Published March 1, 2002 | Version v1
Miscellaneous

Exotic and qq-bar resonances in the pi+pi-pi- system produced in pi-p collisions at 18 GeV/c

Description

A partial-wave analysis of the reaction pi-p-->pi+pi-pi-p at 18 GeV/c has been performed on a data sample of 250 000 events obtained in the Brookhaven experiment E852. The well-known a1(1260), a2(1320) and pi2(1670) resonant states are observed. The existence of the pi(1800), a1(1700) and a4(2040) states is confirmed. The a3(1874) state is also observed. The exotic 1-+ pi1(1600) state produced in the natural parity exchange process is found to decay in the rho(770)pi- channel. A mass-dependent fit results in a resonance mass of 1593±8-47+29 MeV/c2 and a width of 168±20-12+150 MeV/c2

Availability note (English)

Available from Thomas Jefferson National Accelerator Facility, Newport News, VA (US); Brookhaven National Lab., Upton, NY (US)

Additional details

Publishing Information

Imprint Pagination
1 p.
Report number
JLAB-PHY--01-34

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
33016382
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
EXOTIC RESONANCES; GEV RANGE; PARITY; PARTIAL WAVES; PION MINUS REACTIONS; PIONS MINUS; PIONS PLUS; PROTONS; QUARKONIUM
Descriptors DEC
BARYONS; BOSONS; CHARGED-PARTICLE REACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; HADRONS; MESON REACTIONS; MESONS; NUCLEAR REACTIONS; NUCLEONS; PARTICLE PROPERTIES; PION REACTIONS; PIONS; PSEUDOSCALAR MESONS; RESONANCE PARTICLES

Optional Information

Contract/Grant/Project number
AC05-84ER40150
Notes
Published in Phys. Rev. D 65, 072001 (2002)
Funding organization
USDOE Office of Energy Research ER (United States)
Secondary number(s)
DOE/ER--40150-2044