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We present a new class of unified models based on SO(10) symmetry which provides insights into the masses and mixings of quarks and leptons, including the neutrinos. The key feature of our proposal is the absence of Higgs boson 10_H…

High Energy Physics - Phenomenology · Physics 2016-08-03 K. S. Babu , Borut Bajc , Shaikh Saad

We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precision searches for charged lepton-flavor violation (LFV) are…

High Energy Physics - Phenomenology · Physics 2026-01-28 Pouya Asadi , Hengameh Bagherian , Katherine Fraser , Samuel Homiller , Qianshu Lu

We discuss in detail the constraints on partial compositeness coming from flavour and CP violation in the leptonic sector. In a first part we present a formulation of partial compositeness in terms of a flavour symmetry group and a set of…

High Energy Physics - Phenomenology · Physics 2016-01-27 Ferruccio Feruglio , Paride Paradisi , Andrea Pattori

If supersymmetry (SUSY) will be discovered, successful models of flavour not only have to provide an explanation of the flavour structure of the Standard Model fermions, but also of the flavour structure of their scalar superpartners. We…

High Energy Physics - Phenomenology · Physics 2011-08-05 Stefan Antusch , Lorenzo Calibbi , Vinzenz Maurer , Martin Spinrath

We observe that a recently proposed supersymmetric model with Q6 flavor symmetry admits a new CP violating ground state. A new sum rule for the quark mixing parameters emerges, which is found to be consistent with data. Simple extensions of…

High Energy Physics - Phenomenology · Physics 2011-05-25 K. S. Babu , Kenji Kawashima , Jisuke Kubo

We report on the progress in flavor identification tools developed for a future $e^+e^-$ linear collider such as the International Linear Collider (ILC) and Compact Linear Collider (CLIC). Building on the work carried out by the LCFIVertex…

Instrumentation and Detectors · Physics 2018-04-16 Taikan Suehara , Tomohiko Tanabe

Measurement of Lepton-Flavor Violation (LFV) in the minimal SUSY Standard Model (MSSM) at Large Hadron Collider (LHC) is studied based on a realistic simulation. We consider the LFV decay of the second-lightest neutralino, $\tilde{\chi}^0_2…

High Energy Physics - Phenomenology · Physics 2008-11-26 Junji Hisano , Ryuichiro Kitano , Mihoko M. Nojiri

We study flavor violation in a supersymmetric SU(5) grand unification scenario in a model-independent way employing mass insertions. We examine how the quark and the lepton sector observables restrict sfermion mixings. With a low soft…

High Energy Physics - Phenomenology · Physics 2010-04-21 Pyungwon Ko , Jae-hyeon Park , Masahiro Yamaguchi

We analyze the prospects of observing lepton flavour violation in future e-e- and e+e- linear colliders in scenarios where the gravitino is the lightest supersymmetric particle, and the stau is the next-to-lightest supersymmetric particle.…

High Energy Physics - Phenomenology · Physics 2010-02-03 Alejandro Ibarra , Sourov Roy

Many theories describing physics beyond the Standard Model rely on a large separation of scales. Large scale separation arises in models with mass-split flavors if the system is conformal in the ultraviolet but chirally broken in the…

High Energy Physics - Phenomenology · Physics 2017-08-22 Anna Hasenfratz , Claudio Rebbi , Oliver Witzel

ALICE is the LHC experiment devoted to the study of the Quark-Gluon Plasma (QGP). To probe this high energy density state of strongly interacting matter expected to be produced in heavy-ion collisions at high energies, measurements…

High Energy Physics - Experiment · Physics 2019-08-14 Sarah Porteboeuf-Houssais

We study sensitivity of low-energy experiments to the scale of supersymmetry breaking $\sqrt{F}$ in models with light sgoldstinos --- superpartners of goldstino. The limits on $\sqrt{F}$ may be obtained from direct and indirect measurements…

High Energy Physics - Phenomenology · Physics 2014-11-17 D. S. Gorbunov

Lepton flavor violating processes are optimal observables to test new physics, since they are forbidden in the Standard Model while they may be generated in new theories. The usual approach to these processes is to perform the computations…

High Energy Physics - Phenomenology · Physics 2020-02-18 Xabier Marcano , Roberto A. Morales

The ALICE experiment will be able to detect open charm and beauty hadrons in proton-proton and heavy ion collisions in the new energy regime of the CERN Large Hadron Collider (LHC). Heavy flavours are a powerful tool to investigate the…

Nuclear Experiment · Physics 2008-10-20 Francesco Prino

We study lepton-flavor violating slepton production and decay at a future e^+e^- linear collider in context with the seesaw mechanism in mSUGRA post-LEP benchmark scenarios. The present knowledge in the neutrino sector as well as improved…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Deppisch , H. Päs , A. Redelbach , R. Rückl , Y. Shimizu

The concept of non-abelian horizontal symmetry $SU(3)_H$ can greatly help in understanding the fermion and sfermion flavour structures in supersymmetric grand unification. For the sake of demonstration the $SU(5)\times SU(3)_H$ model,…

High Energy Physics - Phenomenology · Physics 2009-10-28 Zurab Berezhiani

Working within the context of the minimal supersymmetric standard model, we compare current bounds from quark flavor changing processes with current and upcoming bounds on lepton flavor violation. We assume supersymmetry breaking…

High Energy Physics - Phenomenology · Physics 2018-03-07 Sebastian A. R. Ellis , Aaron Pierce

We explore scalar dark matter that is part of a lepton flavor triplet satisfying symmetry requirements under the hypothesis of minimal flavor violation. Beyond the standard model, the theory contains in addition three right-handed neutrinos…

High Energy Physics - Phenomenology · Physics 2015-05-06 Chao-Jung Lee , Jusak Tandean

We study the potential of an e+- e- Linear Collider for charged lepton flavour violation studies in a supersymmetric framework where neutrino masses and mixings are explained by a type-I seesaw. Focusing on e-mu flavour transitions, we…

High Energy Physics - Phenomenology · Physics 2015-03-03 A. J. R. Figueiredo , A. Abada , J. C. Romao , A. M. Teixeira

Within the Composite Higgs paradigm, Partial Compositeness has emerged as an elegant mechanism for generating large flavor hierarchies such as are observed in the quark and lepton masses and mixings. This mechanism exploits the strong…

High Energy Physics - Phenomenology · Physics 2025-07-09 Kaustubh Agashe , Lorenzo Ricci , Raman Sundrum