Publications related to Sensitivity of the SHiP experiment to Heavy Neutral Leptons

Search for Heavy Neutral Leptons with LHCb

This thesis presents a search for a beyond the Standard Model (SM) heavy neutral lepton (HNL), which does not interact via any of the SM interactions. This hypothetical particle has been proposed by multiple theories as an extension to the SM, and it could ...

EPFL2023

Testing lepton flavour universality in $B^+\to K^+\pi^+\pi^-\ell^+\ell^-$ decays with LHCb

Sara Celani

This PhD thesis aims at testing one of the fundamental properties of the Standard Model (SM) of particle physics: the lepton flavour universality (LFU), which states that

W

and

Z

bosons are equally coupled to the three lepton generations. In this work, ...

EPFL2023

Non-Gaussian superradiant transition via three-body ultrastrong coupling

Fabrizio Minganti

We introduce a class of quantum optical Hamiltonians characterized by three-body couplings and propose a circuit-QED scheme based on state-of-the-art technology that implements the considered model. Unlike two-body light-matter interactions, this three-bod ...

AMER PHYSICAL SOC2023

Exploring the potential of FCC-hh to search for particles from $B$ mesons

Lesya Shchutska, Alexey Boyarsky

The Future Circular Collider (FCC-hh) is a proposed successor of the Large Hadron Collider (LHC). FCC-hh would push both the energy and intensity frontiers of searches for new physics particles. In particular, due to higher energy and luminosity than at th ...

2022

Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the nu MSM

Shintaro Eijima

The nu MSM an extension of the Standard Model by three relatively light singlet Majorana fermions N-1,N-2,N-3 allows for the generation of lepton asymmetry which is several orders of magnitude larger than the observed baryon asymmetry of the Universe. The ...

IOP Publishing Ltd2022

Towards Beam-Beam Simulations for FCC-ee

Xavier Buffat, Tatiana Pieloni, Mike Seidel, Giovanni Iadarola, Péter Kicsiny

The FCC-ee (Future Circular Collider) lepton collider is currently the most favored next generation research infrastructure project at CERN, aimed at studying properties of standard model particles with the highest precision ever. The chosen parameters of ...

JACoW Publishing, Geneva, Switzerland2022

Search for relativistic fractionally charged particles in space

Jian Wang, Yi Zhang, Jennifer Maria Frieden, Chiara Perrina, Zhirui Xu, Siyuan Wang, Songmei Wu, Junqiu Liu, Johan Juul Chang, Jie Chen, Cheng Zhao, Wei Li, Yong Yang, Yi Wang, Hao Liu, Xiao Wang, Shuai Liu, Wenyu Zhang, Xuan Li, Yao Zhang, Ming Gao, Arshia Ruina, Andrii Kotenko

More than a century after the performance of the oil drop experiment, the possible existence of fractionally charged particles (FCPs) still remains unsettled. The search for FCPs is crucial for some extensions of the Standard Model in particle physics. Mos ...

2022

Charm Physics at LHCb

Surapat Ek-In

We review four most precise measurements from charm physics program at the LHCb during 2021. These include the first observation of non-zero mass difference between neutral charm-meson eigenstates, the world most precise determination of both time-dependen ...

PLEIADES PUBLISHING INC2022

An allowed window for heavy neutral leptons below the kaon mass

Alexey Boyarsky, Oleg Ruchayskiy, Inar Timiryasov, Kyrylo Bondarenko, Juraj Klaric

The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, as well as the origin of the matter-antimatter asymmetry in the Universe. The ...

SPRINGER2021

Averages of b-hadron, c-hadron, and tau-lepton properties as of 2018 Heavy Flavor Averaging Group (HFLAV)

Olivier Schneider, Ho Ling Li, Tara Nanut

This paper reports world averages of measurements of b-hadron, c-hadron, and tau-lepton properties obtained by the Heavy Flavour Averaging Group using results available through September 2018. In rare cases, significant results obtained several months late ...

SPRINGER2021

Sensitivity of the SHiP experiment to Heavy Neutral Leptons

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Search for Heavy Neutral Leptons with LHCb

Testing lepton flavour universality in $B^+\to K^+\pi^+\pi^-\ell^+\ell^-$ decays with LHCb

Non-Gaussian superradiant transition via three-body ultrastrong coupling

Exploring the potential of FCC-hh to search for particles from $B$ mesons

Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the nu MSM

Towards Beam-Beam Simulations for FCC-ee

Search for relativistic fractionally charged particles in space

Charm Physics at LHCb

An allowed window for heavy neutral leptons below the kaon mass

Averages of b-hadron, c-hadron, and tau-lepton properties as of 2018 Heavy Flavor Averaging Group (HFLAV)

Testing lepton flavour universality in $B^+\to K^+\pi^+\pi^-\ell^+\ell^-$ decays with LHCb

Non-Gaussian superradiant transition via three-body ultrastrong coupling

Search for Heavy Neutral Leptons with LHCb

Exploring the potential of FCC-hh to search for particles from $B$ mesons

Search for relativistic fractionally charged particles in space

An allowed window for heavy neutral leptons below the kaon mass

Freeze-in and freeze-out generation of lepton asymmetries after baryogenesis in the nu MSM

Charm Physics at LHCb

Towards Beam-Beam Simulations for FCC-ee

Averages of b-hadron, c-hadron, and tau-lepton properties as of 2018 Heavy Flavor Averaging Group (HFLAV)