Study of the $$\tau^- to 3h^- 2h^+ \nu_\tau$$ Decay
Journal Article
·
· Phys.Rev.D72:072001,2005
OSTI ID:890918
The branching fraction of the {tau}{sup -} {yields} 3h{sup -} 2h{sup +} {nu}{sub {tau}} decay (h = {pi}, K) is measured with the BABAR detector to be (8.56 {+-} 0.05 {+-} 0.42) x 10{sup -4}, where the first error is statistical and the second systematic. The observed structure of this decay is significantly different from the phase space prediction, with the {rho} resonance playing a strong role. The decay {tau}{sup -} {yields} f{sub 1}(1285){pi}{sup -}{nu}{sub {tau}}, with the f{sub 1}(1285) meson decaying to four charged pions, is observed and the branching fraction is measured to be (3.9 {+-} 0.7 {+-} 0.5) x 10{sup -4}.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC)
- Sponsoring Organization:
- US DOE Office of Science (DOE SC)
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 890918
- Report Number(s):
- SLAC-PUB-11155; hep-ex/0505004
- Journal Information:
- Phys.Rev.D72:072001,2005, Journal Name: Phys.Rev.D72:072001,2005
- Country of Publication:
- United States
- Language:
- English
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