements of pbar-p to eta prime pi0 pi0 reactions across a range of momenta, identifying a previously unobserved resonance with specific properties.

Findings

Observation of strong S-wave production of f_2(1270)-eta prime

Identification of a resonance at 2248 MeV with J^{PC} = 2^{-+}

Resonance width measured as 280 MeV

Abstract

Data on pbar-p -> etaprime(958)-pizero-pizero are presented at nine pbar momenta from 600 to 1940 MeV/c. Strong S-wave production of f_2(1270)-etaprime is observed, requiring a J^{PC} = 2^{-+} resonance with mass M = 2248+-20 MeV, Gamma = 280+-20 MeV.