1.

Pion electromagnetic form factor at high precision with implications to ${a}_{\mu}^{\pi \pi}$ and the onset of perturbative QCD
/ Ananthanarayan, B. ; Caprini, Irinel ; Das, Diganta
We extend recently developed methods used for determining the electromagnetic charge radius and ${a}_{\mu}^{\pi \pi}$ to obtain a determination of the electromagnetic form factor of the pion, ${F}_{\pi}^{V}\left(t\right)$, in several significant kinematical regions, using a parametrizationfree formalism based on analyticity and unitarity, with the inclusion of precise inputs from both timelike and spacelike regions. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.114015
arXiv:1810.09265
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2.

Loop induced ${H}^{\pm}\to {W}^{\pm}Z$ decays in the aligned twoHiggsdoublet model
/ Abbas, Gauhar ; Das, Diganta ; Patra, Monalisa
We present a complete oneloop computation of the ${H}^{\pm}\to {W}^{\pm}Z$ decay in the aligned twoHiggsdoublet model. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.115013
arXiv:1806.11035
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3.

On the angular distribution of Λ b → Λ(→ N π)τ + τ − decay
/ Das, Diganta
We present a full angular distribution of the four body Λ b → Λ(→ N π)ℓ + ℓ − decay where the leptons are massive and the Λ b is unpolarized, in an operator basis which includes the Standard Model operators, new vector and axialvector operators, and scalar and pseudoscalar operators. [...]
Published in JHEP 1807 (2018) 063
10.1007/JHEP07(2018)063
arXiv:1804.08527
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4.

Model independent new physics analysis in Λb→Λμ+μ decay
/ Das, Diganta
We study the rare Λb→Λμ+μ decay in the Standard Model and beyond. [...]
Published in EPJC 78 (2018) 230
10.1140/epjc/s1005201857312
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5.

The B ¯ → K ¯ πℓℓ $$ \overline{B}\to \overline{K}\pi \ell \ell $$ and B ¯ s → K ¯ Kℓℓ $$ {\overline{B}}_s\ \to \overline{K}K\ell \ell $$ distributions at low hadronic recoil
/ Das, Diganta ; Hiller, Gudrun ; Jung, Martin ; Shires, Alex
The rare multibody decays B ¯ → K ¯ πℓℓ $$ \overline{B}\to \overline{K}\pi \ell \ell $$ and B ¯ s → K ¯ Kℓℓ $$ {\overline{B}}_s\ \to \overline{K}K\ell \ell $$ are both important as backgrounds to precision analyses in the benchmark modes B ¯ → K ¯ * ℓℓ $$ \overline{B}\to {\overline{K}}^{*}\ell \ell $$ and B ¯ s → ϕℓℓ $$ {\overline{B}}_s\to \phi \ell \ell $$ as well as sensitive probes of flavor physics in and beyond the standard model. [...]
Published in JHEP 1409 (2014) 109
10.1007/JHEP09(2014)109
arXiv:1406.6681
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