M. Z. Wang scite author profile

M. Z. Wang

5Publications

2,282Citation Statements Received

101Citation Statements Given

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Affiliations

National Taiwan University

Publications

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Measurement of the branching ratio ofB¯→D()τ
Huschle¹,
Kuhr²,
Heck³
et al. 2015
Phys. Rev. D*
703
27
695
2
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We report a measurement of the branching fraction ratios R(D ( * ) ) ofB → D ( * ) τ −ν τ relative tō B → D ( * ) −ν (where = e or µ) using the full Belle data sample of 772 × 10 6 BB pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider. The measured values are R(D) = 0.375 ± 0.064(stat.) ± 0.026(syst.) and R(D * ) = 0.293 ± 0.038(stat.) ± 0.015(syst.). The analysis uses hadronic reconstruction of the tag-side B meson and purely leptonic τ decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.

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Measurement of the τ Lepton Polarization and R(D) in the Decay
Hirose¹,
Iijima²,
Adachi³
et al. 2017
Phys. Rev. Lett.*

545

514

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We report the first measurement of the τ lepton polarization P_{τ}(D^{*}) in the decay B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ} as well as a new measurement of the ratio of the branching fractions R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ^{-} denotes an electron or a muon, and the τ is reconstructed in the modes τ^{-}→π^{-}ν_{τ} and τ^{-}→ρ^{-}ν_{τ}. We use the full data sample of 772×10^{6} BB[over ¯] pairs recorded with the Belle detector at the KEKB electron-positron collider. Our results, P_{τ}(D^{*})=-0.38±0.51(stat)_{-0.16}^{+0.21}(syst) and R(D^{*})=0.270±0.035(stat)_{-0.025}^{+0.028}(syst), are consistent with the theoretical predictions of the standard model.

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The Physics of the B Factories

et al. 2014

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Lepton-Flavor-Dependent Angular Analysis of B→K*ℓ+ℓ−

Wehle¹,

Niebuhr²,

Yashchenko³

et al. 2017

Phys. Rev. Lett.

329

301

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Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry forB→K(*)l+l−

Wei¹,

Chang²,

Adachi³

et al. 2009

Phys. Rev. Lett.

372

285

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We study B --> K(*)l+l- decays (l = e, mu) based on a data sample of 657 x 10(6) BB pairs collected with the Belle detector at the KEKB e+e- collider. We report the differential branching fraction, isospin asymmetry, K* polarization, and the forward-backward asymmetry (A(FB)) as functions of q2 = M(ll)(2)c2. The fitted A(FB) spectrum exceeds the standard model expectation by 2.7 standard deviations. The measured branching fractions are B(B --> K*l+l-) = (10.7(-1.0)(+1.1) +/- 0.9) x 10(-7) and B(B --> Kl+l-) = (4.8(-0.4)(+0.5) +/- 0.3) x 10(-7), where the first errors are statistical and the second are systematic, with the muon to electron ratios R(K*) = 0.83 +/- 0.17 +/- 0.08 and R(K) = 1.03 +/- 0.19 +/- 0.06.

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M. Z. Wang

Measurement of the branching ratio ofB¯→D()τ
Huschle¹,
Kuhr²,
Heck³
et al. 2015
Phys. Rev. D*
703
27
695
2
View full text Add to dashboard Cite

Measurement of the τ Lepton Polarization and R(D) in the Decay
Hirose¹,
Iijima²,
Adachi³
et al. 2017
Phys. Rev. Lett.*

The Physics of the B Factories

Lepton-Flavor-Dependent Angular Analysis of B→K*ℓ+ℓ−

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry forB→K(*)l+l−

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M. Z. Wang

Measurement of the branching ratio ofB¯→D(*)τHuschle1, Kuhr2, Heck3 et al. 2015Phys. Rev. D703276952View full textAdd to dashboardCite

Measurement of the τ Lepton Polarization and R(D*) in the Decay Hirose1, Iijima2, Adachi3 et al. 2017Phys. Rev. Lett.

The Physics of the B Factories

Lepton-Flavor-Dependent Angular Analysis of B→K*ℓ+ℓ−

Measurement of the Differential Branching Fraction and Forward-Backward Asymmetry forB→K(*)l+l−

Contact Info

Product

Resources

About

Measurement of the branching ratio ofB¯→D()τ
Huschle¹,
Kuhr²,
Heck³
et al. 2015
Phys. Rev. D*
703
27
695
2
View full text Add to dashboard Cite

Measurement of the τ Lepton Polarization and R(D) in the Decay
Hirose¹,
Iijima²,
Adachi³
et al. 2017
Phys. Rev. Lett.*