Measurement of the branching ratio of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mo>*</mml:mo><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>τ</mml:mi></mml:mrow><mml:

Huschle, M.; Kuhr, T.; Heck, M.; Goldenzweig, P.; Abdesselam, A.; Adachi, I.; Adamczyk, K.; Aihara, H.; Said, S. Al; Arinstein, K.; Asner, D. M.; Aushev, T.; Ayad, R.; Aziz, T.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Barberio, E.; Bhardwaj, V.; Bhuyan, B.; Biswal, Jyoti Prakash; Bobrov, A.; Bożek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Ferber, T.; Frey, A.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gillard, R.; Glattauer, R.; Goh, Y. M.; Golob, B.; Grygier, J.; Hamer, P.; Hara, K.; Hara, T.; Hasenbusch, J.; Hayasaka, K.; Hayashii, H.; He, X.; Heider, M.; Heller, Andreas; Horiguchi, T.; Hou, W.-S.; Hsu, C.-L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaeglé, I.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Kato, E.; Katrenko, P.; Kawasaki, T.; Keck, Thomas M.; Kiesling, C.; Kim, D. Y.; Kim, H. J.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kobayashi, N.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kumita, T.; Kuzmin, A.; Kwon, Y.; Lee, I. S.; Li, C.; Li, Y.; Gioi, L. Li; Libby, J.; Liventsev, D.; Lukin, P.; Masuda, M.; Matvienko, D.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Mohanty, S.; Moll, A.; Moon, H. K.; Mussa, R.; Nakamura, K. R.; Nakano, E.; Nakao, M.; Nanut, T.; Nayak, M.; Nisar, N. K.; Nishida, S.; Ogawa, S.; Okuno, S.; Oswald, C.; Pakhlova, G.; Pal, B.; Park, C. W.; Park, H.; Pedlar, T. K.; Pesántez, L.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Pulvermacher, C.; Ribežl, E.; Ritter, M.; Rostomyan, A.; Sakai, Y.; Sandilya, S.; Šantelj, L.; Sanuki, T.; Sato, Y.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Schwartz, A. J.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T. A.; Shiu, J. G.; Simon, F.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Steder, M.; Stypula, J.; Sumihama, M.; Sumiyoshi, T.; Tamponi, U.; Teramoto, Y.; Trabelsi, K.; Trusov, V.; Uchida, M.; Uglov, T.; Uno, S.; Usov, Y.; Hulse, C. Van; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Wagner, M. N.; Wang, C. H.; Wang, M. Z.; Wang, P.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Won, E.; Yamamoto, H.; Yamaoka, J.; Yashchenko, S.; Ye, H.; Yook, Y.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/physrevd.92.072014

Cited by 703 publications

(725 citation statements)

References 34 publications

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“…For the light Higgs signal strengths and heavy Higgs searches we use the most up-to-date ATLAS and CMS publications and pre-prints [64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81], applying the narrow width approximation. We do not make use of (semi-)tauonic B decay observables (that is Br(B → τ ν) and Br(B → D ( * ) τ ν)), which would only be relevant in type II [82], because the existing tension between the measurements [83][84][85] and the corresponding SM predictions cannot be accommodated in the 2HDM with a softly broken Z 2 symmetry [86].…”

Section: Jhep11(2015)052mentioning

confidence: 99%

Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking

Chowdhury

Eberhardt

2015

J. High Energ. Phys.

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Abstract:We determine the next-to-leading order renormalization group equations for the Two-Higgs-Doublet model with a softly broken Z 2 symmetry and CP conservation in the scalar potential. We use them to identify the parameter regions which are stable up to the Planck scale and find that in this case the quartic couplings of the Higgs potential cannot be larger than 1 in magnitude and that the absolute values of the S-matrix eigenvalues cannot exceed 2.5 at the electroweak symmetry breaking scale. Interpreting the 125 GeV resonance as the light CP -even Higgs eigenstate, we combine stability constraints, electroweak precision and flavour observables with the latest ATLAS and CMS data on Higgs signal strengths and heavy Higgs searches in global parameter fits to all four types of Z 2 symmetry. We quantify the maximal deviations from the alignment limit and find that in type II and Y the mass of the heavy CP -even (CP -odd) scalar cannot be smaller than 340 GeV (360 GeV). Also, we pinpoint the physical parameter regions compatible with a stable scalar potential up to the Planck scale. Motivated by the question how natural a Higgs mass of 125 GeV can be in the context of a Two-Higgs-Doublet model, we also address the hierarchy problem and find that the Two-Higgs-Doublet model does not offer a perturbative solution to it beyond 5 TeV.

show abstract

Section: Jhep11(2015)052mentioning

confidence: 99%

Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking

Chowdhury

Eberhardt

2015

J. High Energ. Phys.

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“…Very recently, in Ref [7], the authors predicted the value of R D Ã to be 0.260 AE 0.008. Comparing with the current world averages of R D ¼ 0.407 AE 0.039 AE 0.024 and R D Ã ¼ 0.304 AE 0.013 AE 0.007 from BABAR [8], Belle [9][10][11], and LHCb [12], the combined deviation currently stands at about 4.1σ. For definiteness, we report in Table I the current status of the experimentally measured ratio of branching ratios R D and R D Ã [13].…”

Section: Introductionmentioning

confidence: 99%

Signature of lepton flavor universality violation in Bs→Dsτν semileptonic decays

Dutta

Rajeev

2018

Phys. Rev. D

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Deviation from the standard model prediction is observed in many semileptonic B decays mediated via b → c charged current interactions. In particular, current experimental measurements of the ratio of branching ratio R D and R D Ã in B → D ðÃÞ lν decays disagree with standard model expectations at the level of about 4.1σ. Moreover, the recent measurement of the ratio of branching ratio R J=Ψ by LHCb, where R J=Ψ ¼ BðB c → J=ΨτνÞ=BðB c → J=ΨμνÞ, is more than 2σ away from the standard model prediction. In this context, we consider an effective Lagrangian in the presence of vector and scalar new physics couplings to study the implications of R D and R D Ã anomalies in B s → D s τν decays. We give a prediction of several observables such as the branching ratio, ratio of branching ratio, forward backward asymmetry parameter, τ polarization fraction, and convexity parameter for the B s → D s τν decays within the standard model and within various new physics scenarios.

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“…The combined results of BaBar [1,2], Belle [3][4][5][6] and LHCb [7] read [8] R(D) = 0.403 ± 0.047, R(D * ) = 0.310 ± 0.017, ρ = −0.23,…”

Section: Introductionmentioning

confidence: 99%

Y and ψ leptonic decays as probes of solutions to the R(D (*)) puzzle

Aloni

Efrati

Grossman

et al. 2017

J. High Energ. Phys.

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Experimental measurements of the ratios R(D ( * ) ) ≡ Γ(B→D ( * ) τ ν) Γ(B→D ( * ) ν) ( = e, µ) show a 3.9σ deviation from the Standard Model prediction. In the absence of light righthanded neutrinos, a new physics contribution to b → cτ ν decays necessarily modifies also bb → τ + τ − and/or cc → τ + τ − transitions. These contributions lead to violation of lepton flavor universality in, respectively, Υ and ψ leptonic decays. We analyze the constraints resulting from measurements of the leptonic vector-meson decays on solutions to the R(D ( * ) ) puzzle. Available data from BaBar and Belle can already disfavor some of the new physics explanations of this anomaly. Further discrimination can be made by measuring Υ(1S, 2S, 3S) → τ τ in the upcoming Belle II experiment.

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Measurement of the branching ratio ofB¯→D(*)τ

Cited by 703 publications

References 34 publications

Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking

Global fits of the two-loop renormalized Two-Higgs-Doublet model with soft Z 2 breaking

Signature of lepton flavor universality violation in Bs→Dsτν semileptonic decays

Y and ψ leptonic decays as probes of solutions to the R(D (*)) puzzle

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