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ETDEWEB   /       /    Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}

Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}

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Abstract

Exclusive semileptonic B decays with a D{sup *+} meson in the final state have been studied using the ARGUS detector at the DORIS II storage ring. The branching ratio for the decay anti B{sup 0} {yields} D{sup *+} l{sup -}anti {nu}, where l{sup -} is either e{sup -} or {mu}{sup -}, has been measured to be (5.2 {+-} 0.5 {+-} 0.6)%. A significant rate for the decay anti B {+-} D{sup **} l{sup -}anti {nu} has been observed. From an angular analysis of the cascade anti B{sup 0} {+-} D{sup *+}({yields} D{sup 0} {pi}{sup +})l{sup -}anti {nu} the forward-backward asymmetry A{sub FB} and the D{sup *+} polarization parameter {alpha} have been determined to be A{sub FB} = 0.20 {+-} 0.08 {+-} 0.06 and {alpha} = 1.1 {+-} 0.4 {+-} 0.2. (orig.).
Authors:
Albrecht, H; Ehrlichmann, H; Hamacher, T; Hofmann, R P; Kirchhoff, T; Nau, A; Nowak, S; Schroeder, H; Schulz, H D; Walter, M; Wurth, R; [1]  Appuhn, R D; Hast, C; Kolanoski, H; Lange, A; Lindner, A; Mankel, R; Schieber, M; Siegmund, T; Spaan, B; Thurn, H; Toepfer, D; Walther, A; Wegener, D; [2]  Bittner, M; Eckstein, P; [3]  Paulini, M; Reim, K; Wegener, H; [4]  Mundt, R; Oest, T; Reiner, R; Schmidt-Parzefall, W; [5]  Funk, W; Stiewe, J; Werner, S; [6]  Ehret, K; Hofmann, W; Huepper, A; Khan, S; Knoepfle, K T; Spengler, J; [7]  Britton, D I; Charlesworth, C E.K.; Edwards, K W; Hyatt, E R.F.; Kapitza, H; Krieger, P; MacFarlane, D B; Patel, P M; Prentice, J D; Saull, P R.B.; Tzamariudaki, K; Van de Water, R G; Yoon, T S; [8]  Ressing, D; Schmidtler, M; Schneider, M; Schubert, K R; Strahl, K; Waldi, R; Weseler, S; [9]  Kernel, G; Krizan, P; Kriznic, E; Podobnik, T; Zivko, T; [10]  Balagura, V; Belyaev, I; Chechelnitsky, S; Danilov, M; Droutskoy, A; Gershtein, Yu; Golutvin, A; Gorelov, I; Kostina, G; Lubimov, V; Pakhlov, P; Ratnikov, F; Semenov, S; Shibaev, V; Soloshenko, V; Tichomirov, I; Zaitsev, Yu; [11]  ARGUS Collaboration
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Dortmund Univ. (Germany). Inst. fuer Physik
  3. Technische Univ. Dresden (Germany). Inst. fuer Kern- und Teilchenphysik
  4. Erlangen-Nuernberg Univ., Erlangen (Germany). Physikalisches Inst.
  5. Hamburg Univ. (Germany). 2. Inst. fuer Experimentalphysik
  6. Heidelberg Univ. (Germany). Inst. fuer Hochenergiephysik
  7. Max-Planck-Inst. fuer Kernphysik, Heidelberg (Germany)
  8. Inst. of Particle Physics (Canada)
  9. Karlsruhe Univ. (Germany). Inst. fuer Experimentelle Kernphysik
  10. Ljubljana Univ. (Slovenia). Inst. J. Stefan
  11. Inst. of Theoretical and Experimental Physics, Moscow (Russia)
Publication Date:
Oct 01, 1992
Product Type:
Technical Report
Report Number:
DESY-92-146
Reference Number:
SCA: 662350; 662310; PA: DEN-93:003633; SN: 93000970591
Resource Relation:
Other Information: PBD: Oct 1992
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRON-POSITRON INTERACTIONS; ANNIHILATION; ANTI-B NEUTRAL MESONS; SEMILEPTONIC DECAY; UPSILON-10575 MESONS; HADRONIC PARTICLE DECAY; ASYMMETRY; ANGULAR DISTRIBUTION; EXPERIMENTAL DATA; GEV RANGE 10-100; POLARIZATION-ASYMMETRY RATIO; POLARIZED PRODUCTS; EXCLUSIVE INTERACTIONS; PAIR PRODUCTION; D NEUTRAL MESONS; PIONS PLUS; D -2010 MESONS; ELECTRONS; MUONS MINUS; BRANCHING RATIO; MATRIX ELEMENTS; KOBAYASHI-MASKAWA MATRIX; WEAK HADRONIC DECAY; KAONS MINUS; PIONS MINUS; EFFECTIVE MASS; MASS SPECTRA; ANGULAR CORRELATION; 662350; 662310; DECAYS OF MESONS; WEAK AND ELECTROMAGNETIC INTERACTIONS OF LEPTONS
OSTI ID:
10141581
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE93780257; CNN: Contract BMFT 054DO51P; BMFT 055DD11P; BMFT 054ER12P; BMFT 055HD21P; BMFT 054KA17P; TRN: DE9303633
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
25 p.
Announcement Date:
Jul 05, 2005

Technical Report:

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Citation Formats

Albrecht, H, Ehrlichmann, H, Hamacher, T, Hofmann, R P, Kirchhoff, T, Nau, A, Nowak, S, Schroeder, H, Schulz, H D, Walter, M, Wurth, R, Appuhn, R D, Hast, C, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Bittner, M, Eckstein, P, Paulini, M, Reim, K, Wegener, H, Mundt, R, Oest, T, Reiner, R, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Huepper, A, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Hyatt, E R.F., Kapitza, H, Krieger, P, MacFarlane, D B, Patel, P M, Prentice, J D, Saull, P R.B., Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schmidtler, M, Schneider, M, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Balagura, V, Belyaev, I, Chechelnitsky, S, Danilov, M, Droutskoy, A, Gershtein, Yu, Golutvin, A, Gorelov, I, Kostina, G, Lubimov, V, Pakhlov, P, Ratnikov, F, Semenov, S, Shibaev, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, and ARGUS Collaboration. Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}. Germany: N. p., 1992. Web.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Hofmann, R P, Kirchhoff, T, Nau, A, Nowak, S, Schroeder, H, Schulz, H D, Walter, M, Wurth, R, Appuhn, R D, Hast, C, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Bittner, M, Eckstein, P, Paulini, M, Reim, K, Wegener, H, Mundt, R, Oest, T, Reiner, R, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Huepper, A, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Hyatt, E R.F., Kapitza, H, Krieger, P, MacFarlane, D B, Patel, P M, Prentice, J D, Saull, P R.B., Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schmidtler, M, Schneider, M, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Balagura, V, Belyaev, I, Chechelnitsky, S, Danilov, M, Droutskoy, A, Gershtein, Yu, Golutvin, A, Gorelov, I, Kostina, G, Lubimov, V, Pakhlov, P, Ratnikov, F, Semenov, S, Shibaev, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, & ARGUS Collaboration. Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}. Germany.
Albrecht, H, Ehrlichmann, H, Hamacher, T, Hofmann, R P, Kirchhoff, T, Nau, A, Nowak, S, Schroeder, H, Schulz, H D, Walter, M, Wurth, R, Appuhn, R D, Hast, C, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Bittner, M, Eckstein, P, Paulini, M, Reim, K, Wegener, H, Mundt, R, Oest, T, Reiner, R, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Huepper, A, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Hyatt, E R.F., Kapitza, H, Krieger, P, MacFarlane, D B, Patel, P M, Prentice, J D, Saull, P R.B., Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schmidtler, M, Schneider, M, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Balagura, V, Belyaev, I, Chechelnitsky, S, Danilov, M, Droutskoy, A, Gershtein, Yu, Golutvin, A, Gorelov, I, Kostina, G, Lubimov, V, Pakhlov, P, Ratnikov, F, Semenov, S, Shibaev, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, and ARGUS Collaboration. 1992. "Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}." Germany.
@misc{etde_10141581,
title = {Investigation of the decays anti B{sup 0}{yields}D{sup *+}l{sup -}anti {nu} and anti B{yields}D{sup **}l{sup -}anti {nu}}
 author = {Albrecht, H, Ehrlichmann, H, Hamacher, T, Hofmann, R P, Kirchhoff, T, Nau, A, Nowak, S, Schroeder, H, Schulz, H D, Walter, M, Wurth, R, Appuhn, R D, Hast, C, Kolanoski, H, Lange, A, Lindner, A, Mankel, R, Schieber, M, Siegmund, T, Spaan, B, Thurn, H, Toepfer, D, Walther, A, Wegener, D, Bittner, M, Eckstein, P, Paulini, M, Reim, K, Wegener, H, Mundt, R, Oest, T, Reiner, R, Schmidt-Parzefall, W, Funk, W, Stiewe, J, Werner, S, Ehret, K, Hofmann, W, Huepper, A, Khan, S, Knoepfle, K T, Spengler, J, Britton, D I, Charlesworth, C E.K., Edwards, K W, Hyatt, E R.F., Kapitza, H, Krieger, P, MacFarlane, D B, Patel, P M, Prentice, J D, Saull, P R.B., Tzamariudaki, K, Van de Water, R G, Yoon, T S, Ressing, D, Schmidtler, M, Schneider, M, Schubert, K R, Strahl, K, Waldi, R, Weseler, S, Kernel, G, Krizan, P, Kriznic, E, Podobnik, T, Zivko, T, Balagura, V, Belyaev, I, Chechelnitsky, S, Danilov, M, Droutskoy, A, Gershtein, Yu, Golutvin, A, Gorelov, I, Kostina, G, Lubimov, V, Pakhlov, P, Ratnikov, F, Semenov, S, Shibaev, V, Soloshenko, V, Tichomirov, I, Zaitsev, Yu, and ARGUS Collaboration}
 abstractNote = {Exclusive semileptonic B decays with a D{sup *+} meson in the final state have been studied using the ARGUS detector at the DORIS II storage ring. The branching ratio for the decay anti B{sup 0} {yields} D{sup *+} l{sup -}anti {nu}, where l{sup -} is either e{sup -} or {mu}{sup -}, has been measured to be (5.2 {+-} 0.5 {+-} 0.6)%. A significant rate for the decay anti B {+-} D{sup **} l{sup -}anti {nu} has been observed. From an angular analysis of the cascade anti B{sup 0} {+-} D{sup *+}({yields} D{sup 0} {pi}{sup +})l{sup -}anti {nu} the forward-backward asymmetry A{sub FB} and the D{sup *+} polarization parameter {alpha} have been determined to be A{sub FB} = 0.20 {+-} 0.08 {+-} 0.06 and {alpha} = 1.1 {+-} 0.4 {+-} 0.2. (orig.).}
 place = {Germany}
 year = {1992}
 month = {Oct}
 }