Study of the reaction {pi}{sup -}p{yields}{eta}{pi} deg. n at 32, 38 and 100 GeV/c

Journal Article · Fri May 29 04:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56046· OSTI ID:21185734

Lednev, A ^[1]

---

1. Institute for High Energy Physics, 142284, Protvino (Russian Federation)

The reaction {pi}{sup -}p{yields}{eta}{pi} deg. n has been studied at 32, 38 and 100 GeV/c {pi}{sup -} beam momenta with the GAMS experimental setups. A partial wave analysis has been performed in the effective mass range 0.77{<=}M{sub {eta}}{sub {pi}}{sub deg.} <1.82 GeV/c{sup 2}. A peak in the D{sub +} wave, attributed to a{sub 2}, is clearly seen. The phase difference between D{sub +} and P{sub +} waves changes rapidly in the a{sub 2} region. A significant P{sub +} wave contribution is observed at the a{sub 2} mass and above but it does not show a clear resonant behaviour. No considerable contribution of the unnatural parity exchange waves is observed, exception being made for the S and D{sub 0} waves in the a{sub 0} and a{sub 2} mass regions respectively.

• OSTI ID: 21185734
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 432; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D WAVES
EFFECTIVE MASS
ETA MESONS
GEV RANGE
INCLUSIVE INTERACTIONS
MASS SPECTRA
NEUTRONS
P WAVES
PARITY
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION-PROTON INTERACTIONS
PIONS NEUTRAL
PROTONS
REST MASS