Zobrazeno 1 - 10
of 2 399
pro vyhledávání: '"Guchait , Monoranjan"'
We reappraise the viability of asymmetric dark matter (ADM) realized as a Dirac fermion coupling dominantly to the Standard Model fermions. Treating the interactions of such a DM particle with quarks/leptons in an effective-interactions framework, we
Externí odkaz:
http://arxiv.org/abs/2402.17265
Boosted top quark tagging is one of the challenging, and at the same time exciting, tasks in high energy physics experiments, in particular in the exploration of new physics signals at the LHC. Several techniques have already been developed to tag a
Externí odkaz:
http://arxiv.org/abs/2304.12846
Autor:
Guchait, Monoranjan, Roy, Arnab
The Standard Model effective field theory (SMEFT) provides a general framework to include the dynamics of the beyond standard model physics residing at a certain higher energy scale $\Lambda$. We study the top-quark production along with a Higgs boso
Externí odkaz:
http://arxiv.org/abs/2212.02769
Publikováno v:
JHEP11(2023)081
We study the prospects of a simultaneous hunt at the Large Hadron Collider (LHC) of relatively light electroweakinos and a singlet-like scalar of the $Z_3$-symmetric Next-to-Minimal Supersymmetric Standard Model ($Z_3$-NMSSM) in the cascade decays of
Externí odkaz:
http://arxiv.org/abs/2211.05905
Autor:
Guchait, Monoranjan, Roy, Arnab
We study the top-quark production along with a Higgs boson and a jet (tHq) at the LHC experiment within the framework of the Standard Model Effective Field Theory (SMEFT). A strategy is developed to constrain the Wilson Coefficients (WC) correspondin
Externí odkaz:
http://arxiv.org/abs/2210.05503
Publikováno v:
Phys. Rev. D 104, 055032 (2021)
The lightest neutralino, assumed to be the lightest supersymmetric particle, is proposed to be a dark matter (DM) candidate for the mass $\cal{O}$(100) GeV. Constraints from various direct dark matter detection experiments and Planck measurements exc
Externí odkaz:
http://arxiv.org/abs/2103.09810
Machine learning techniques are used for treating jets as images to explore the performance of boosted top quark tagging. Tagging performances are studied in both hadronic and leptonic channels of top quark decay, employing a convolutional neural net
Externí odkaz:
http://arxiv.org/abs/2010.11778
Autor:
Guchait, Monoranjan, Roy, Arnab
Publikováno v:
Phys. Rev. D 102, 075023 (2020)
The light singlino-like neutralino is expected to be a promising candidate for DM in the allowed parameter space of the NMSSM. The DM annihilation process takes place via the light Higgs bosons which are natural in this model. Identifying the allowed
Externí odkaz:
http://arxiv.org/abs/2005.05190
Autor:
Godbole, Rohini, Guchait, Monoranjan, Khosa, Charanjit K., Lahiri, Jayita, Sharma, Seema, Vijay, Aravind H.
Publikováno v:
Phys. Rev. D 100, 056010 (2019)
In top quark production, the polarization of top quarks, decided by the chiral structure of couplings, is likely to be modified in the presence of any new physics contribution to the production. Hence the same is a good discriminator for those new ph
Externí odkaz:
http://arxiv.org/abs/1902.08096
Autor:
Guchait, Monoranjan, Vijay, Aravind H.
Publikováno v:
Phys. Rev. D 98, 115028 (2018)
Signature of heavier charged Higgs boson, much above the top quark mass, is investigated at the LHC Run 2 experiments, following its decay mode via top and bottom quark focusing on both hadronic and leptonic signal final states. The generic two Higgs
Externí odkaz:
http://arxiv.org/abs/1806.01317