Resonant structure of {tau}{yields}3{pi}{pi}{sup 0}{nu}{sub {tau}} and {tau}{yields}{omega}{pi}{nu}{sub {tau}} decays

Journal Article · Sat Apr 01 04:00:00 EST 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.61.072003· OSTI ID:20215948

Edwards, K W ^[1]; Janicek, R ^[2]; Patel, P M ^[2]; Sadoff, A J ^[3]; Ammar, R ^[4]; Baringer, P ^[4]; Bean, A ^[4]; Besson, D ^[4]; Davis, R ^[4]; Kotov, S ^[4]

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1. Carleton University, Ottawa, Ontario, Canada K1S 5B6 (Canada)
2. McGill University, Montreal, Quebec, Canada H3A 2T8 (Canada)
3. Ithaca College, Ithaca, New York 14850 (United States)
4. University of Kansas, Lawrence, Kansas 66045 (United States)

The resonant structure of the four pion final state in the decay {tau}{yields}3{pi}{pi}{sup 0}{nu}{sub {tau}} has been analyzed using 4.27 million {tau}{sup +}{tau}{sup -} pairs collected by the CLEO II experiment at the Cornell Electron Storage Ring. A partial wave analysis of the resonant structure of the {tau}{yields}3{pi}{pi}{sup 0}{nu}{sub {tau}} decay has been performed; the spectral decomposition of the four pion system is dominated by the {omega}{pi} and a{sub 1}{pi} final states. The mass and width of the {rho}{sup '} resonance have been extracted from a fit to the {tau}{yields}{omega}{pi}{nu}{sub {tau}} spectral function. We have searched for second class currents in the decay {tau}{yields}{omega}{pi}{nu}{sub {tau}} using spin-parity analysis and established an upper limit on the non-vector current contribution. (c) 2000 The American Physical Society.

• OSTI ID: 20215948
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 61; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
EXPERIMENTAL DATA
HADRONIC PARTICLE DECAY
PARITY
PARTIAL WAVES
PIONS
SPIN ECHO
TAU NEUTRINOS
TAU PARTICLES