13 papers
Testing varying coupling constants through multi-Higgs production at the LHC
Ulf Danielsson, Rikard Enberg, Gunnar Ingelman +3
We propose the One Scalar Theory (1ST), a minimalist framework where a single real singlet scalar field mediates the dynamical generation of the Higgs self-coupling and the top Yuk…
Photon-initiated enhancements in the pair production of highly charged coloured particles
Tanumoy Mandal, Subhadip Mitra, Rachit Sharma
Strong interaction is typically assumed to dominate the pair production of heavy coloured resonances at the LHC. However, mixed QCD-QED contributions from gluon-photon () init…
Machine learning tagged boosted dark photon: A signature of fermionic portal matter at the LHC
Shivam Verma, Sanjoy Biswas, Tanumoy Mandal +1
We use a Hybrid Deep Neural Network (HDNN) to identify a boosted dark photon jet as a signature of a heavy vector-like fermionic portal matter (PM) connecting the visible and the d…
Vectorlike production through leptoquarks
Shruti Dubey, Nilanjana Kumar, Tanumoy Mandal +2
Numerous phenomenological studies and collider searches have probed for the existence of new physics by looking for signatures of leptoquarks (LQs) or vectorlike leptons (VLLs). We…
Fresh look at the LHC limits on vector leptoquarks
Arijit Das, Tanumoy Mandal, Subhadip Mitra +1
Vector leptoquarks (vLQs) are popular candidates for searching for physics beyond the Standard Model. In this paper, we present updated exclusion limits on various vLQ species, acc…
Tagging fully hadronic exotic decays of the vectorlike quark using a graph neural network
Jai Bardhan, Tanumoy Mandal, Subhadip Mitra +2
Following up on our earlier study in [J. Bardhan et al., Machine learning-enhanced search for a vectorlike singlet B quark decaying to a singlet scalar or pseudoscalar, Phys. Rev.…