Inclusive. eta. production in. tau. decays

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We have searched for inclusive eta production in tau decays using a sample of 2553 events of e{sup +}e{sup minus} {yields} {tau}{sup +}{tau}{sup minus} in the one-three topology. The data were taken with the High Resolution Spectrometer at {radical}s = 29 GeV. Our results are based on an analysis of the {pi}{sup +}{pi}{sup minus} invariant mass spectrum to find the narrow peak resulting from the decay sequence {tau} {yields} {eta}x and {eta} {yields} {pi}{sup +}{pi}{sup minus}{pi}{degree}. No clear peak is observed and a 90% confidence upper limit on the process {tau} {yields} {eta}x of 2.1% is found. For decays {tau} ... continued below

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Pages: (12 p)

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Abachi, S.; Akerlof, C.; Baringer, P.; Blockus, D.; Brabson, B.; Brom, J.M. et al. January 1, 1987.

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Description

We have searched for inclusive eta production in tau decays using a sample of 2553 events of e{sup +}e{sup minus} {yields} {tau}{sup +}{tau}{sup minus} in the one-three topology. The data were taken with the High Resolution Spectrometer at {radical}s = 29 GeV. Our results are based on an analysis of the {pi}{sup +}{pi}{sup minus} invariant mass spectrum to find the narrow peak resulting from the decay sequence {tau} {yields} {eta}x and {eta} {yields} {pi}{sup +}{pi}{sup minus}{pi}{degree}. No clear peak is observed and a 90% confidence upper limit on the process {tau} {yields} {eta}x of 2.1% is found. For decays {tau} {yields} {eta}{eta}x the 90% confidence upper limit is 1.3%. Our best limit on {tau} {yields} {eta}{eta}x is obtained from tau decay to five charged particles with a 90% confidence level upper limit of 0.5%.

Physical Description

Pages: (12 p)

Notes

NTIS, PC A03/MF A01

Source

  • International symposium on lepton and photon interactions at high energies, Hamburg (Germany), 27-31 Jul 1987

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  • Other: DE88009968
  • Report No.: ANL-HEP-CP-87-70
  • Report No.: PU--87-601
  • Report No.: IUHEE--87-09
  • Report No.: UM-HE--87-16
  • Report No.: CONF-870797--14
  • Report No.: CONF-870797--
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5574342
  • Archival Resource Key: ark:/67531/metadc1092755

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1987

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 23, 2018, 5:45 p.m.

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Abachi, S.; Akerlof, C.; Baringer, P.; Blockus, D.; Brabson, B.; Brom, J.M. et al. Inclusive. eta. production in. tau. decays, article, January 1, 1987; United States. (digital.library.unt.edu/ark:/67531/metadc1092755/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.