8 papers
LHC signatures of a light pseudoscalar in a flipped two-Higgs scenario: the usefulness of boosted pairs
Dilip Kumar Ghosh, Biswarup Mukhopadhyaya, Sirshendu Samanta +1
Similar to some other two-Higgs doublet models (2HDM), the flipped 2HDM admits of a light pseudoscalar physical state whose mass can be well below 50 GeV. The fact that the pseudos…
Improving sensitivity of vectorlike top partner searches with jet substructure
Anupam Ghosh, Soumyadip Ghosh, Soureek Mitra +2
Vectorlike quark partners appear in many BSM models and remain an important area of research, as they can offer insights into the electroweak symmetry breaking mechanism. In this w…
Chasing Long-Lived Doubly Charged Scalars at Future Lepton Colliders
Nandini Das, Dilip Kumar Ghosh, Nivedita Ghosh +1
We come up with a novel search strategy for long-lived doubly charged scalars at future proposed lepton colliders. The doubly charged scalar studied in this work belongs to an $SU(…
Probing anomalous couplings in the SMEFT with $e^-e^+ \to W^-W^+ \to 4j/\ell^-\ell^+\slashed{E}$ channel
Amir Subba, Ritesh K. Singh
We investigate anomalous charged triple gauge boson couplings induced by gauge-invariant dimension-6 operators in the HISZ basis through the processes $e^-e…
Probing the low mass pseudoscalar in flipped Two Higgs Doublet Model
Dilip Kumar Ghosh, Biswarup Mukhopadhyaya, Sirshendu Samanta +1
The phenomenology of the flipped two-Higgs-doublet model (2HDM) is relatively less explored so far, as compared to the other, commonly discussed, types. It is found that this scena…
Bounds on SMEFT affecting multi gauge and Higgs-gauge couplings using two and three body spin correlations in $e^-e^+\to 3l2j\slashed{E}$ process
Amir Subba, Ritesh K. Singh
The upcoming electron-positron collider provides an ideal place to probe deviation from the Standard Model predictions with its clean environment, beam polarization and significant…