New evidence for a narrow state of mass 2.02 GeV/c2

6533b7dbfe1ef96bd12708a2

RESEARCH PRODUCT

New evidence for a narrow state of mass 2.02 GeV/c2

Ara Grigoryan Antonio Ferrer V.f. Perepelitsa P. Sonderegger

subject

Nuclear physics Baryon Physics Nuclear and High Energy Physics Particle physics Large Hadron Collider Spectrometer State (functional analysis)

description

Abstract We report evidence for the existence of a narrow p p state with a mass of 2.02 GeV/c2 and a width of about 0.02 GeV/c2, produced centrally in π+p(π−p) interactions at 20(12) GeV/c in several final states, proceeding via baryon exchange mechanism, and that could be interpreted as a baryonium candidate. The data come from the analysis of WA56 experiment made at the CERN Ω spectrometer.

year	journal	country	edition	language
1993-06-01	Nuclear Physics A

https://doi.org/10.1016/0375-9474(93)90394-d

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