Measurement of the branching ratios for the decays τ→hadron π0ν and τ→hadron π0π0ν

D. Antreasyan; H. W. Bartels; D. Besset; Ch Bieler; J. K. Bienlein; A. Bizzeti; E. D. Bloom; I. Brock; K. Brockmüller; R. Cabenda; A. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; R. Cowan; D. Coyne; A. Engler; K. Fairfield; G. Folger; A. Fridman; J. Gaiser; D. Gelphman; G. Glaser; G. Godfrey; K. Graaf; F. H. Heimlich; F. H. Heinsius; R. Hofstadter; J. Irion; Z. Jakubowski; H. Janssen; K. Karch; S. Keh; T. Kiel; H. Kilian; I. Kirkbride; T. Kloiber; M. Kobel; W. Koch; A. C. König; K. Königsmann; R. W. Krämer; S. Krüger; G. Landi; R. Lee; S. Leffler; R. Lekebusch; A. M. Litke; W. Lockman; S. Lowe; B. Lurz; D. Marlow; H. Marsiske; W. Maschmann; P. McBride; H. Meyer; B. Muryn; F. Messing; W. J. Metzger; B. Monteleoni; R. Nernst; B. Niczyporuk; G. Nowak; C. Peck; P. G. Pelfer; B. Pollock; F. C. Porter; D. Prindle; P. Ratoff; M. Reidenbach; B. Renger; C. Rippich; M. Scheer; P. Schmitt; J. Schotanus; J. Schütte; A. Schwarz; D. Sievers; T. Skwarnicki; V. Stock; K. Strauch; U. Strohbusch; J. Tompkins; H. J. Trost; B. van Uitert; R. T. Van de Walle; H. Vogel; A. Voigt; U. Volland; K. Wachs; K. Wacker; W. Walk; H. Wegener; D. A. Williams; P. Zschorsch

doi:10.1016/0370-2693(91)90161-I

Measurement of the branching ratios for the decays τ→hadron π⁰ν and τ→hadron π⁰π⁰ν

D. Antreasyan, H. W. Bartels, D. Besset, Ch Bieler, J. K. Bienlein, A. Bizzeti, E. D. Bloom, I. Brock, K. Brockmüller, R. Cabenda, A. Cartacci, M. Cavalli-Sforza, R. Clare, A. Compagnucci, G. Conforto, S. Cooper, R. Cowan, D. Coyne, A. Engler, K. FairfieldG. Folger, A. Fridman, J. Gaiser, D. Gelphman, G. Glaser, G. Godfrey, K. Graaf, F. H. Heimlich, F. H. Heinsius, R. Hofstadter, J. Irion, Z. Jakubowski, H. Janssen, K. Karch, S. Keh, T. Kiel, H. Kilian, I. Kirkbride, T. Kloiber, M. Kobel, W. Koch, A. C. König, K. Königsmann, R. W. Krämer, S. Krüger, G. Landi, R. Lee, S. Leffler, R. Lekebusch, A. M. Litke, W. Lockman, S. Lowe, B. Lurz, D. Marlow, H. Marsiske, W. Maschmann, P. McBride, H. Meyer, B. Muryn, F. Messing, W. J. Metzger, B. Monteleoni, R. Nernst, B. Niczyporuk, G. Nowak, C. Peck, P. G. Pelfer, B. Pollock, F. C. Porter, D. Prindle, P. Ratoff, M. Reidenbach, B. Renger, C. Rippich, M. Scheer, P. Schmitt, J. Schotanus, J. Schütte, A. Schwarz, D. Sievers, T. Skwarnicki, V. Stock, K. Strauch, U. Strohbusch, J. Tompkins, H. J. Trost, B. van Uitert, R. T. Van de Walle, H. Vogel, A. Voigt, U. Volland, K. Wachs, K. Wacker, W. Walk, H. Wegener, D. A. Williams, P. Zschorsch

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Abstract

The Crystal Ball detector at the DORIS II storage ring at DESY has been used to measure the branching ratios for the decay modes τ^±→h^±π⁰ν and τ^±→h^±π⁰π ⁰ν, where h^± is any charged hadron. The results are BR(τ^±→h^±π⁰ ν) = (22.0±0.8±1.9)%, BR(τ^±→h^±π⁰ π⁰ν) = (5.7±0.5_+1.0^-1.7)%. The first result is in good agreement with the present world average. The decay mode h^±π⁰π⁰ν is reconstructed in τ decays for the first time. Its branching ratio, however, is somewhat lower than the corresponding world average, and therefore tends to increase the one-prong problem.

Original language	English (US)
Pages (from-to)	216-224
Number of pages	9
Journal	Physics Letters B
Volume	259
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(91)90161-I
State	Published - Apr 18 1991
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(91)90161-I

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Antreasyan, D., Bartels, H. W., Besset, D., Bieler, C., Bienlein, J. K., Bizzeti, A., Bloom, E. D., Brock, I., Brockmüller, K., Cabenda, R., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Cowan, R., Coyne, D., Engler, A., ... Zschorsch, P. (1991). Measurement of the branching ratios for the decays τ→hadron π⁰ν and τ→hadron π⁰π⁰ν. Physics Letters B, 259(1-2), 216-224. https://doi.org/10.1016/0370-2693(91)90161-I

Antreasyan, D, Bartels, HW, Besset, D, Bieler, C, Bienlein, JK, Bizzeti, A, Bloom, ED, Brock, I, Brockmüller, K, Cabenda, R, Cartacci, A, Cavalli-Sforza, M, Clare, R, Compagnucci, A, Conforto, G, Cooper, S, Cowan, R, Coyne, D, Engler, A, Fairfield, K, Folger, G, Fridman, A, Gaiser, J, Gelphman, D, Glaser, G, Godfrey, G, Graaf, K, Heimlich, FH, Heinsius, FH, Hofstadter, R, Irion, J, Jakubowski, Z, Janssen, H, Karch, K, Keh, S, Kiel, T, Kilian, H, Kirkbride, I, Kloiber, T, Kobel, M, Koch, W, König, AC, Königsmann, K, Krämer, RW, Krüger, S, Landi, G, Lee, R, Leffler, S, Lekebusch, R, Litke, AM, Lockman, W, Lowe, S, Lurz, B, Marlow, D, Marsiske, H, Maschmann, W, McBride, P, Meyer, H, Muryn, B, Messing, F, Metzger, WJ, Monteleoni, B, Nernst, R, Niczyporuk, B, Nowak, G, Peck, C, Pelfer, PG, Pollock, B, Porter, FC, Prindle, D, Ratoff, P, Reidenbach, M, Renger, B, Rippich, C, Scheer, M, Schmitt, P, Schotanus, J, Schütte, J, Schwarz, A, Sievers, D, Skwarnicki, T, Stock, V, Strauch, K, Strohbusch, U, Tompkins, J, Trost, HJ, van Uitert, B, Van de Walle, RT, Vogel, H, Voigt, A, Volland, U, Wachs, K, Wacker, K, Walk, W, Wegener, H, Williams, DA & Zschorsch, P 1991, 'Measurement of the branching ratios for the decays τ→hadron π⁰ν and τ→hadron π⁰π⁰ν', Physics Letters B, vol. 259, no. 1-2, pp. 216-224. https://doi.org/10.1016/0370-2693(91)90161-I

@article{d362290c222f4bc5a2a224955726e580,

title = "Measurement of the branching ratios for the decays τ→hadron π0ν and τ→hadron π0π0ν",

abstract = "The Crystal Ball detector at the DORIS II storage ring at DESY has been used to measure the branching ratios for the decay modes τ±→h±π0ν and τ±→h±π0π 0ν, where h± is any charged hadron. The results are BR(τ±→h±π0 ν) = (22.0±0.8±1.9)%, BR(τ±→h±π0 π0ν) = (5.7±0.5+1.0-1.7)%. The first result is in good agreement with the present world average. The decay mode h±π0π0ν is reconstructed in τ decays for the first time. Its branching ratio, however, is somewhat lower than the corresponding world average, and therefore tends to increase the one-prong problem.",

author = "D. Antreasyan and Bartels, {H. W.} and D. Besset and Ch Bieler and Bienlein, {J. K.} and A. Bizzeti and Bloom, {E. D.} and I. Brock and K. Brockm{\"u}ller and R. Cabenda and A. Cartacci and M. Cavalli-Sforza and R. Clare and A. Compagnucci and G. Conforto and S. Cooper and R. Cowan and D. Coyne and A. Engler and K. Fairfield and G. Folger and A. Fridman and J. Gaiser and D. Gelphman and G. Glaser and G. Godfrey and K. Graaf and Heimlich, {F. H.} and Heinsius, {F. H.} and R. Hofstadter and J. Irion and Z. Jakubowski and H. Janssen and K. Karch and S. Keh and T. Kiel and H. Kilian and I. Kirkbride and T. Kloiber and M. Kobel and W. Koch and K{\"o}nig, {A. C.} and K. K{\"o}nigsmann and Kr{\"a}mer, {R. W.} and S. Kr{\"u}ger and G. Landi and R. Lee and S. Leffler and R. Lekebusch and Litke, {A. M.} and W. Lockman and S. Lowe and B. Lurz and D. Marlow and H. Marsiske and W. Maschmann and P. McBride and H. Meyer and B. Muryn and F. Messing and Metzger, {W. J.} and B. Monteleoni and R. Nernst and B. Niczyporuk and G. Nowak and C. Peck and Pelfer, {P. G.} and B. Pollock and Porter, {F. C.} and D. Prindle and P. Ratoff and M. Reidenbach and B. Renger and C. Rippich and M. Scheer and P. Schmitt and J. Schotanus and J. Sch{\"u}tte and A. Schwarz and D. Sievers and T. Skwarnicki and V. Stock and K. Strauch and U. Strohbusch and J. Tompkins and Trost, {H. J.} and {van Uitert}, B. and {Van de Walle}, {R. T.} and H. Vogel and A. Voigt and U. Volland and K. Wachs and K. Wacker and W. Walk and H. Wegener and Williams, {D. A.} and P. Zschorsch",

year = "1991",

month = apr,

day = "18",

doi = "10.1016/0370-2693(91)90161-I",

language = "English (US)",

volume = "259",

pages = "216--224",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Measurement of the branching ratios for the decays τ→hadron π0ν and τ→hadron π0π0ν

AU - Antreasyan, D.

AU - Bartels, H. W.

AU - Besset, D.

AU - Bieler, Ch

AU - Bienlein, J. K.

AU - Bizzeti, A.

AU - Bloom, E. D.

AU - Brock, I.

AU - Brockmüller, K.

AU - Cabenda, R.

AU - Cartacci, A.

AU - Cavalli-Sforza, M.

AU - Clare, R.

AU - Compagnucci, A.

AU - Conforto, G.

AU - Cooper, S.

AU - Cowan, R.

AU - Coyne, D.

AU - Engler, A.

AU - Fairfield, K.

AU - Folger, G.

AU - Fridman, A.

AU - Gaiser, J.

AU - Gelphman, D.

AU - Glaser, G.

AU - Godfrey, G.

AU - Graaf, K.

AU - Heimlich, F. H.

AU - Heinsius, F. H.

AU - Hofstadter, R.

AU - Irion, J.

AU - Jakubowski, Z.

AU - Janssen, H.

AU - Karch, K.

AU - Keh, S.

AU - Kiel, T.

AU - Kilian, H.

AU - Kirkbride, I.

AU - Kloiber, T.

AU - Kobel, M.

AU - Koch, W.

AU - König, A. C.

AU - Königsmann, K.

AU - Krämer, R. W.

AU - Krüger, S.

AU - Landi, G.

AU - Lee, R.

AU - Leffler, S.

AU - Lekebusch, R.

AU - Litke, A. M.

AU - Lockman, W.

AU - Lowe, S.

AU - Lurz, B.

AU - Marlow, D.

AU - Marsiske, H.

AU - Maschmann, W.

AU - McBride, P.

AU - Meyer, H.

AU - Muryn, B.

AU - Messing, F.

AU - Metzger, W. J.

AU - Monteleoni, B.

AU - Nernst, R.

AU - Niczyporuk, B.

AU - Nowak, G.

AU - Peck, C.

AU - Pelfer, P. G.

AU - Pollock, B.

AU - Porter, F. C.

AU - Prindle, D.

AU - Ratoff, P.

AU - Reidenbach, M.

AU - Renger, B.

AU - Rippich, C.

AU - Scheer, M.

AU - Schmitt, P.

AU - Schotanus, J.

AU - Schütte, J.

AU - Schwarz, A.

AU - Sievers, D.

AU - Skwarnicki, T.

AU - Stock, V.

AU - Strauch, K.

AU - Strohbusch, U.

AU - Tompkins, J.

AU - Trost, H. J.

AU - van Uitert, B.

AU - Van de Walle, R. T.

AU - Vogel, H.

AU - Voigt, A.

AU - Volland, U.

AU - Wachs, K.

AU - Wacker, K.

AU - Walk, W.

AU - Wegener, H.

AU - Williams, D. A.

AU - Zschorsch, P.

PY - 1991/4/18

Y1 - 1991/4/18

N2 - The Crystal Ball detector at the DORIS II storage ring at DESY has been used to measure the branching ratios for the decay modes τ±→h±π0ν and τ±→h±π0π 0ν, where h± is any charged hadron. The results are BR(τ±→h±π0 ν) = (22.0±0.8±1.9)%, BR(τ±→h±π0 π0ν) = (5.7±0.5+1.0-1.7)%. The first result is in good agreement with the present world average. The decay mode h±π0π0ν is reconstructed in τ decays for the first time. Its branching ratio, however, is somewhat lower than the corresponding world average, and therefore tends to increase the one-prong problem.

AB - The Crystal Ball detector at the DORIS II storage ring at DESY has been used to measure the branching ratios for the decay modes τ±→h±π0ν and τ±→h±π0π 0ν, where h± is any charged hadron. The results are BR(τ±→h±π0 ν) = (22.0±0.8±1.9)%, BR(τ±→h±π0 π0ν) = (5.7±0.5+1.0-1.7)%. The first result is in good agreement with the present world average. The decay mode h±π0π0ν is reconstructed in τ decays for the first time. Its branching ratio, however, is somewhat lower than the corresponding world average, and therefore tends to increase the one-prong problem.

UR - http://www.scopus.com/inward/record.url?scp=0011629753&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0011629753&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(91)90161-I

DO - 10.1016/0370-2693(91)90161-I

M3 - Article

AN - SCOPUS:0011629753

SN - 0370-2693

VL - 259

SP - 216

EP - 224

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

Measurement of the branching ratios for the decays τ→hadron π⁰ν and τ→hadron π⁰π⁰ν

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