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Title: Hadronic structure in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}

Abstract

We report on a study of the invariant mass spectrum of the hadronic system in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}. This study was performed with data obtained with the CLEO II detector operating at the CESR e{sup +}e{sup -} collider. We present fits to phenomenological models in which resonance parameters associated with the {rho}(770) and {rho}(1450) mesons are determined. The {pi}{sup -}{pi}{sup 0} spectral function inferred from the invariant mass spectrum is compared with data on e{sup +}e{sup -}{yields}{pi}{sup +}{pi}{sup -} as a test of the conserved vector current theorem. We also discuss the implications of our data with regard to estimates of the hadronic contribution to the muon anomalous magnetic moment. (c) 2000 The American Physical Society.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  2. State University of New York at Albany, Albany, New York 12222 (United States) (and others)
Publication Date:
OSTI Identifier:
20216458
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 61; Journal Issue: 11; Other Information: PBD: 1 Jun 2000; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; TAU PARTICLES; PIONS MINUS; PIONS NEUTRAL; TAU NEUTRINOS; ELECTRON-POSITRON INTERACTIONS; RHO-1450 MESONS; RHO-770 MESONS; VECTOR CURRENTS; MASS SPECTRA; MAGNETIC MOMENTS; PARTICLE DECAY; EXPERIMENTAL DATA; THEORETICAL DATA

Citation Formats

Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Mahapatra, R., O'Neill, J. J., Poling, R., Riehle, T., Smith, A., and Ahmed, S. Hadronic structure in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}. United States: N. p., 2000. Web. doi:10.1103/PhysRevD.61.112002.
Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Mahapatra, R., O'Neill, J. J., Poling, R., Riehle, T., Smith, A., & Ahmed, S. Hadronic structure in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}. United States. doi:10.1103/PhysRevD.61.112002.
Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Mahapatra, R., O'Neill, J. J., Poling, R., Riehle, T., Smith, A., and Ahmed, S. Thu . "Hadronic structure in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}". United States. doi:10.1103/PhysRevD.61.112002.
@article{osti_20216458,
title = {Hadronic structure in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}},
author = {Anderson, S. and Frolov, V. V. and Kubota, Y. and Lee, S. J. and Mahapatra, R. and O'Neill, J. J. and Poling, R. and Riehle, T. and Smith, A. and Ahmed, S.},
abstractNote = {We report on a study of the invariant mass spectrum of the hadronic system in the decay {tau}{sup -}{yields}{pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}. This study was performed with data obtained with the CLEO II detector operating at the CESR e{sup +}e{sup -} collider. We present fits to phenomenological models in which resonance parameters associated with the {rho}(770) and {rho}(1450) mesons are determined. The {pi}{sup -}{pi}{sup 0} spectral function inferred from the invariant mass spectrum is compared with data on e{sup +}e{sup -}{yields}{pi}{sup +}{pi}{sup -} as a test of the conserved vector current theorem. We also discuss the implications of our data with regard to estimates of the hadronic contribution to the muon anomalous magnetic moment. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevD.61.112002},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 11,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}