Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Bélanger, Geneviève"'
Autor:
Bélanger, Geneviève, Dutta, Juhi, Godbole, Rohini M., Kraml, Sabine, Mitra, Manimala, Padhan, Rojalin, Roy, Abhishek
Publikováno v:
JHEP10(2024)058
We study the connection between collider and dark matter phenomenology in the singlet extension of the Georgi-Machacek model. In this framework, the singlet scalar serves as a suitable thermal dark matter (DM) candidate. Our focus lies on the region
Externí odkaz:
http://arxiv.org/abs/2405.18332
Autor:
Barman, Rahool Kumar, Bélanger, Genevieve, Bhattacherjee, Biplob, Godbole, Rohini, Sengupta, Rhitaja
In a previous publication, we studied the parameter space of the phenomenological Minimal Supersymmetric Standard Model (pMSSM) with a light neutralino thermal dark matter ($M_{\tilde{\chi}_1^0} \leq M_h/2$) and observed that the recent results from
Externí odkaz:
http://arxiv.org/abs/2402.07991
Publikováno v:
Physical Review D 110, 023039 (2024)
We consider a light scalar dark matter candidate with mass in the GeV range whose $p$-wave annihilation is enhanced through a Breit-Wigner resonance. The annihilation actually proceeds in the $s$-channel via a dark photon mediator whose mass is nearl
Externí odkaz:
http://arxiv.org/abs/2401.02513
We investigate, for the first time, a scenario where the dark matter consists of three complex scalar fields that are stabilized by a single $Z_7$ symmetry. As an extension of the well-known scalar Higgs-portal, this $Z_7$ model is also subject to im
Externí odkaz:
http://arxiv.org/abs/2212.07488
Autor:
Bélanger, Geneviève, Choubey, Sandhya, Godbole, Rohini M., Khan, Sarif, Mitra, Manimala, Roy, Abhishek
Publikováno v:
JHEP11(2022)133
We present an extension of the SM involving three triplet fermions, one triplet scalar and one singlet fermion, which can explain both neutrino masses and dark matter. One triplet of fermions and the singlet are odd under a $Z_2$ symmetry, thus the m
Externí odkaz:
http://arxiv.org/abs/2208.00849
Publikováno v:
SciPost Phys. 13, 124 (2022)
In scenarios with very small dark matter (DM) couplings and small mass splittings between the DM and other dark sector particles, so-called "co-scattering" or "conversion-driven freeze-out" can be the dominant mechanism for DM production. We present
Externí odkaz:
http://arxiv.org/abs/2207.10536
Autor:
Barman, Rahool Kumar, Bélanger, Geneviève, Bhattacherjee, Biplob, Godbole, Rohini M., Sengupta, Rhitaja
Publikováno v:
Phys. Rev. Lett. 131, 011802 (2023)
We explore the parameter space of the phenomenological Minimal Supersymmetric Standard Model (pMSSM) with a light neutralino thermal dark matter ($m_{\tilde{\chi}_1^0} \leq m_h/2$) that is consistent with current collider and astrophysical constraint
Externí odkaz:
http://arxiv.org/abs/2207.06238
The present-day $B$-anomalies involving $b \to s \mu^+ \mu^-$ or $b \to c \tau^- {\bar\nu}$ transitions can all be explained with the addition of a vector $U_1$ leptoquark with a mass of $M_{U_1} \ge 1.8$ TeV. In the scalar singlet dark matter model
Externí odkaz:
http://arxiv.org/abs/2206.11305
Autor:
Belanger, Geneviève, Bharucha, Aoife, Fuks, Benjamin, Goudelis, Andreas, Heisig, Jan, Jueid, Adil, Lessa, Andre, Mohan, Kirtimaan A., Polesello, Giacomo, Pani, Priscilla, Pukhov, Alexander, Sengupta, Dipan, Zurita, José
The measured branching fractions of $B$-mesons into leptonic final states derived by the LHCb collaboration hint towards the breakdown of lepton flavour universality. In this work we take at face value the so-called $R_{D^{(*)}}$ observables that are
Externí odkaz:
http://arxiv.org/abs/2111.08027
Non-minimal simplified extensions of the Standard Model have gained considerable currency in the context of dark matter searches at the LHC, since they predict enhanced mono-Higgs and mono-$W/Z$ signatures over large parts of the parameter space. How
Externí odkaz:
http://arxiv.org/abs/2110.15391