Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Bardhan, Debjyoti"'
Publikováno v:
Phys. Rev. D 108, 035036 (2023)
If "dark quarks" from a confining hidden sector are produced at the LHC, they will shower and hadronize to dark sector hadrons, which may decay back to Standard Model particles within the detector, possibly resulting in a collimated spray of particle
Externí odkaz:
http://arxiv.org/abs/2305.04372
Publikováno v:
Phys.Rev.D 107 (2023) 1, 015010
The recoil threshold of Direct Detection experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM particles. However, these light DM particles can be boosted to very high
Externí odkaz:
http://arxiv.org/abs/2208.09405
We analyze the lepton flavor universality violation (LFV) in process $b\to s \ell^+\ell^-$ in an R-parity violating supersymmetric (RPV-SUSY) scenario. The most recent update on $\rk$ from the LHCb collaboration suggests approximately $3.1\sigma$ dev
Externí odkaz:
http://arxiv.org/abs/2107.10163
Publikováno v:
Phys. Rev. D 103, 115003 (2021)
Effective field theory techniques provide us important tools to probe for physics beyond the Standard Model in a relatively model-independent way. In this work, we revisit the CP-even dimension-6 purely gluonic operator to investigate the possible co
Externí odkaz:
http://arxiv.org/abs/2010.13402
Autor:
Bardhan, Debjyoti, Ghosh, Diptimoy
Publikováno v:
Phys. Rev. D 100, 011701 (2019)
In this note, we discuss the impact of the recent Belle result on the various theoretical explanations of the $R_D$ and $R_{D^*}$ anomalies. The pure tensor explanation, which was strongly disfavoured by the measurements of $F_L^{D^*}$ and high-$p_T$
Externí odkaz:
http://arxiv.org/abs/1904.10432
Publikováno v:
In Nuclear Physics, Section B January 2023 986
In recent times, one of the strongest hints of Physics Beyond the Standard Model (BSM) has been the anomaly in the ratios $R_D$ and $R_{D^\ast}$ measured in the charged current decays of $B$-mesons. In this work, we perform a comprehensive analysis o
Externí odkaz:
http://arxiv.org/abs/1805.03209
The recent LHCb measurement of $R_{K^*}$ in two $q^2$ bins, when combined with the earlier measurement of $R_K$, strongly suggests lepton flavour non-universal new physics in semi-leptonic $B$ meson decays. Motivated by these intriguing hints of new
Externí odkaz:
http://arxiv.org/abs/1705.09305
Autor:
Bardhan, Debjyoti
If new physics (e.g. SUSY) does not show up as direct evidence at the LHC, it could still be observable in FCNC processes involving the $t$-quark. We take a close look at the process $t\to c + h/Z$ and show that its branching ratio in the Standard Mo
Externí odkaz:
http://arxiv.org/abs/1705.08486
Autor:
Bardhan, Debjyoti
The measurement of $R_D$ ($R_{D^*}$), the ratio of the branching fraction of $\overline{B} \to D \tau \bar{\nu}_\tau (\overline{B} \to D^* \tau \bar{\nu}_\tau)$ to that of $\overline{B} \to D l \bar{\nu}_l (\overline{B} \to D^* l \bar{\nu}_l)$, shows
Externí odkaz:
http://arxiv.org/abs/1705.07480