S. K. Maurya
A5078471158- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Computational Physics and Python Applications
- Neutrino Physics Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Calibration and Measurement Techniques
- advanced mathematical theories
- Distributed and Parallel Computing Systems
- Advanced NMR Techniques and Applications
- International Science and Diplomacy
- Nuclear physics research studies
- Cosmology and Gravitation Theories
- Atomic and Subatomic Physics Research
- Probabilistic and Robust Engineering Design
- Advanced Algebra and Geometry
- Atmospheric Ozone and Climate
- NMR spectroscopy and applications
Korea Institute of Science & Technology Information
2023
Indian Institute of Technology Guwahati
2022
Banaras Hindu University
2016
In this article, we propose a new class of distribution which is based on the concept exponentiated generalization with some modification so as to provide better result in terms flexibility. Our proposed accommodates various shapes hazard rate including bathtub. Exponential has been taken baseline distribution. Various statistical properties have studied. We used method maximum likelihood for estimation parameters model. Last, analyzed four real datasets illustrate flexibility model...
We report a study of Λ+c→Σ+π0, Λ+c→Σ+η, and Λ+c→Σ+η′ using the data sample corresponding to an integrated luminosity 980 fb−1 collected with Belle detector at KEKB asymmetric-energy e+e− collider. The branching fractions relative Λ+c→Σ+π0 are measured as BΛ+c→Σ+η/BΛ+c→Σ+π0=0.25±0.03±0.01 BΛ+c→Σ+η′/BΛ+c→Σ+π0=0.33±0.06±0.02. Using BΛ+c→Σ+π0=(1.25±0.10)%, we obtain BΛ+c→Σ+η=(3.14±0.35±0.17±0.25)×10−3 BΛ+c→Σ+η′=(4.16±0.75±0.25±0.33)×10−3. Here uncertainties statistical, systematic, from...
We search for the baryon and lepton number violating charm decays, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>D</a:mi><a:mo stretchy="false">→</a:mo><a:mi>p</a:mi><a:mo>ℓ</a:mo></a:mrow></a:math>, where <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mi>D</d:mi></d:math> is either a <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:msup><f:mi>D</f:mi><f:mn>0</f:mn></f:msup></f:math> or <h:math...
We report a search for heavy neutral lepton (HNL) that mixes predominantly with <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>ν</a:mi><a:mi>τ</a:mi></a:msub></a:math>. The utilizes data collected the Belle detector at KEKB asymmetric energy <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>e</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>e</c:mi><c:mo>−</c:mo></c:msup></c:math> collider. sample was and just below...
We measure the complete set of angular coefficients <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>J</a:mi><a:mi>i</a:mi></a:msub></a:math> for exclusive <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mover accent="true"><c:mrow><c:mi>B</c:mi></c:mrow><c:mrow><c:mo stretchy="false">¯</c:mo></c:mrow></c:mover><c:mo...
A bstract We present a measurement of the Cabibbo-Kobayashi-Maskawa unitarity triangle angle ϕ 3 (also known as γ ) using model-independent Dalitz plot analysis B + → D ( $$ {K}_S^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:math> h − , where is either 0 or \overline{D} <mml:mover> <mml:mi>D</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> meson and π K . This first that simultaneously uses...
Based on a data sample of $983\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with the Belle detector at KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider, we present study heavy-flavor-conserving decay ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Lambda}}}_{c}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}$ reconstructed via its $p{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ mode. The branching...
We search for excited charmed baryons in the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msubsup><a:mi mathvariant="normal">Λ</a:mi><a:mi>c</a:mi><a:mo>+</a:mo></a:msubsup><a:mi>η</a:mi></a:math> system using a data sample corresponding to an integrated luminosity of <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mn>980</d:mn><d:mtext> </d:mtext><d:mtext>...
We search for excited charmed baryons in the $\Lambda_c^+\eta$ system using a data sample corresponding to an integrated luminosity of 980 $\rm fb^{-1}$. The were collected by Belle detector at KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. No significant signals are found mass spectrum, including known $\Lambda_c(2880)^+$ and $\Lambda_c(2940)^+$. Clear $\Lambda_c(2940)^+$ observed $pD^0$ spectrum. set upper limits 90\% credibility level on ratios branching fractions decaying relative...
We report the results of first search for $B^-$ decays to $\bar{\Xi}_{c}^{0} \bar{\Lambda}_{c}^{-}$ final state using 711~${\rm fb^{-1}}$ data collected at $\Upsilon(4S)$ resonance with Belle detector KEKB asymmetric-energy $e^+ e^-$ collider. The are interpreted in terms both direct baryon-number-violating decay and $\Xi_{c}^{0}-\bar{\Xi}_{c}^{0}$ oscillations which follow Standard Model $B^- \to \Xi_{c}^{0} \bar{\Lambda}_{c}^{-}$. observe no evidence baryon number violation set 95\%...
We have analyzed <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>121.4</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:msup><a:mrow><a:mi>fb</a:mi></a:mrow><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:mrow></a:math> of data collected at the <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mi mathvariant="normal">ϒ</c:mi><c:mo stretchy="false">(</c:mo><c:mn>5</c:mn><c:mi>S</c:mi><c:mo...
Using the data samples of 102 million $\Upsilon(1S)$ and 158 $\Upsilon(2S)$ events collected by Belle detector, we search for a pentaquark state in $pJ/\psi$ final from $\Upsilon(1,2S)$ inclusive decays. Here, charge-conjugate $\bar{p}J/\psi$ is included. We observe clear production decays measure branching fractions to be $\mathcal{B}[\Upsilon(1S) \to pJ/\psi + anything] = [4.27 \pm 0.16(stat.) 0.20(syst.)] \times 10^{-5}$ $\mathcal{B}[\Upsilon(2S) [3.59 0.14(stat.) 0.16(syst.)] 10^{-5}$....
We report the results of first search for Standard Model and baryon-number-violating two-body decays neutral $B$ mesons to $\Lambda^{0}$ $\Omega^{(*)0}_c$ using 711~${\rm fb^{-1}}$ data collected at $\Upsilon(4S)$ resonance with Belle detector KEKB asymmetric-energy $e^+ e^-$ collider. observe no evidence signal from any such set 95\% confidence-level upper limits on products $B^0$ $\bar{B}^0$ branching fractions these $\mathcal{B}(\Omega_{c}^{0} \to \pi^+ \Omega^-)$ in range between...
We report the results of first search for Standard Model and baryon-number-violating two-body decays neutral <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>B</a:mi></a:math> mesons to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi mathvariant="normal">Λ</c:mi><c:mn>0</c:mn></c:msup></c:math> <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:mrow><f:msubsup><f:mrow><f:mi...
We report the results of first search for <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>B</a:mi><a:mo>−</a:mo></a:msup></a:math> decays to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:msubsup><c:mrow><c:mover accent="true"><c:mrow><c:mi mathvariant="normal">Ξ</c:mi></c:mrow><c:mrow><c:mo...
We have analyzed 121.4 fb$^{-1}$ of data collected at the $\Upsilon(5S)$ resonance by Belle experiment using KEKB asymmetric-energy $e^+e^-$ collider to search for decay $B_s^0\to J/\psi\pi^0$. observe no signal and report an upper limit on branching fraction $\mathcal{B}(B_s^0\to J/\psi\pi^0)$ $1.21\times 10^{-5}$ 90\% confidence level. This result is most stringent, improving previous bound two orders magnitude.
We search for the baryon and lepton number violating charm decays, $D \rightarrow p\ell$, where $D$ is either a $D^0$ or $\overline{D}^0$ $\ell$ muon an electron, using data sample of $921\,\mathrm{fb}^{-1}$ collected by Belle detector at KEKB asymmetric energy $e^{+}e^{-}$ collider. In absence significant signals, we set upper limits on branching fractions in range $(5 - 8) \times 10^{-7}$ 90\% confidence level, depending decay mode.
We measure the complete set of angular coefficients $J_i$ for exclusive $\bar{B} \to D^* \ell \bar{\nu}_\ell$ decays ($\ell = e, \mu$). Our analysis uses full $711\,\mathrm{fb}^{-1}$ Belle data with hadronic tag-side reconstruction. The results allow us to extract form factors describing $B D^*$ transition and Cabibbo-Kobayashi-Maskawa matrix element $|V_{\rm cb}|$. Using recent lattice QCD calculations factors, we find cb}| (41.0 \pm 0.7) \times 10^3 $ using BGL parameterization, compatible...
We present a measurement of the ratio partial branching fractions semi-leptonic inclusive decays, $\overline{B} \to X_{u} \ell \overline{\nu}$ to X_{c} \overline{\nu}$, where $\ell = (e, \mu)$, using full Belle sample $772 \times 10^{6}$ $B \kern 0.18em\overline{\kern -0.18em B}$ pairs collected at $\Upsilon(4S)$ resonance. The is measured via two-dimensional fit squared four-momentum transfer lepton pair, and charged energy in $B$ meson rest frame, latter must be larger than $1$ Ge\kern...
Based on a data sample of 983 fb$^{-1}$ collected with the Belle detector at KEKB asymmetric-energy $e^+e^-$ collider, we present study heavy-flavor-conserving decay $\Xi_{c}^{0}\to \Lambda_{c}^{+}\pi^{-}$ $\Lambda_{c}^{+}$ reconstructed via its $pK^{-} \pi^{+}$ mode. The branching fraction ratio $\mathcal{B}(\Xi_{c}^{0}\to \Lambda_{c}^{+}\pi^{-})/\mathcal{B}(\Xi_{c}^{0}\to \Xi^{-}\pi^{+})$ is measured to be $0.38 \pm 0.04 0.04$. Combing world average value \Xi^{-}\pi^{+})$,...