Outputs (14)

Determining the lifetime of long-lived particles at the HL-LHC (2021)
Journal Article
Banerjee, S., Bhattacherjee, B., Goudelis, A., Herrmann, B., Sengupta, D., & Sengupta, R. (2021). Determining the lifetime of long-lived particles at the HL-LHC. The European Physical Journal C, 81(2), Article 172. https://doi.org/10.1140/epjc/s10052-021-08945-9

We examine the capacity of the Large Hadron Collider to determine the mean proper lifetime of long-lived particles assuming different decay final states. We mostly concentrate on the high luminosity runs of the LHC, and therefore, develop our discuss... Read More about Determining the lifetime of long-lived particles at the HL-LHC.

Towards the ultimate differential SMEFT analysis (2020)
Journal Article
Banerjee, S., Gupta, R. S., Reiness, J. Y., Seth, S., & Spannowsky, M. (2020). Towards the ultimate differential SMEFT analysis. Journal of High Energy Physics, 2020(9), https://doi.org/10.1007/jhep09%282020%29170

We obtain SMEFT bounds using an approach that utilises the complete multi-dimensional differential information of a process. This approach is based on the fact that at a given EFT order, the full angular distribution in the most important electroweak... Read More about Towards the ultimate differential SMEFT analysis.

Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung (2019)
Journal Article
Banerjee, S., Gupta, R. S., Reiness, J. Y., & Spannowsky, M. (2019). Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung. Physical Review D, 100(11), Article 115004. https://doi.org/10.1103/physrevd.100.115004

We propose differential observables for pp → Zðlþl−Þhðb¯bÞ that can be used to completely determine the tensor structure of the hZZ=hZ¯ff couplings relevant to this process in the dimension-six Standard Model (SM) effective field theory. In particula... Read More about Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung.

Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case (2019)
Journal Article
Banerjee, S., Boudjema, F., Chakrabarty, N., Chalons, G., & Sun, H. (2019). Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case. Physical Review D, 100(9), Article 095024. https://doi.org/10.1103/physrevd.100.095024

A full renormalization of the inert doublet model is presented and exploited for a precise calculation of the relic density of dark matter (DM) at one-loop. In this first paper, we study the case of a DM candidate with mDM ∼ 500 GeV. In this regime,... Read More about Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case.

Revisiting the tt¯hh channel at the FCC-hh (2019)
Journal Article
Banerjee, S., Krauss, F., & Spannowsky, M. (2019). Revisiting the tt¯hh channel at the FCC-hh. Physical Review D, 100(7), Article 073012. https://doi.org/10.1103/physrevd.100.073012

The exploration of the scalar sector of the Standard Model is at the core of current and future science programs at collider experiments, with increasing focus on the self-interaction of the Higgs boson. This important parameter of the Higgs sector c... Read More about Revisiting the tt¯hh channel at the FCC-hh.

Resonant heavy Higgs searches at the HL-LHC (2019)
Journal Article
Adhikary, A., Banerjee, S., Barman, R. K., & Bhattacherjee, B. (2019). Resonant heavy Higgs searches at the HL-LHC. Journal of High Energy Physics, 2019(9), Article 068. https://doi.org/10.1007/jhep09%282019%29068

In this work, we show the importance of searches for heavy resonant scalars (H) and pseudoscalars (A). Taking cue from the present searches, we make projections for searches in an extended scalar sector at the high luminosity run of the Large Hadron... Read More about Resonant heavy Higgs searches at the HL-LHC.

Probes of the Standard Model effective field theory extended with a right-handed neutrino (2019)
Journal Article
Alcaide, J., Banerjee, S., Chala, M., & Titov, A. (2019). Probes of the Standard Model effective field theory extended with a right-handed neutrino. Journal of High Energy Physics, 2019(8), Article 31. https://doi.org/10.1007/jhep08%282019%29031

If neutrinos are Dirac particles and, as suggested by the so far null LHC results, any new physics lies at energies well above the electroweak scale, the Standard Model effective field theory has to be extended with operators involving the right-hand... Read More about Probes of the Standard Model effective field theory extended with a right-handed neutrino.

A revisit to scalar dark matter with radiative corrections (2019)
Journal Article
Banerjee, S., & Chakrabarty, N. (2019). A revisit to scalar dark matter with radiative corrections. Journal of High Energy Physics, 2019(5), Article 150. https://doi.org/10.1007/jhep05%282019%29150

Extended Higgs sectors have been studied extensively in context of dark matter phenomenology in tandem with other aspects. In this study, we compute radiative corrections to the dark matter-Higgs portal coupling, which is in fact a common feature of... Read More about A revisit to scalar dark matter with radiative corrections.

Dark matter and collider signals in an MSSM extension with vector-like multiplets (2018)
Journal Article
Araz, J. Y., Banerjee, S., Frank, M., Fuks, B., & Goudelis, A. (2018). Dark matter and collider signals in an MSSM extension with vector-like multiplets. Physical Review D, 98(11), Article 115009. https://doi.org/10.1103/physrevd.98.115009

Motivated by grand unification considerations, we analyse a simple extension of the minimal supersymmetric standard model with additional pairs of vector-like chiral supermultiplets. We focus on the so-called LND setup, which enlarges the particle co... Read More about Dark matter and collider signals in an MSSM extension with vector-like multiplets.

Novel signature for long-lived particles at the LHC (2018)
Journal Article
Banerjee, S., Bélanger, G., Bhattacherjee, B., Boudjema, F., Godbole, R. M., & Mukherjee, S. (2018). Novel signature for long-lived particles at the LHC. Physical Review D, 98(11), Article 115026. https://doi.org/10.1103/physrevd.98.115026

In contrast to the decay products ensuing from a fast moving particle which are collimated along the original direction of the parent, those from a slow moving particle are distributed over a wide region. In the context of searches for heavy long-liv... Read More about Novel signature for long-lived particles at the LHC.

Probing electroweak precision physics via boosted Higgs-strahlung at the LHC (2018)
Journal Article
Banerjee, S., Englert, C., Gupta, R. S., & Spannowsky, M. (2018). Probing electroweak precision physics via boosted Higgs-strahlung at the LHC. Physical Review D, 98(9), Article 095012. https://doi.org/10.1103/physrevd.98.095012

We study the process pp → Zðlþl−Þhðbb¯Þ in the standard model effective field theory (SMEFT) at high energies using subjet techniques to reconstruct the Higgs boson. We show that at high energies this process probes four directions in the dimension-6... Read More about Probing electroweak precision physics via boosted Higgs-strahlung at the LHC.

Long-lived stau, sneutrino dark matter and right-slepton spectrum (2018)
Journal Article
Banerjee, S., Bélanger, G., Ghosh, A., & Mukhopadhyaya, B. (2018). Long-lived stau, sneutrino dark matter and right-slepton spectrum. Journal of High Energy Physics, 2018(9), Article 143. https://doi.org/10.1007/jhep09%282018%29143

The minimal supersymmetric (SUSY) standard model (MSSM) augmented by right chiral sneutrinos may lead to one such sneutrino serving as the lightest supersymmetric particle and a non-thermal dark matter candidate, especially if neutrinos have Dirac ma... Read More about Long-lived stau, sneutrino dark matter and right-slepton spectrum.

Revisiting the non-resonant Higgs pair production at the HL-LHC (2018)
Journal Article
Adhikary, A., Banerjee, S., Barman, R. K., Bhattacherjee, B., & Niyogi, S. (2018). Revisiting the non-resonant Higgs pair production at the HL-LHC. Journal of High Energy Physics, 2018(7), Article 116. https://doi.org/10.1007/jhep07%282018%29116

We study the prospects of observing the non-resonant di-Higgs pair production in the Standard Model (SM) at the high luminosity run of the 14 TeV LHC (HL-LHC), upon combining multiple final states chosen on the basis of their yield and cleanliness. I... Read More about Revisiting the non-resonant Higgs pair production at the HL-LHC.

hh+Jet production at 100 TeV (2018)
Journal Article
Banerjee, S., Englert, C., Mangano, M. L., Selvaggi, M., & Spannowsky, M. (2018). hh+Jet production at 100 TeV. The European Physical Journal C, 78(4), Article 322. https://doi.org/10.1140/epjc/s10052-018-5788-y

Higgs pair production is a crucial phenomenological process in deciphering the nature of the TeV scale and the mechanism underlying electroweak symmetry breaking. At the Large Hadron Collider, this process is statistically limited. Pushing the energy... Read More about hh+Jet production at 100 TeV.