(B)over-bar → D(*)τ(ν)over-bar excesses in ALRSM constrained form B, D decays and D0 - (D)over-bar0 mixing

被引：0
|
作者：
Hati, Chandan [1 ,2 ]
Kumar, Girish [1 ,2 ]
Mahajan, Namit [1 ]
机构：
[1] Phys Res Lab, Ahmadabad 380009, Gujarat, India
[2] Indian Inst Technol Gandhinagar, Ahmadabad 382424, Gujarat, India
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 01期
关键词：
Rare Decays; Beyond Standard Model; B-Physics; SEMILEPTONIC DECAYS; HEAVY; MESONS; SCALAR; MODEL;
D O I：
10.1007/JHEP01(2016)117
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Recent experimental results from the LHCb, BaBar and Belle collaborations on the semitauonic decays of B meson, (B) over bar -> D-(*) tau(nu) over bar, showing a significant deviation from the Standard Model (SM), hint towards a new physics scenario beyond the SM. In this work, we show that these enhanced decay rates can be explained within the framework of E-6 motivated Alternative Left-Right Symmetric Model (ALRSM), which has been successful in explaining the recent CMS excesses and has the feature of accommodating high scale leptogenesis. The R-parity conserving couplings in ALRSM can contribute universally to both (B) over bar -> D tau(nu) over bar and (B) over bar -> D-(*) tau(nu) over bar via the exchange of scalar leptoquarks. We study the leptonic decays D-s(+) -> tau(+) (nu) over barB(+) -> tau(+)(nu) over bar, D+ -> tau(+) (nu) over bar and D-0 - (D) over bar (0) mixing to constrain the couplings involved in explaining the enhanced B decay rates and we find that ALRSM can explain the current experimental data on R (D-(*)) quite well while satisfying these constraints.
引用
收藏
页码：1 / 20
页数：20
相关论文
共 50 条
  • [21] Observation of the semileptonic decays B→D*τ-(ν)over-barτ and evidence for B→Dτ-(ν)over-barτ
    Aubert, B.
    Bona, M.
    Boutigny, D.
    Karyotakis, Y.
    Lees, J. P.
    Poireau, V.
    Prudent, X.
    Tisserand, V.
    Zghiche, A.
    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.
    Groysman, Y.
    Jacobsen, R. G.
    Kadyk, J. A.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Kukartsev, G.
    Pegna, D. Lopes
    Lynch, G.
    Mir, L. M.
    Orimoto, T. J.
    Osipenkov, I. L.
    Ronan, M. T.
    Tackmann, K.
    Tanabe, T.
    Wenzel, W. A.
    Sanchez, P. del Amo
    Hawkes, C. M.
    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.
    PHYSICAL REVIEW LETTERS, 2008, 100 (02)
  • [22] Measurement of B(B-→D0π-) and B((B)over-bar0→ D+π-) and isospin analysis of (B)over-bar→Dπ decays -: art. no. 031101
    Ahmed, S
    Alam, MS
    Jian, L
    Saleem, M
    Wappler, F
    Eckhart, E
    Gan, KK
    Gwon, C
    Hart, T
    Honscheid, K
    Hufnagel, D
    Kagan, H
    Kass, R
    Pedlar, TK
    Thayer, JB
    von Toerne, E
    Wilksen, T
    Zoeller, MM
    Muramatsu, H
    Richichi, SJ
    Severini, H
    Skubic, P
    Dytman, SA
    Mueller, JA
    Nam, S
    Savinov, V
    Chen, S
    Hinson, JW
    Lee, J
    Miller, DH
    Pavlunin, V
    Shibata, EI
    Shipsey, IPJ
    Cronin-Hennessy, D
    Lyon, AL
    Park, CS
    Park, W
    Thorndike, EH
    Coan, TE
    Gao, YS
    Liu, F
    Maravin, Y
    Stroynowski, R
    Artuso, M
    Boulahouache, C
    Bukin, K
    Dambasuren, E
    Khroustalev, K
    Mountain, R
    Nandakumar, R
    PHYSICAL REVIEW D, 2002, 66 (03)
  • [23] Measurement of the form factors for (B)over-bar(0)->D*(+)l(-)(nu)over-bar
    Duboscq, JE
    Fulton, R
    Fujino, D
    Gan, KK
    Honscheid, K
    Kagan, H
    Kass, R
    Lee, J
    Sung, M
    White, C
    Wanke, R
    Wolf, A
    Zoeller, MM
    Fu, X
    Nemati, B
    Richichi, SJ
    Ross, WR
    Skubic, P
    Wood, M
    Bishai, M
    Fast, J
    Gerndt, E
    Hinson, JW
    Miao, T
    Miller, DH
    Modesitt, M
    Shibata, EI
    Shipsey, IPJ
    Wang, PN
    Gibbons, L
    Johnson, SD
    Kwon, Y
    Roberts, S
    Thorndike, EH
    Jessop, CP
    Lingel, K
    Marsiske, H
    Perl, ML
    Schaffner, SF
    Wang, R
    Coan, TE
    Dominick, J
    Fadeyev, V
    Korolkov, I
    Lambrecht, M
    Sanghera, S
    Shelkov, V
    Stroynowski, R
    Volobouev, I
    Wei, G
    PHYSICAL REVIEW LETTERS, 1996, 76 (21) : 3898 - 3902
  • [24] Large off-shell effects in the (D)over-bar* contribution to B → (D)over-barππ and B → (D)over-barπ(l)over-barνl decays
    Le Yaouanc, Alain
    Leroy, Jean-Pierre
    Roudeau, Patrick
    PHYSICAL REVIEW D, 2019, 99 (07)
  • [25] Evidence for an Excess of (B)over-bar → D(*) τ-(ν)over-barτ Decays
    Lees, J. P.
    Poireau, V.
    Tisserand, V.
    Garra Tico, J.
    Grauges, E.
    Palano, A.
    Eigen, G.
    Stugu, B.
    Brown, D. N.
    Kerth, L. T.
    Kolomensky, Yu. G.
    Lynch, G.
    Koch, H.
    Schroeder, T.
    Asgeirsson, D. J.
    Hearty, C.
    Mattison, T. S.
    McKenna, J. A.
    So, R. Y.
    Khan, A.
    Blinov, V. E.
    Buzykaev, A. R.
    Druzhinin, V. P.
    Golubev, V. B.
    Kravchenko, E. A.
    Onuchin, A. P.
    Serednyakov, S. I.
    Skovpen, Yu. I.
    Solodov, E. P.
    Todyshev, K. Yu.
    Yushkov, A. N.
    Bondioli, M.
    Kirkby, D.
    Lankford, A. J.
    Mandelkern, M.
    Atmacan, H.
    Gary, J. W.
    Liu, F.
    Long, O.
    Vitug, G. M.
    Campagnari, C.
    Hong, T. M.
    Kovalskyi, D.
    Richman, J. D.
    West, C. A.
    Eisner, A. M.
    Kroseberg, J.
    Lockman, W. S.
    Martinez, A. J.
    Schumm, B. A.
    PHYSICAL REVIEW LETTERS, 2012, 109 (10)
  • [26] Measurements of vertical bar V-cb vertical bar form factors and branching fractions in the decays (B)over-bar(0)->D(*+)l(-)(nu)over-bar(l) and (B)over-bar(0)->D(+)l(-)(nu)over-bar(l)
    Buskulic, D
    DeBonis, I
    Decamp, D
    Ghez, P
    Goy, C
    Lees, JP
    Lucotte, A
    Minard, MN
    Nief, JY
    Odier, P
    Pietrzyk, B
    Casado, MP
    Chmeissani, M
    Comas, P
    Crespo, JM
    Delfino, M
    Efthymiopoulos, I
    Fernandez, E
    FernandezBosman, M
    Garrido, L
    Juste, A
    Martinez, M
    Orteu, S
    Padilla, C
    Park, IC
    Pascual, A
    Perlas, JA
    Riu, I
    Sanchez, F
    Teubert, F
    Colaleo, A
    Creanza, D
    dePalma, M
    Gelao, G
    Girone, M
    Iaselli, G
    Maggi, G
    Maggi, M
    Marinelli, N
    Nuzzo, S
    Ranieri, A
    Raso, G
    Ruggieri, F
    Selvaggi, G
    Silvestris, L
    Tempesta, P
    Tricomi, A
    Zito, G
    Huang, X
    Lin, J
    PHYSICS LETTERS B, 1997, 395 (3-4) : 373 - 387
  • [27] Effect of D - (D)over-bar mixing in the extraction of γ with B- → D0K- and B- → D0 π- decays
    Rama, Matteo
    PHYSICAL REVIEW D, 2014, 89 (01):
  • [28] Measurement of the branching ratio of (B)over-bar0 → D*+τ-(ν)over-barτ relative to (B)over-bar0 → D*+l-(ν)over-barl decays with a semileptonic tagging method
    Sato, Y.
    Iijima, T.
    Adamczyk, K.
    Aihara, H.
    Asner, D. M.
    Atmacan, H.
    Aushev, T.
    Ayad, R.
    Aziz, T.
    Babu, V.
    Badhrees, I.
    Bakich, A. M.
    Bansal, V.
    Behera, P.
    Bhardwaj, V.
    Bhuyan, B.
    Biswal, J.
    Bonvicini, G.
    Bozek, A.
    Bracko, M.
    Cervenkov, D.
    Chang, P.
    Chekelian, V.
    Chen, A.
    Cheon, B. G.
    Chilikin, K.
    Chistov, R.
    Cho, K.
    Chobanova, V.
    Choi, Y.
    Cinabro, D.
    Danilov, M.
    Dash, N.
    Di Carlo, S.
    Dolezal, Z.
    Dutta, D.
    Eidelman, S.
    Epifanov, D.
    Farhat, H.
    Fast, J. E.
    Ferber, T.
    Fulsom, B. G.
    Gaur, V.
    Gabyshev, N.
    Garmash, A.
    Goldenzweig, P.
    Golob, B.
    Greenwald, D.
    Hara, K.
    Hara, T.
    PHYSICAL REVIEW D, 2016, 94 (07)
  • [29] π±, K±, p and (p)over-bar production in Z0→q(q)over-bar, Z0→b(b)over-bar, Z0→u(u)over-bar,d(d)over-bar,s(s)over-bar
    Abreu, P
    Adam, W
    Adye, T
    Adzic, P
    Ajinenko, I
    Alekseev, GD
    Alemany, R
    Allport, PP
    Almehed, S
    Amaldi, U
    Amato, S
    Anassontzis, EG
    Andersson, P
    Andreazza, A
    Antilogus, P
    Apel, WD
    Arnoud, Y
    Asman, B
    Augustin, JE
    Augustinus, A
    Baillon, P
    Bambade, P
    Barao, F
    Barbiellini, G
    Barbier, R
    Bardin, DY
    Barker, G
    Baroncelli, A
    Battaglia, M
    Baubillier, M
    Becks, KH
    Begalli, M
    Beilliere, P
    Belokopytov, Y
    Belous, K
    Benvenuti, AC
    Berat, C
    Berggren, M
    Bertini, D
    Bertrand, D
    Besancon, M
    Bianchi, F
    Bigi, M
    Bilenky, MS
    Bizouard, MA
    Bloch, D
    Bonesini, M
    Bonivento, W
    Boonekamp, M
    Booth, PSL
    EUROPEAN PHYSICAL JOURNAL C, 1998, 5 (04): : 585 - 620
  • [30] CP violation in the decays B→K(K)over-bar in the presence of D(D)over-bar⇆K(K)over-bar mixing
    Barshay, S
    Sehgal, LM
    van Leusen, J
    PHYSICS LETTERS B, 2004, 596 (3-4) : 240 - 246
12345