Published March 9, 1989
| Version v1
Journal article
Measurement of D*+ polarization in the decay anti B0 → D*+l-anti ν
Creators
- Albrecht, H.1
- Boeckmann, P.1
- Glaeser, R.1
- Harder, G.1
- Krueger, A.1
- Nippe, A.1
- Reidenbach, M.1
- Schaefer, M.1
- Schmidt-Parzefall, W.1
- Schroeder, H.1
- Schulz, H.D.1
- Sefkow, F.1
- Spengler, J.1
- Wurth, R.1
- Appuhn, R.D.2
- Drescher, A.2
- Hast, C.2
- Herrera, G.2
- Kamp, D.2
- Kolanoski, H.2
- Lindner, A.2
- Mankel, R.2
- Scheck, H.2
- Schweda, G.2
- Spaan, B.2
- Walther, A.2
- Wegener, D.2
- Volland, U.3
- Wegener, H.3
- Funk, W.4
- Gabriel, J.C.4
- Stiewe, J.4
- Werner, S.4
- Charlesworth, C.E.K.5
- Kutschke, R.5
- Orr, R.S.5
- Parsons, J.A.5
- Prentice, J.D.5
- Seidel, S.C.5
- Swain, J.D.5
- Yoon, T.S.5
- Edwards, K.W.6
- Kapitza, H.6
- Frisken, W.R.7
- MacFarlane, D.B.8
- McLean, K.W.8
- Nilsson, A.W.8
- Patel, P.M.8
- Tsipolitis, G.8
- Ammar, R.9
- Ball, S.9
- Coppage, D.9
- Davis, R.9
- Kanekal, S.9
- Kwak, N.9
- Ruf, T.10
- Schael, S.10
- Schubert, K.R.10
- Strahl, K.10
- Waldi, R.10
- Bostjancic, B.11, 12
- Kernel, G.11, 12
- Krizan, P.11, 12
- Kriznic, E.11, 12
- Plesko, M.11, 12
- Cronstroem, H.I.13
- Joensson, L.13
- Babaev, A.14
- Danilov, M.14
- Fominykh, B.14
- Golutvin, A.14
- Gorelov, I.14
- Lubimov, V.14
- Rostovtsev, A.14
- Semenov, A.14
- Semenov, S.14
- Shevchenko, V.14
- Soloshenko, V.14
- Tchistilin, V.14
- Tichomirov, I.14
- Zaitsev, Yu.14
- Childers, R.15
- Darden, C.W.15
- Fernholz, R.C.15
- ARGUS Collaboration
- 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
- 2. Dortmund Univ. (Germany, F.R.). Inst. fuer Physik
- 3. Erlangen-Nuernberg Univ., Erlangen (Germany, F.R.). Physikalisches Inst.
- 4. Heidelberg Univ. (Germany, F.R.). Inst. fuer Hochenergiephysik
- 5. Toronto Univ., Ontario (Canada). Inst. of Particle Physics
- 6. Carleton Univ., Ottawa, Ontario (Canada). Inst. of Particle Physics
- 7. York Univ., Downsview, Ontario (Canada). Inst. of Particle Physics
- 8. McGill Univ., Montreal, Quebec (Canada). Inst. of Particle Physics
- 9. Kansas Univ., Lawrence (USA)
- 10. Karlsruhe Univ. (T.H.) (Germany, F.R.). Inst. fuer Experimentelle Kernphysik
- 11. Ljubljana Univ. (Yugoslavia). Dept. of Physics
- 12. Institut Jozef Stefan, Ljubljana (Yugoslavia)
- 13. Tekniska Hoegskolan, Lund (Sweden). Fysiska Institutionen
- 14. AN SSSR, Moscow. Inst. Teoreticheskoj i Ehksperimental'noj Fiziki
- 15. South Carolina Univ., Columbia (USA)
Description
Using the ARGUS detector at the e+e- storage ring DORIS II, we have measured the average polarization of D*+ mesons originating from exclusive decays anti B0 → D*+l-anti ν. By comparing the D*+ decay angular distribution to a functional form 1+αcos2θ, we determine α to be α = 0.7±0.9. This value of α leads to a ratio of longitudinal to transverse decay width ΓL/ΓT = 0.85±0.45, which allows the determination, vertical strokeVcbvertical stroke=0.052±0.011. The importance of the transverse helicity component is manifested in the q2 and lepton spectra, which are also presented. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 219
- Journal Issue
- 1
- Series
- Phys. Lett., B.
- Journal Page Range
- 121-126
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20039749
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR CORRELATION; ANGULAR DISTRIBUTION; ANNIHILATION; ANTI-B NEUTRAL MESONS; ANTINEUTRINOS; BRANCHING RATIO; D*-2010 MESONS; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; EXCLUSIVE INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 10-100; HELICITY; KOBAYASHI-MASKAWA MATRIX; MASS SPECTRA; MATRIX ELEMENTS; PAIR PRODUCTION; POLARIZATION-ASYMMETRY RATIO; POLARIZED PRODUCTS; SEMILEPTONIC DECAY; SPECTRA
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; B MESONS; B NEUTRAL MESONS; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; CORRELATIONS; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MASS; MASSLESS PARTICLES; MATRICES; MATTER; MESONS; NEUTRINOS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; VECTOR MESONS; WEAK PARTICLE DECAY
Optional Information
- Contract/Grant/Project number
- Contract BMFT 054DO51P; BMFT 054ER11P(5); BMFT 054HD24P; BMFT 054KA17P; DE-AS09-80ER10690
- Collaborations
- ARGUS Collaboration.