Anomalous enhancement observed in B → D(*)τ(ν)over-barτ decays

被引：123
作者：
Biancofiore, P. [1 ,2 ]
Colangelo, P. [2 ]
De Fazio, F. [2 ]
机构：
[1] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[2] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
来源：
PHYSICAL REVIEW D | 2013年 / 87卷 / 07期
关键词：
QUARK; UNITY;
D O I：
10.1103/PhysRevD.87.074010
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The BABAR measurements of the ratios R(D-(*)) = B(B -> D-(*)tau(nu) over bar (tau))/B(B -> D-(*)mu(nu) over bar (mu)) deviate from the standard model expectation, while new results on the purely leptonic B -> tau(nu) over bar (tau) mode show a better consistency with the standard model, within the uncertainties. In a new physics scenario, one possibility to accommodate these two experimental facts consists in considering an additional tensor operator in the effective weak Hamiltonian. We study the effects of such an operator in a set of observables, in semileptonic B -> D-(*) modes as well as in semileptonic B and B-s decays to excited positive-parity charmed mesons. DOI: 10.1103/PhysRevD.87.074010
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页数：15
相关论文
共 47 条
  • [1] [Anonymous], CMSPASEXO12002
  • [2] [Anonymous], ARXIV12012401
  • [3] [Anonymous], ARXIV12084678 BELL C
  • [4] Measurement of |Vcb| and the Form-Factor Slope in (B)over-bar → Dl- (ν)over-barl Decays in Events Tagged by a Fully Reconstructed B Meson
    Aubert, B.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Prencipe, E.
    Prudent, X.
    Tisserand, V.
    Garra Tico, J.
    Grauges, E.
    Martinelli, M.
    Palano, A.
    Pappagallo, M.
    Eigen, G.
    Stugu, B.
    Sun, L.
    Battaglia, M.
    Brown, D. N.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Lynch, G.
    Osipenkov, I. L.
    Tackmann, K.
    Tanabe, T.
    Hawkes, C. M.
    Soni, N.
    Watson, A. T.
    Koch, H.
    Schroeder, T.
    Asgeirsson, D. J.
    Fulsom, B. G.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    Barrett, M.
    Khan, A.
    Randle-Conde, A.
    Blinov, V. E.
    Bukin, A. D.
    Buzykaev, A. R.
    Druzhinin, V. P.
    Golubev, V. B.
    Onuchin, A. P.
    Serednyakov, S. I.
    Skovpen, Yu. I.
    Solodov, E. P.
    Todyshev, K. Yu.
    Bondioli, M.
    Curry, S.
    Eschrich, I.
    Kirkby, D.
    [J]. PHYSICAL REVIEW LETTERS, 2010, 104 (01)
  • [5] Search for B+ → l+νl recoiling against B- → D0l-(ν)over-barX
    Aubert, B.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Prencipe, E.
    Prudent, X.
    Tisserand, V.
    Garra Tico, J.
    Grauges, E.
    Martinelli, M.
    Palano, A.
    Pappagallo, M.
    Eigen, G.
    Stugu, B.
    Sun, L.
    Battaglia, M.
    Brown, D. N.
    Hooberman, B.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Lynch, G.
    Osipenkov, I. L.
    Tackmann, K.
    Tanabe, T.
    Hawkes, C. M.
    Soni, N.
    Watson, A. T.
    Koch, H.
    Schroeder, T.
    Asgeirsson, D. J.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    Barrett, M.
    Khan, A.
    Randle-Conde, A.
    Blinov, V. E.
    Bukin, A. D.
    Buzykaev, A. R.
    Druzhinin, V. P.
    Golubev, V. B.
    Onuchin, A. P.
    Serednyakov, S. I.
    Skovpen, Yu. I.
    Solodov, E. P.
    Todyshev, K. Yu.
    Bondioli, M.
    Curry, S.
    Eschrich, I.
    Kirkby, D.
    [J]. PHYSICAL REVIEW D, 2010, 81 (05)
  • [6] Observation of B+→ηρ+ and search for B0 decays to η′η, ηπ0, η′π0, and ωπ0
    Aubert, B.
    Bona, M.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Prencipe, E.
    Prudent, X.
    Tisserand, V.
    Tico, J. Garra
    Grauges, E.
    Lopez, L.
    Palano, A.
    Pappagallo, M.
    Eigen, G.
    Stugu, B.
    Sun, L.
    Abrams, G. S.
    Battaglia, M.
    Brown, D. N.
    Button-Shafer, J.
    Cahn, R. N.
    Jacobsen, R. G.
    Kadyk, J. A.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Kukartsev, G.
    Lynch, G.
    Osipenkov, I. L.
    Ronan, M. T.
    Tackmann, K.
    Tanabe, T.
    Wenzel, W. A.
    Hawkes, C. M.
    Soni, N.
    Watson, A. T.
    Koch, H.
    Schroeder, T.
    Walker, D.
    Asgeirsson, D. J.
    Cuhadar-Donszelmann, T.
    Fulsom, B. G.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    Barrett, M.
    Khan, A.
    Saleem, M.
    Teodorescu, L.
    Blinov, V. E.
    Bukin, A. D.
    [J]. PHYSICAL REVIEW D, 2008, 78 (01):
  • [7] Proposal to study Bs → (D)over-barsJ transitions
    Becirevic, D.
    Le Yaouanc, A.
    Oliver, L.
    Raynal, J. -C.
    Roudeau, P.
    Serrano, J.
    [J]. PHYSICAL REVIEW D, 2013, 87 (05):
  • [8] (B)over-bar → Dτ(ν)over-barτ vs. (B)over-bar → Dμ(ν)over-barμ
    Becirevic, Damir
    Kosnik, Nejc
    Tayduganov, Andrey
    [J]. PHYSICS LETTERS B, 2012, 716 (01) : 208 - 213
  • [9] REVIEW OF PARTICLE PHYSICS Particle Data Group
    Beringer, J.
    Arguin, J. -F.
    Barnett, R. M.
    Copic, K.
    Dahl, O.
    Groom, D. E.
    Lin, C. -J.
    Lys, J.
    Murayama, H.
    Wohl, C. G.
    Yao, W. -M.
    Zyla, P. A.
    Amsler, C.
    Antonelli, M.
    Asner, D. M.
    Baer, H.
    Band, H. R.
    Basaglia, T.
    Bauer, C. W.
    Beatty, J. J.
    Belousov, V. I.
    Bergren, E.
    Bernardi, G.
    Bertl, W.
    Bethke, S.
    Bichsel, H.
    Biebel, O.
    Blucher, E.
    Blusk, S.
    Brooijmans, G.
    Buchmueller, O.
    Cahn, R. N.
    Carena, M.
    Ceccucci, A.
    Chakraborty, D.
    Chen, M. -C.
    Chivukula, R. S.
    Cowan, G.
    D'Ambrosio, G.
    Damour, T.
    de Florian, D.
    de Gouvea, A.
    DeGrand, T.
    de Jong, P.
    Dissertori, G.
    Dobrescu, B.
    Doser, M.
    Drees, M.
    Edwards, D. A.
    Eidelman, S.
    [J]. PHYSICAL REVIEW D, 2012, 86 (01):
  • [10] Lattice calculation of the Isgur-Wise functions τ1/2 and τ3/2 with dynamical quarks
    Blossier, Benoit
    Wagner, Marc
    Pene, Olivier
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2009, (06):
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