Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}

Pedlar, T K; Cronin-Hennessy, D; Gao, K Y; Hietala, J; Kubota, Y; Klein, T; Lang, B W; Poling, R; Scott, A W; Smith, A; Zweber, P; Dobbs, S; Metreveli, Z; Seth, K K; Tomaradze, A; Ernst, J; Ecklund, K M; Severini, H; Love, W; Savinov, V

doi:10.1103/PHYSREVD.76.072002

Title: Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}

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Abstract

We examine e{sup +}e{sup -}{yields}D{sub s}{sup -}D{sub s}*{sup +} and D{sub s}*{sup -}D{sub s}{sup +} interactions at 4170 MeV using the CLEO-c detector in order to measure the decay constant f{sub D{sub s}{sup +}}. We use the D{sub s}{sup +}{yields}l{sup +}{nu} channel, where the l{sup +} designates either a {mu}{sup +} or a {tau}{sup +}, when the {tau}{sup +}{yields}{pi}{sup +}{nu}. Analyzing both modes independently, we determine B(D{sub s}{sup +}{yields}{mu}{sup +}{nu})=(0.594{+-}0.066{+-}0.031)%, and B(D{sub s}{sup +}{yields}{tau}{sup +}{nu})=(8.0{+-}1.3{+-}0.4)%. We also analyze them simultaneously to find an effective value of B{sup eff}(D{sub s}{sup +}{yields}{mu}{sup +}{nu})=(0.638{+-}0.059{+-}0.033)% and extract f{sub D{sub s}{sup +}}=274{+-}13{+-}7 MeV. Combining with our previous determination of B(D{sup +}{yields}{mu}{sup +}{nu}), we also find the ratio f{sub D{sub s}{sup +}}/f{sub D{sup +}}=1.23{+-}0.11{+-}0.04. We compare to current theoretical estimates. Finally, we find B(D{sub s}{sup +}{yields}e{sup +}{nu})<1.3x10{sup -4} at 90% confidence level.

Authors:

Pedlar, T K ^[1]; Cronin-Hennessy, D; Gao, K Y; Hietala, J; Kubota, Y; Klein, T; Lang, B W; Poling, R; Scott, A W; Smith, A; Zweber, P ^[2]; Dobbs, S; Metreveli, Z; Seth, K K; Tomaradze, A ^[3]; Ernst, J ^[4]; Ecklund, K M ^[5]; Severini, H ^[6]; Love, W; Savinov, V ^[7]

Luther College, Decorah, Iowa 52101 (United States)
University of Minnesota, Minneapolis, Minnesota 55455 (United States)
Northwestern University, Evanston, Illinois 60208 (United States)
State University of New York at Albany, Albany, New York 12222 (United States)
State University of New York at Buffalo, Buffalo, New York 14260 (United States)
University of Oklahoma, Norman, Oklahoma 73019 (United States)
University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)

Publication Date:: Mon Oct 01 00:00:00 EDT 2007

OSTI Identifier:: 21032303

Resource Type:: Journal Article

Journal Name:: Physical Review. D, Particles Fields

Additional Journal Information:: Journal Volume: 76; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.76.072002; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). CLEO Collaboration; Journal ID: ISSN 0556-2821

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; CESR STORAGE RING; COMPARATIVE EVALUATIONS; D S MESONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; MEV RANGE; MULTIPARTICLE SPECTROMETERS; MUONS PLUS; NEUTRINOS; PARTICLE IDENTIFICATION; POSITRONS; STANDARD MODEL; TAU PARTICLES

Citation Formats


                    Pedlar, T K, Cronin-Hennessy, D, Gao, K Y, Hietala, J, Kubota, Y, Klein, T, Lang, B W, Poling, R, Scott, A W, Smith, A, Zweber, P, Dobbs, S, Metreveli, Z, Seth, K K, Tomaradze, A, Ernst, J, Ecklund, K M, Severini, H, Love, W, and Savinov, V. Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}.  United States: N. p., 2007. 
        Web.  doi:10.1103/PHYSREVD.76.072002.

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                    Pedlar, T K, Cronin-Hennessy, D, Gao, K Y, Hietala, J, Kubota, Y, Klein, T, Lang, B W, Poling, R, Scott, A W, Smith, A, Zweber, P, Dobbs, S, Metreveli, Z, Seth, K K, Tomaradze, A, Ernst, J, Ecklund, K M, Severini, H, Love, W, & Savinov, V. Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}.  United States.  https://doi.org/10.1103/PHYSREVD.76.072002

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                    Pedlar, T K, Cronin-Hennessy, D, Gao, K Y, Hietala, J, Kubota, Y, Klein, T, Lang, B W, Poling, R, Scott, A W, Smith, A, Zweber, P, Dobbs, S, Metreveli, Z, Seth, K K, Tomaradze, A, Ernst, J, Ecklund, K M, Severini, H, Love, W, and Savinov, V. 2007.  
        "Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}".  United States.  https://doi.org/10.1103/PHYSREVD.76.072002.

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@article{osti_21032303,

  title        = {Measurement of B(D{sub s}{sup +}{yields}l{sup +}{nu}) and the decay constant f{sub D{sub S}{sup +}}},

  author       = {Pedlar, T K and Cronin-Hennessy, D and Gao, K Y and Hietala, J and Kubota, Y and Klein, T and Lang, B W and Poling, R and Scott, A W and Smith, A and Zweber, P and Dobbs, S and Metreveli, Z and Seth, K K and Tomaradze, A and Ernst, J and Ecklund, K M and Severini, H and Love, W and Savinov, V},

  abstractNote = {We examine e{sup +}e{sup -}{yields}D{sub s}{sup -}D{sub s}*{sup +} and D{sub s}*{sup -}D{sub s}{sup +} interactions at 4170 MeV using the CLEO-c detector in order to measure the decay constant f{sub D{sub s}{sup +}}. We use the D{sub s}{sup +}{yields}l{sup +}{nu} channel, where the l{sup +} designates either a {mu}{sup +} or a {tau}{sup +}, when the {tau}{sup +}{yields}{pi}{sup +}{nu}. Analyzing both modes independently, we determine B(D{sub s}{sup +}{yields}{mu}{sup +}{nu})=(0.594{+-}0.066{+-}0.031)%, and B(D{sub s}{sup +}{yields}{tau}{sup +}{nu})=(8.0{+-}1.3{+-}0.4)%. We also analyze them simultaneously to find an effective value of B{sup eff}(D{sub s}{sup +}{yields}{mu}{sup +}{nu})=(0.638{+-}0.059{+-}0.033)% and extract f{sub D{sub s}{sup +}}=274{+-}13{+-}7 MeV. Combining with our previous determination of B(D{sup +}{yields}{mu}{sup +}{nu}), we also find the ratio f{sub D{sub s}{sup +}}/f{sub D{sup +}}=1.23{+-}0.11{+-}0.04. We compare to current theoretical estimates. Finally, we find B(D{sub s}{sup +}{yields}e{sup +}{nu})<1.3x10{sup -4} at 90% confidence level.},

  doi          = {10.1103/PHYSREVD.76.072002},

  url          = {https://www.osti.gov/biblio/21032303},
  journal      = {Physical Review. D, Particles Fields},

  issn         = {0556-2821},

  number       = 7,

  volume       = 76,

  place        = {United States},

  year         = {Mon Oct 01 00:00:00 EDT 2007},

  month        = {Mon Oct 01 00:00:00 EDT 2007}

}

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