Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Mellado, Bruce"'
Autor:
Ashanujjaman, Saiyad, Banik, Sumit, Coloretti, Guglielmo, Crivellin, Andreas, Maharathy, Siddharth P., Mellado, Bruce
In this article, we examine the Standard Model extended by a $Y=0$ real Higgs triplet, the $\Delta$SM. It contains a $CP$-even neutral Higgs ($\Delta^0$) and two charged Higgs bosons ($\Delta^\pm$), which are quasi-degenerate in mass. We first study
Externí odkaz:
http://arxiv.org/abs/2411.18618
Autor:
Sharma, Pramod, Mulaudzi, Anza-Tshilidzi, Mosala, Karabo, Mathaha, Thuso, Kumar, Mukesh, Mellado, Bruce, Crivellin, Andreas, Titov, Maxim, Ruan, Manqi, Fang, Yaquan
The Large Electron Positron collider observed an indication for a new Higgs boson with a mass around $95$\,GeV-$100$\,GeV in the process $e^+e^-\to Z^*\to ZS$ with $S\to b\bar b$. The interest in this excess re-emerged with the di-photon signature at
Externí odkaz:
http://arxiv.org/abs/2407.16806
Autor:
Crivellin, Andreas, Ashanujjaman, Saiyad, Banik, Sumit, Coloretti, Guglielmo, Maharathy, Siddharth P., Mellado, Bruce
Despite intensive searches at the LHC, no new fundamental particle has been discovered since the discovery of the 125 GeV Higgs boson. In general, a new physics discovery is challenging without a UV-complete model because different channels and obser
Externí odkaz:
http://arxiv.org/abs/2404.14492
Autor:
Lieberman, Benjamin, Dahbi, Salah-Eddine, Crivellin, Andreas, Stevenson, Finn, Tripathi, Nidhi, Kumar, Mukesh, Mellado, Bruce
Publikováno v:
SciPost Phys. Core 7, 073 (2024)
To mitigate the model dependencies of searches for new narrow resonances at the Large Hadron Collider (LHC), semi-supervised Neural Networks (NNs) can be used. Unlike fully supervised classifiers these models introduce an additional look-elsewhere ef
Externí odkaz:
http://arxiv.org/abs/2404.07822
Autor:
Ashanujjaman, Saiyad, Banik, Sumit, Coloretti, Guglielmo, Crivellin, Andreas, Maharathy, Siddharth P., Mellado, Bruce
The multi-lepton anomalies and searches for the associated production of a narrow resonance indicate the existence of a $\approx$151 GeV Higgs with a significance of $>5\sigma$ and $>3.9\sigma$, respectively. On the one hand, these anomalies require
Externí odkaz:
http://arxiv.org/abs/2402.00101
The LHC analyses of processes containing two or more leptons and missing energy, possibly in association with b-jets, show strong tensions with the Standard Model predictions and are known as multi-lepton anomalies. In particular, top-quark different
Externí odkaz:
http://arxiv.org/abs/2312.17314
We present growing excesses consistent with a 95 GeV scalar. We provide a comprehensive analysis of the Two Higgs Doublet Model and an additional singlet (2HDM+S) at future $e^{+} e^{-}$ collider. In particular, we provide a precise mass reconstructi
Externí odkaz:
http://arxiv.org/abs/2312.11874
Following a discussion on $W$-boson mass observed at the CDF and ATLAS, we explore the parameter space allowed in the 2HDM+$S$ model. Further, the model parameter space is constrained through vector-like leptons via muon $g-2$ measurements. We show o
Externí odkaz:
http://arxiv.org/abs/2312.08807
ATLAS found that none of their Standard Model simulations can describe the measured differential lepton distributions in their $t \bar{t}$ analysis reasonably well. Therefore, we study the possibility that this measurement has a new physics contamina
Externí odkaz:
http://arxiv.org/abs/2312.01458
Autor:
Perikli, Nicholas, Bhattacharya, Srimoy, Ogbuokiri, Blessing, Nia, Zahra Movahedi, Lieberman, Benjamin, Tripathi, Nidhi, Dahbi, Salah-Eddine, Stevenson, Finn, Bragazzi, Nicola, Kong, Jude, Mellado, Bruce
Very large numbers of M-pox cases have, since the start of May 2022, been reported in non-endemic countries leading many to fear that the M-pox Outbreak would rapidly transition into another pandemic, while the COVID-19 pandemic ravages on. Given the
Externí odkaz:
http://arxiv.org/abs/2310.04453