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doi:10.1103/physrevd.79.051101

Cited by 26 publications

(22 citation statements)

References 28 publications

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“…At present, this process has not yet been observed and the current upper limit on the branching ratio is reported as B(B → µν µ ) exp. < 1 × 10 −6 at 90% CL [32][33][34]. This result may be compared with the SM prediction B(B → µν µ ) SM = (0.41 ± 0.05) × 10 −6 and thus, we expect that B → µν µ will be observed with a meaningful statistical significance at SuperKEKB/Belle II.…”

Section: Future Prospectsupporting

confidence: 54%

“…As for the V 2 scenario, R π and R ps are complementary because the signs of the new physics contributions relative to the SM ones are opposite in these observables as seen in Eqs. (12), (13) and (34). The S 1 and S 2 scenarios are constrained more tightly by R ps because of the chiral enhancement of the pseudoscalar contribution in the purely leptonic decay.…”

Section: Present Constraintsmentioning

confidence: 99%

See 1 more Smart Citation

New physics contributions in B→πτν¯ and B→τν¯

Tanaka

Watanabe

2017

Progress of Theoretical and Experimental Physics

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We study possible new physics contributions in B → πτν and B → τν employing the modelindependent effective Lagrangian that describes the quark-level transition b → uτν at low energies. The decay rate of B → πτν and its theoretical uncertainty are evaluated using the B → π form factors given by recent lattice QCD studies. Comparing theoretical results with the current experimental data, B(B → πτν) < 2.5 × 10 −4 and B(B → τν τ ) = (1.14 ± 0.22) × 10 −4 , we obtain constraints on the Wilson coefficients that quantify potential new physics. We also present the expected sensitivity of the SuperKEKB/Belle II experiment. † These authors contributed equally to this work 1 typeset using P T P T E X.cls arXiv:1608.05207v2 [hep-ph]

show abstract

Section: Future Prospectsupporting

confidence: 54%

Section: Present Constraintsmentioning

confidence: 99%

New physics contributions in B→πτν¯ and B→τν¯

Tanaka

Watanabe

2017

Progress of Theoretical and Experimental Physics

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show abstract

“…The mixing angle is obtained as ω = −0.10 ± 0.03 ± 0.02 ± 0.02 rad, which means the S and D waves are dominant for D 1 (2420) and D 1 (2430), respectively. BaBar also did the Dalitz analysis for B − → D ( * )0 [22] with a data sample around six times higher than Belle's analysis [21], confirming the existence of D * 0 (2400) 0 with a mass and width of 2297 ± 8 ± 20 MeV/c 2 and 273 ± 12 ± 48 MeV, respectively. These values are consistent with Belle's result with better precision.…”

Section: Studies From B Decaysmentioning

confidence: 88%

Open charm hadron spectroscopy at B-factories

Kato

Iijima

2019

Progress in Particle and Nuclear Physics

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Open charm hadrons are excellent probes to study the dynamics of quarks and gluons inside hadrons. Because the mass of a charm quark is heavier than Λ QCD , so called heavy quark symmetry emerges in the hadron containing a charm quark and plays a central role in the classification and constraining the interactions. Belle and BaBar, which are B-factory experiments, have made significant advances in the field of open charm hadron spectroscopy in these 15 years. In this article, experimental advances on both open charm mesons and baryons by B-factory experiments are reviewed. Finally, the prospect of the open charm hadrons with the next generation B-factory experiment, Belle II is described.

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“…The observation of the decay mode J/ψπ 0 π 0 [22] established that it has zero isospin. However it is not observed to decay to D * D * [23], nor to D * sD * s [24], so that its properties do not lend themselves to a simple charmonium interpretation, and its nature is still unclear. A subsequent Belle analysis [25] of the same final state suggested also the existence of an additional resonance around 4.1 GeV/c 2 that they dubbed the Y(4008).…”

Section: Study Of the J/ψω In Two-photon Interactionsmentioning

confidence: 99%

“…This claim generated a great deal of interest [15], [16] since such states must have a minimum quark content ccdu, and thus would represent an unequivocal manifestation of four-quark meson state. The BABAR collaboration searched the Z(4430) + in a similar analysis of the Belle collaboration in the process B → ψ(2S)Kπ and also in B → J/ψKπ[17] but they did not find any structure neither in the J/ψπ nor in the ψ(2S)π. Recently Belle performed an amplitude analysis of the J/ψKπ[18] system finding no significant evidence of the Z(4430) + in agreement with BABAR .…”

mentioning

confidence: 99%