R. B. Garg
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View article: Training and onboarding initiatives in high energy physics experiments
Training and onboarding initiatives in high energy physics experiments Open
In this article we document the current analysis software training and onboarding activities in several High Energy Physics (HEP) experiments: ATLAS, CMS, LHCb, Belle II and DUNE. Fast and efficient onboarding of new collaboration members …
View article: Machine learning enabled measurements of astrophysical (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>n</mml:mi></mml:mrow></mml:math>) reactions with the SECAR recoil separator
Machine learning enabled measurements of astrophysical () reactions with the SECAR recoil separator Open
The synthesis of heavy elements in supernovae is affected by low-energy (n,p) and (p,n) reactions on unstable nuclei, yet experimental data on such reaction rates are scarce. The SECAR (SEparator for CApture Reactions) recoil separator at …
View article: Measurement of Angular Coefficients 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>*</mml:mo></mml:mrow></mml:msup><mml:mo>ℓ</mml:mo><mml:msub><mml:mrow><mml:mover accent="true"><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover></mml:mrow><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math>: Implications for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false">|</mml:mo><mml:msub><mml:mrow><mml:mi>V</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mo stretchy="false">|</mml:mo></mml:mrow></mml:math> and Tests of Lepton Flavor Universality
Measurement of Angular Coefficients of : Implications for and Tests of Lepton Flavor Universality Open
We measure the complete set of angular coefficients Ji for exclusive B¯→D*ℓν¯ℓ decays (ℓ=e, μ). Our analysis uses the full 711 fb−1 Belle dataset with hadronic tag-side reconstruction. The results allow us to extract the form factors desc…
View article: Study of Υ(10753) decays to π+π−Υ(nS) final states at Belle II
Study of Υ(10753) decays to π+π−Υ(nS) final states at Belle II Open
View article: First Measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>R</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msub><mml:mrow><mml:mi>X</mml:mi></mml:mrow><mml:mrow><mml:mi>τ</mml:mi><mml:mo>/</mml:mo><mml:mo>ℓ</mml:mo></mml:mrow></mml:msub><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math> as an Inclusive Test of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>b</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>c</mml:mi><mml:mi>τ</mml:mi><mml:mi>ν</mml:mi></mml:mrow></mml:math> Anomaly
First Measurement of as an Inclusive Test of the Anomaly Open
We measure the tau-to-light-lepton ratio of inclusive B-meson branching fractions R(Xτ/ℓ)≡B(B→Xτν)/B(B→Xℓν), where ℓ indicates an electron or muon, and thereby test the universality of charged-current weak interactions. We select events th…
View article: Recent flavor and dark-sector results from Belle II
Recent flavor and dark-sector results from Belle II Open
The Belle II experiment at the SuperKEKB energy-asymmetric e+e− collider is the upgraded successor of the B-factory facility at the KEK laboratory, Japan. The designed instantaneous luminosity of the machine is 6×1035cm−2s−1. The Belle II …
View article: Search for the semileptonic decays <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mi>c</mml:mi><mml:mn>0</mml:mn></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi mathvariant="normal">Ξ</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:msup><mml:mo>ℓ</mml:mo><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mo>ℓ</mml:mo><mml:mo>−</mml:mo></mml:msup></mml:math> at Belle
Search for the semileptonic decays at Belle Open
Using the full data sample of 980 fb−1 collected with the Belle detector at the KEKB asymmetric energy electron-positron collider, we report the results of the first search for the rare semileptonic decays Ξc0→Ξ0ℓ+ℓ− (ℓ=e or μ). No signif…
View article: Search for a pentaquark state decaying into $pJ/ψ$ in $Υ(1,2S)$ inclusive decays at Belle
Search for a pentaquark state decaying into $pJ/ψ$ in $Υ(1,2S)$ inclusive decays at Belle Open
Using the data samples of 102 million $Υ(1S)$ and 158 million $Υ(2S)$ events collected by the Belle detector, we search for a pentaquark state in the $pJ/ψ$ final state from $Υ(1,2S)$ inclusive decays. Here, the charge-conjugate $\bar{p}J/…
View article: Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle
Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle Open
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 Belle detector at the KEKB e + e − asymmetric-energy collider. We find no evide…
View article: Search for the decay <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msubsup><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi><mml:msup><mml:mrow><mml:mi>π</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math> at Belle experiment
Search for the decay at Belle experiment Open
We have analyzed 121.4 fb−1 of data collected at the ϒ(5S) resonance by the Belle experiment using the KEKB asymmetric-energy e+e− collider to search for the decay Bs0→J/ψπ0. We observe no signal and report an upper limit on the branching…
View article: Search for baryon and lepton number violating decays <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>D</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>p</mml:mi><mml:mo>ℓ</mml:mo></mml:mrow></mml:math>
Search for baryon and lepton number violating decays Open
We search for the baryon and lepton number violating charm decays, D→pℓ, where D is either a D0 or a D¯0 and ℓ is a muon or an electron, using a data sample of 921 fb−1 collected by the Belle detector at the KEKB asymmetric energy e+e− co…
View article: Exotic production and decays of the 125 GeV Higgs - ATLAS
Exotic production and decays of the 125 GeV Higgs - ATLAS Open
Since its discovery in 2012, the Higgs boson has been recognized as a promising candidate for exploring new physics beyond the Standard Model. The ATLAS collaboration has \nundertaken extensive efforts to investigate various potential scen…
View article: Advances in developing deep neural networks for finding primary vertices in proton-proton collisions at the LHC
Advances in developing deep neural networks for finding primary vertices in proton-proton collisions at the LHC Open
We are studying the use of deep neural networks (DNNs) to identify and locate primary vertices (PVs) in proton-proton collisions at the LHC. Earlier work focused on finding primary vertices in simulated LHCb data using a hybrid approach th…
View article: Potentiality of automatic parameter tuning suite available in ACTS track reconstruction software framework
Potentiality of automatic parameter tuning suite available in ACTS track reconstruction software framework Open
Particle tracking is among the most sophisticated and complex part of the full event reconstruction chain. A number of reconstruction algorithms work in a sequence to build these trajectories from detector hits. Each of these algorithms us…
View article: Study of Υ(10753) decays to π$^{+}$π$^{−}$Υ(nS) final states at Belle II
Study of Υ(10753) decays to π$^{+}$π$^{−}$Υ(nS) final states at Belle II Open
We present an analysis of the process e$^{+}$e$^{−}$ → π$^{+}$π$^{−}$Υ(nS) (where n = 1, 2, or 3) reconstructed in 19.6 fb$^{−1}$ of Belle II data during a special run of the SuperKEKB collider at four energy points near the peak of the Υ(…
Search for violation in (, ) decays and observation of the Cabibbo-suppressed decay Open
View article: Auto-tuning capabilities of the ACTS track reconstruction suite
Auto-tuning capabilities of the ACTS track reconstruction suite Open
The reconstruction of charged particle trajectories is a crucial challenge of particle physics experiments as it directly impacts particle reconstruction and physics performances. To reconstruct these trajectories, different reconstruction…
View article: Search for a Heavy Neutrino in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>τ</mml:mi></mml:math> Decays at Belle
Search for a Heavy Neutrino in Decays at Belle Open
We report on a search for a heavy Majorana neutrino in the decays τ^{-}→π^{-}ν_{h}, ν_{h}→π^{±}l^{∓}, l=e, μ. The results are obtained using the full data sample of 988 fb^{-1} collected with the Belle detector at the KEKB asymmetric energ…
View article: Search for the decay $B_s^0\to J/ψπ^0$ at Belle experiment
Search for the decay $B_s^0\to J/ψπ^0$ at Belle experiment Open
We have analyzed 121.4 fb$^{-1}$ of data collected at the $Υ(5S)$ resonance by the Belle experiment using the KEKB asymmetric-energy $e^+e^-$ collider to search for the decay $B_s^0\to J/ψπ^0$. We observe no signal and report an upper limi…
View article: Measurement of Angular Coefficients of $\bar{B} \to D^* \ell \barν_\ell$: Implications for $|V_{cb}|$ and Tests of Lepton Flavor Universality
Measurement of Angular Coefficients of $\bar{B} \to D^* \ell \barν_\ell$: Implications for $|V_{cb}|$ and Tests of Lepton Flavor Universality Open
We measure the complete set of angular coefficients $J_i$ for exclusive $\bar{B} \to D^* \ell \barν_\ell$ decays ($\ell = e, μ$). Our analysis uses the full $711\,\mathrm{fb}^{-1}$ Belle data set with hadronic tag-side reconstruction. The …
View article: Training and Onboarding initiatives in High Energy Physics experiments
Training and Onboarding initiatives in High Energy Physics experiments Open
In this paper we document the current analysis software training and onboarding activities in several High Energy Physics (HEP) experiments: ATLAS, CMS, LHCb, Belle II and DUNE. Fast and efficient onboarding of new collaboration members is…
View article: Search for baryon and lepton number violating decays $\boldsymbol{D \rightarrow p\ell}$
Search for baryon and lepton number violating decays $\boldsymbol{D \rightarrow p\ell}$ Open
We search for the baryon and lepton number violating charm decays, $D \rightarrow p\ell$, where $D$ is either a $D^0$ or a $\overline{D}^0$ and $\ell$ is a muon or an electron, using a data sample of $921\,\mathrm{fb}^{-1}$ collected by th…
View article: Advances in developing deep neural networks for finding primary vertices in proton-proton collisions at the LHC
Advances in developing deep neural networks for finding primary vertices in proton-proton collisions at the LHC Open
We are studying the use of deep neural networks (DNNs) to identify and locate primary vertices (PVs) in proton-proton collisions at the LHC. Earlier work focused on finding primary vertices in simulated LHCb data using a hybrid approach th…
View article: Potentiality of automatic parameter tuning suite available in ACTS track reconstruction software framework
Potentiality of automatic parameter tuning suite available in ACTS track reconstruction software framework Open
Particle tracking is among the most sophisticated and complex part of the full event reconstruction chain. A number of reconstruction algorithms work in a sequence to build these trajectories from detector hits. These algorithms use many c…
View article: Search for charged-lepton flavor violation in $Υ(2S) \to \ell^\mpτ^\pm$ ($\ell=e,μ$) decays at Belle
Search for charged-lepton flavor violation in $Υ(2S) \to \ell^\mpτ^\pm$ ($\ell=e,μ$) decays at Belle Open
We report a search for the charged-lepton flavor violation in $Υ(2S) \to \ell^\mpτ^\pm$ ($\ell=e,μ$) decays using a $25~\fbi$ $Υ(2S)$ sample collected by the Belle detector at the KEKB $e^{+}$$e^-$ asymmetric-energy collider. We find no ev…
View article: Search for $$ {\textrm{B}}_{\textrm{s}}^0 $$ → ℓ∓τ± with the semi-leptonic tagging method at Belle
Search for $$ {\textrm{B}}_{\textrm{s}}^0 $$ → ℓ∓τ± with the semi-leptonic tagging method at Belle Open
View article: Observation of a threshold cusp at the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>η</mml:mi></mml:math> threshold in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:msup><mml:mi>K</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> mass spectrum with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi>p</mml:mi><mml:msup><mml:mi>K</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math> decays
Observation of a threshold cusp at the threshold in the mass spectrum with decays Open
We observe a narrow peaking structure in the pK− invariant-mass spectrum near the Λη threshold. The\npeak is clearly seen in 1.5 million events of Λþ\nc → pK−πþ decay using the 980 fb−1 data sample collected\nby the Belle detector at the K…
View article: Search for the decay <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mrow><mml:mo>*</mml:mo><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:msup><mml:mi>τ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>τ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math> at the Belle experiment
Search for the decay at the Belle experiment Open
This paper presents a search for the rare flavor-changing neutral current process using data taken with the Belle detector at the KEKB asymmetric energy $e^+$$e^-$ collider. The analysis is based on the entire $\\Upsilon$$(4S)$ resonance …
View article: Search for the Lepton Flavor Violating Decays <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>τ</mml:mi></mml:mrow><mml:mrow><mml:mo>±</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mo>ℓ</mml:mo></mml:mrow><mml:mrow><mml:mo>∓</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo>ℓ</mml:mo><mml:mo>=</mml:mo><mml:mi>e</mml:mi></mml:mrow></mml:math>, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>μ</mml:mi></mml:mrow></mml:math>) at Belle
Search for the Lepton Flavor Violating Decays (, ) at Belle Open
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 recorded by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We …
View article: CTD2022: Exploration of different parameter optimization algorithms within the context of ACTS software framework
CTD2022: Exploration of different parameter optimization algorithms within the context of ACTS software framework Open
The particle track reconstruction is one of the most important part of the full event reconstruction chain and has a profound impact on the detector and physics performance. The underlying tracking software is also very complex and consist…