Evidence for exotic meson production in {pi}{sup {minus}}p interactions at 18thinspGeV/c

Journal Article · Fri May 01 04:00:00 EDT 1998 · AIP Conference Proceedings

OSTI ID:646441

A general overview of the latest E852 results is presented. The description of the experimental apparatus is given. Data sample of 1.3 billion events collected so far by the experiment is summarized. A J{sup PC}=1{sup {minus}+} exotic state of mass (1370{plus_minus}16{sub {minus}30}{sup +50})thinspMeV/c{sup 2} and width (385{plus_minus}40{sub {minus}105}{sup +65})thinspMeV/c{sup 2} is observed in the reaction {pi}{sup {minus}}p{r_arrow}{eta}{pi}{sup {minus}}p. A strong 1{sup {minus}+} signal is present in the {eta}{pi}{sup 0}, {pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}, {pi}{sup {minus}}{pi}{sup 0}{pi}{sup 0}, {eta}{sup {prime}}{pi}{sup {minus}} and f{sub 1}(1285){pi}{sup {minus}} final states. In {eta}{eta}, a 0{sup ++} state around 1.5thinspGeV/c{sup 2} is seen. A brief summary of the preliminary results for the {omega}{pi}{sup {minus}}{pi}{sup 0}, {omega}{pi}{sup 0}, {omega}{eta} and {eta}{pi}{sup +}{pi}{sup {minus}} final states is included. {copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 646441
• Report Number(s): CONF-970842--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 432; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GEV RANGE 10-100
MASS
MASS SPECTRA
MESONS
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PION MINUS-PROTON INTERACTIONS
SCALAR MESONS
VECTOR MESONS