Search Results - "Ipsita, N."
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Search for lepton-flavor-violating τ decays into a lepton and a vector meson using the full Belle data sample
Published in The journal of high energy physics (21-06-2023)“…A bstract Charged-lepton-flavor-violation is predicted in several new physics scenarios. We update the analysis of τ lepton decays into a light charged lepton…”
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2
Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle
Published in The journal of high energy physics (23-02-2024)“…A bstract We report a search for the charged-lepton flavor violation in Υ(2 S ) → ℓ ∓ τ ± ( ℓ = e, μ ) decays using a 25 fb − 1 Υ(2 S ) sample collected by the…”
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3
Evidence of a New Excited Charmed Baryon Decaying to Σ c ( 2455 ) 0 , + + π
Published in Physical review letters (01-01-2023)“…Not provided…”
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4
Search for the Lepton Flavor Violating Decays B^{+}→K^{+}τ^{±}ℓ^{∓} (ℓ=e, μ) at Belle
Published in Physical review letters (30-06-2023)“…We present a search for the lepton flavor violating decays B^{+}→K^{+}τ^{±}ℓ^{∓}, with ℓ=(e,μ), using the full data sample of 772×10^{6} BB[over ¯] pairs…”
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5
Measurement of the Λ c + Lifetime
Published in Physical review letters (16-02-2023)“…An absolute measurement of the $\Lambda^{+}_c$ lifetime is reported using $\Lambda_c^+\rightarrow pK^-\pi^+$ decays in events reconstructed from data collected…”
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6
Measurement of CP Violation in B0 → KS0π0 Decays at Belle II
Published in Physical review letters (14-09-2023)“…We report a measurement of the $C\!P$-violating parameters $A$ and $S$ in $B^{0}\to K_{S}^{0} \pi^{0}$ decays at Belle II using a sample of $387\times 10^{6}$…”
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Measurement of Angular Coefficients of Bover ¯→D^{}ℓνover ¯_{ℓ}: Implications for |V_{cb}| and Tests of Lepton Flavor Universality
Published in Physical review letters (27-09-2024)“…We measure the complete set of angular coefficients J_{i} for exclusive B[over ¯]→D^{*}ℓν[over ¯]_{ℓ} decays (ℓ=e, μ). Our analysis uses the full 711 fb^{-1}…”
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8
Search for Rare b → d ℓ + ℓ − Transitions at Belle
Published in Physical review letters (05-09-2024)“…We present the results of a search for the b → d ℓ + ℓ − flavor-changing neutral-current rare decays B + , 0 → ( η , ω , π + , 0 , ρ + , 0 ) e + e − and B + ,…”
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9
Measurements of the Branching Fraction, Polarization, and CP Asymmetry for the Decay B^{0}→ωω
Published in Physical review letters (23-08-2024)“…We present a comprehensive study of B^{0}→ωω decays using 772×10^{6} BB[over ¯] pairs collected with the Belle detector at the KEKB e^{+}e^{-} collider. This…”
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10
Search for Baryon-Number-Violating Processes in B^{-} Decays to the Ξover ¯_{c}^{0}Λover ¯_{c}^{-} Final State
Published in Physical review letters (16-08-2024)“…We report the results of the first search for B^{-} decays to the Ξ[over ¯]_{c}^{0}Λ[over ¯]_{c}^{-} final state using 711 fb^{-1} of data collected at the…”
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11
First Measurement of R ( X τ / ℓ ) as an Inclusive Test of the b → c τ ν Anomaly
Published in Physical review letters (23-05-2024)“…We measure the tau-to-light-lepton ratio of inclusive B -meson branching fractions R ( X τ / ℓ ) ≡ B ( B → X τ ν ) / B ( B → X ℓ ν ) , where ℓ indicates an…”
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12
Search for the double-charmonium state with ηcJ/ψ at Belle
Published in The journal of high energy physics (18-08-2023)“…A bstract We measure the cross section of e + e − → η c J/ψ at the Υ( nS )( n = 1–5) on-resonance and 10.52 GeV off-resonance energy points using the full data…”
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13
Search for Bs0→ ℓ∓τ± with the semi-leptonic tagging method at Belle
Published in The journal of high energy physics (01-09-2023)“…A bstract We present a search for the lepton-flavor-violating decays B s 0 → ℓ ∓ τ ± , where ℓ = e, μ , using the full data sample of 121 fb − 1 collected at…”
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14
First Simultaneous Determination of Inclusive and Exclusive | V u b
Published in Physical review letters (01-11-2023)Get full text
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15
First Measurement of the Michel Parameter ξ′ in the τ− → μ− ν ¯ μντ Decay at Belle
Published in Physical review letters (01-07-2023)“…Not provided…”
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First Measurement of the Michel Parameter ξ ′ in the τ − → μ − ν ¯ μ ν τ Decay at Belle
Published in Physical review letters (01-07-2023)Get full text
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First measurement of the Michel parameter $\xi^\prime$ in the $\tau^-\to\mu^-\bar{\nu}_\mu\nu_\tau$ decay at Belle
Published in Physical review letters (01-07-2023)“…We report the first measurement of the Michel parameter ξ′ in the τ−→μ−¯νμντ decay with a new method proposed just recently. The measurement is based on the…”
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18
Search for the lepton flavour violating decays $B^{+} \to K^{+} \tau^\pm \ell^\mp$ ($\ell = e, \mu$) at Belle
Published in Physical review letters (28-06-2023)“…We present a search for the lepton-flavour-violating decays $B^+ \to K^+ \tau^\pm \ell^\mp$, with $\ell = (e, \mu)$, using the full data sample of $772 \times…”
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Measurement of CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± with D → $$ {K}_{\textrm{S}}^0 $$K±π∓ using Belle and Belle II data
Published in The journal of high energy physics (21-09-2023)“…A bstract We measure CP asymmetries and branching-fraction ratios for B ± → DK ± and Dπ ± decays with D → $$ {K}_{\textrm{S}}^0 $$ K S 0 K ± π ∓ , where D is a…”
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20
Search for $$ {\textrm{B}}_{\textrm{s}}^0 $$ → ℓ∓τ± with the semi-leptonic tagging method at Belle
Published in The journal of high energy physics (28-08-2023)“…A bstract We present a search for the lepton-flavor-violating decays $$ {B}_s^0 $$ B s 0 → ℓ ∓ τ ± , where ℓ = e, μ , using the full data sample of 121 fb − 1…”
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