Abstract
We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 791-798 |
| Number of pages | 8 |
| Journal | Physical Review D |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1993 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors. / Sanghera, S.; Skwarnicki, T.; Stroynowski, R.; Artuso, M.; Goldberg, M.; Horwitz, N.; Kennett, R.; Moneti, G. C.; Muheim, F.; Playfer, S.; Rozen, Y.; Rubin, P.; Stone, S.; Thulasidas, M.; Yao, W. M.; Zhu, G.; Barnes, A. V.; Bartelt, J.; Csorna, S. E.; Egyed, Z.; Jain, V.; Sheldon, P.; Akerib, D. S.; Barish, B.; Chadha, M.; Cowen, D. F.; Eigen, G.; Miller, J. S.; Urheim, J.; Weinstein, A. J.; Acosta, D.; Masek, G.; Ong, B.; Paar, H.; Sivertz, M.; Bean, A.; Gronberg, J.; Kutschke, R.; Menary, S.; Morrison, R. J.; Nelson, H.; Richman, J.; Tajima, H.; Schmidt, D.; Sperka, D.; Witherell, M.; Procario, M.; Daoudi, M.; Ford, W. T.; Johnson, D. R.; Lingel, K.; Lohner, M.; Rankin, P.; Smith, J. G.; Alexander, J. P.; Bebek, C.; Berkelman, K.; Besson, D.; Browder, T. E.; Cassel, D. G.; Coffman, D. M.; Drell, P. S.; Ehrlich, R.; Galik, R. S.; Garcia-Sciveres, M.; Geiser, B.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Honscheid, K.; Jones, C.; Kandaswamy, J.; Katayama, N.; Kim, P. C.; Kreinick, D. L.; Ludwig, G. S.; Masui, J.; Mevissen, J.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; O'Grady, C.; Patterson, J. R.; Peterson, D.; Riley, D.; Sapper, M.; Selen, M.; Worden, H.; Worris, M.; Würthwein, F.; Avery, P.; Freyberger, A.; Rodriguez, J.; Stephens, R.; Yelton, J.; Cinabro, D.; Henderson, S.; Kinoshita, K.; Liu, T.; Saulnier, M.; Wilson, R.; Yamamoto, H.; Sadoff, A. J.; Ammar, R.; Ball, S.; Baringer, P.; Coppage, D.; Copty, N.; Davis, R.; Hancock, N.; Kelly, M.; Kwak, N.; Lam, H.; Kubota, Y.; Lattery, M.; Nelson, J. K.; Patton, S.; Perticone, D.; Poling, R.; Savinov, V.; Schrenk, S.; Wang, R.; Alam, M. S.; Kim, I. J.; Nemati, B.; O'Neill, J. J.; Romero, V.; Severini, H.; Sun, C. R.; Wang, P. N.; Zoeller, M. M.; Crawford, G.; Fulton, R.; Gan, K. K.; Kagan, H.; Kass, R.; Lee, J.; Malchow, R.; Morrow, F.; Sung, M.; White, C.; Whitmore, J.; Wilson, P.; Butler, F.; Fu, X.; Kalbfleisch, G.; Lambrecht, M.; Skubic, P.; Snow, J.; Wang, P. L.; Bortoletto, D.; Brown, D. N.; Dominick, J.; McIlwain, R. L.; Miao, T.; Miller, D. H.; Modesitt, M.; Schaffner, S. F.; Shibata, E. I.; Shipsey, I. P.J.; Battle, M.; Ernst, J.; Kroha, H.; Roberts, S.; Sparks, K.; Thorndike, E. H.; Wang, C. H.
In: Physical Review D, Vol. 47, No. 3, 1993, p. 791-798.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors
AU - Sanghera, S.
AU - Skwarnicki, T.
AU - Stroynowski, R.
AU - Artuso, M.
AU - Goldberg, M.
AU - Horwitz, N.
AU - Kennett, R.
AU - Moneti, G. C.
AU - Muheim, F.
AU - Playfer, S.
AU - Rozen, Y.
AU - Rubin, P.
AU - Stone, S.
AU - Thulasidas, M.
AU - Yao, W. M.
AU - Zhu, G.
AU - Barnes, A. V.
AU - Bartelt, J.
AU - Csorna, S. E.
AU - Egyed, Z.
AU - Jain, V.
AU - Sheldon, P.
AU - Akerib, D. S.
AU - Barish, B.
AU - Chadha, M.
AU - Cowen, D. F.
AU - Eigen, G.
AU - Miller, J. S.
AU - Urheim, J.
AU - Weinstein, A. J.
AU - Acosta, D.
AU - Masek, G.
AU - Ong, B.
AU - Paar, H.
AU - Sivertz, M.
AU - Bean, A.
AU - Gronberg, J.
AU - Kutschke, R.
AU - Menary, S.
AU - Morrison, R. J.
AU - Nelson, H.
AU - Richman, J.
AU - Tajima, H.
AU - Schmidt, D.
AU - Sperka, D.
AU - Witherell, M.
AU - Procario, M.
AU - Daoudi, M.
AU - Ford, W. T.
AU - Johnson, D. R.
AU - Lingel, K.
AU - Lohner, M.
AU - Rankin, P.
AU - Smith, J. G.
AU - Alexander, J. P.
AU - Bebek, C.
AU - Berkelman, K.
AU - Besson, D.
AU - Browder, T. E.
AU - Cassel, D. G.
AU - Coffman, D. M.
AU - Drell, P. S.
AU - Ehrlich, R.
AU - Galik, R. S.
AU - Garcia-Sciveres, M.
AU - Geiser, B.
AU - Gittelman, B.
AU - Gray, S. W.
AU - Hartill, D. L.
AU - Heltsley, B. K.
AU - Honscheid, K.
AU - Jones, C.
AU - Kandaswamy, J.
AU - Katayama, N.
AU - Kim, P. C.
AU - Kreinick, D. L.
AU - Ludwig, G. S.
AU - Masui, J.
AU - Mevissen, J.
AU - Mistry, N. B.
AU - Ng, C. R.
AU - Nordberg, E.
AU - O'Grady, C.
AU - Patterson, J. R.
AU - Peterson, D.
AU - Riley, D.
AU - Sapper, M.
AU - Selen, M.
AU - Worden, H.
AU - Worris, M.
AU - Würthwein, F.
AU - Avery, P.
AU - Freyberger, A.
AU - Rodriguez, J.
AU - Stephens, R.
AU - Yelton, J.
AU - Cinabro, D.
AU - Henderson, S.
AU - Kinoshita, K.
AU - Liu, T.
AU - Saulnier, M.
AU - Wilson, R.
AU - Yamamoto, H.
AU - Sadoff, A. J.
AU - Ammar, R.
AU - Ball, S.
AU - Baringer, P.
AU - Coppage, D.
AU - Copty, N.
AU - Davis, R.
AU - Hancock, N.
AU - Kelly, M.
AU - Kwak, N.
AU - Lam, H.
AU - Kubota, Y.
AU - Lattery, M.
AU - Nelson, J. K.
AU - Patton, S.
AU - Perticone, D.
AU - Poling, R.
AU - Savinov, V.
AU - Schrenk, S.
AU - Wang, R.
AU - Alam, M. S.
AU - Kim, I. J.
AU - Nemati, B.
AU - O'Neill, J. J.
AU - Romero, V.
AU - Severini, H.
AU - Sun, C. R.
AU - Wang, P. N.
AU - Zoeller, M. M.
AU - Crawford, G.
AU - Fulton, R.
AU - Gan, K. K.
AU - Kagan, H.
AU - Kass, R.
AU - Lee, J.
AU - Malchow, R.
AU - Morrow, F.
AU - Sung, M.
AU - White, C.
AU - Whitmore, J.
AU - Wilson, P.
AU - Butler, F.
AU - Fu, X.
AU - Kalbfleisch, G.
AU - Lambrecht, M.
AU - Skubic, P.
AU - Snow, J.
AU - Wang, P. L.
AU - Bortoletto, D.
AU - Brown, D. N.
AU - Dominick, J.
AU - McIlwain, R. L.
AU - Miao, T.
AU - Miller, D. H.
AU - Modesitt, M.
AU - Schaffner, S. F.
AU - Shibata, E. I.
AU - Shipsey, I. P.J.
AU - Battle, M.
AU - Ernst, J.
AU - Kroha, H.
AU - Roberts, S.
AU - Sparks, K.
AU - Thorndike, E. H.
AU - Wang, C. H.
PY - 1993
Y1 - 1993
N2 - We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.
AB - We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.
UR - http://www.scopus.com/inward/record.url?scp=4243474388&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243474388&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.47.791
DO - 10.1103/PhysRevD.47.791
M3 - Article
AN - SCOPUS:4243474388
VL - 47
SP - 791
EP - 798
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 3
ER -