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We show that in the framework of the 3-3-1 model with right-handed neutrinos, small neutrino masses and large lepton flavor violating processes such as \mu \to 3e and \mu \to e\gamma can be obtained by just introducing an additional Higgs…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. V. Dong , H. N. Long

We explain the difference between the measured decay widths of $b \to c \tau \nu$ processes and of $B\to K\nu\bar{\nu}$ and their values predicted in the Standard Model by introducing the right-handed interactions both to quarks and to…

High Energy Physics - Phenomenology · Physics 2025-02-12 Damir Bečirević , Svjetlana Fajfer , Nejc Košnik , Lovre Pavičić

We study the effect of interference on the lepton number violating~(LNV) and lepton number conserving~(LNC) three-body meson decays $M_1^{+}\to l_i^{+} l_j^{\pm}\pi^{\mp}$, that arise in a TeV scale Left Right Symmetric model~(LRSM) with…

High Energy Physics - Phenomenology · Physics 2021-11-16 Rohini M. Godbole , Siddharth P. Maharathy , Sanjoy Mandal , Manimala Mitra , Nita Sinha

Nuclear $\beta$ decays as well as the decay of the neutron are well-established low-energy probes of physics beyond the Standard Model (SM). In particular, with the axial-vector coupling of the nucleon $g_A$ determined from lattice QCD, the…

High Energy Physics - Phenomenology · Physics 2020-09-11 Andreas Crivellin , Martin Hoferichter

Neutrinoless double beta decay ($0\nu\beta\beta$) and charged lepton flavor violation (cLFV) experiments provide promising avenues to probe new physics contributions from extended neutrino sectors in beyond Standard Model (BSM) scenarios.…

High Energy Physics - Phenomenology · Physics 2026-02-03 Pratik Adarsh , Rajrupa Banerjee , Purushottam Sahu , Utkarsh Patel , Sudhanwa Patra

We analyze the sensitivity of next-generation tonne-scale neutrinoless double $\beta$-decay ($0\nu\beta\beta$) experiments and searches for same-sign di-electrons plus jets at the Large Hadron Collider to TeV scale lepton number violating…

High Energy Physics - Phenomenology · Physics 2016-05-11 Tao Peng , Michael J. Ramsey-Musolf , Peter Winslow

We argue that a detailed analysis of semileptonic decays can test the possibility of a massive neutrino. The key observable, related to the forward-backward asymmetry, is exactly zero for a massless neutrino but becomes non-zero if the…

High Energy Physics - Phenomenology · Physics 2026-03-17 Damir Bečirević , Claire Chevallier , Svjetlana Faifer , Nejc Košnik , Lovre Pavičić

The effective interactions which violate a lepton flavor accompanied with neutrinos (nLFV) are considered. Such a new physics effect is expected to be measured in future neutrino oscillation experiments with long baseline. They are induced…

High Energy Physics - Phenomenology · Physics 2009-11-11 Toshihiko Ota , Joe Sato

In this work we investigate the implication of $K\to \pi \nu \bar{\nu}$ from the recent KOTO and NA62 measurements for generic neutrino interactions and the new physics scale in effective field theories. The interactions between quarks and…

High Energy Physics - Phenomenology · Physics 2020-04-10 Tong Li , Xiao-Dong Ma , Michael A. Schmidt

We analyze neutrinoless double beta decay ($0\nu\beta\beta$) within the framework of the Standard Model Effective Field Theory. Apart from the dimension-five Weinberg operator, the first contributions appear at dimension seven. We classify…

High Energy Physics - Phenomenology · Physics 2017-12-29 V. Cirigliano , W. Dekens , J. de Vries , M. L. Graesser , E. Mereghetti

The LEGEND collaboration is searching for neutrinoless double beta ($0\nu\beta\beta$) decay by operating high-purity germanium detectors enriched in $^{76}$Ge in a low-background liquid argon environment. Building on key technological…

High Energy Physics - Experiment · Physics 2025-10-01 H. Acharya , N. Ackermann , M. Agostini , A. Alexander , C. Andreoiu , G. R. Araujo , F. T. Avignone , M. Babicz , W. Bae , A. Bakalyarov , M. Balata , A. S. Barabash , P. S. Barbeau , C. J. Barton , L. Baudis , C. Bauer , E. Bernieri , L. Bezrukov , K. H. Bhimani , V. Biancacci , E. Blalock , S. J. Borden , G. Borghi , F. Borra , B. Bos , A. Boston , V. Bothe , R. Bouabid , R. Brugnera , N. Burlac , M. Busch , S. Calgaro , L. Canonica , S. Capra , M. Carminati , R. M. D. Carney , C. Cattadori , R. Cesarano , Y. -D. Chan , J. R. Chapman , A. Chernogorov , P. -J. Chiu , C. D. Christofferson , M. L. Clark , A. I. Colon-Rivera , T. Comellato , V. D'Andrea , R. Deckert , J. A. Detwiler , A. Di Giacinto , N. Di Marco , T. Dixon , K. -M. Dong , A. Drobizhev , G. Duran , Yu. Efremenko , S. R. Elliott , C. H. J. Emmanuel , E. Engelhardt , E. Esch , M. T. Febbraro , F. Ferella , D. E. Fields , C. Fiorini , M. Fomina , N. Fuad , R. Gala , A. Galindo-Uribarri , A. Gangapshev , A. Garfagnini , S. Gazzana , A. Geraci , L. Gessler , C. Ghiano , A. Gieb , S. Giri , M. Gold , C. Gooch , G. Grünauer , M. P. Green , J. Gruszko , I. Guinn , V. E. Guiseppe , V. Gurentsov , Y. Gurov , K. Gusev , B. Hackett , F. Hagemann , M. Haranczyk , F. Henkes , R. Henning , J. Herrera , D. Hervas Aguilar , J. Hinton , R. Hodák , H. F. R. Hoffmann , M. A. Howe , M. Huber , M. Hult , A. Ianni , K. Jędrzejczak , J. Jochum , R. W. L. Jones , D. S. Judson , M. Junker , J. Kaizer , V. Kazalov , M. F. Kidd , T. Kihm , K. Kilgus , A. Klimenko , K. T. Knöpfle , I. Kochanek , O. Kochetov , I. Kontul , L. L. Kormos , V. N. Kornoukhov , P. Krause , H. Krishnamoorthy , V. V. Kuzminov , K. Lang , M. Laubenstein , N. N. P. N. Lay , E. León , A. Leder , B. Lehnert , A. Leonhardt , N. Levashko , L. Y. Li , A. Li , Y. -R. Lin , M. Lindner , I. Lippi , A. Love , A. Lubashevskiy , B. Lubsandorzhiev , N. Lusardi , C. Macolino , B. Majorovits , F. Mamedov , L. Manzanillas , G. G. Marshall , R. D. Martin , E. L. Martin , R. Massarczyk , A. Mazumdar , G. McDowell , D. -M. Mei , S. P. Meireles , M. Menzel , S. Mertens , E. Miller , I. Mirza , M. Misiaszek , M. Morella , B. Morgan , T. Mroz , D. Muenstermann , C. J. Nave , I. Nemchenok , M. Neuberger , N. O'Briant , F. Paissan , L. Papp , L. S. Paudel , K. Pelczar , L. Pertoldi , W. Pettus , F. Piastra , M. Pichotta , P. Piseri , A. W. P. Poon , P. P. Povinec , M. Pruckner , A. Pullia , W. S. Quinn , D. C. Radford , Y. A. Ramachers , A. Razeto , M. Redchuk , A. L. Reine , S. Riboldi , K. Rielage , C. Romo-Luque , N. Rossi , S. Rozov , T. J. Ruland , N. Rumyantseva , J. Runge , R. Saakyan , S. Sailer , G. Salamanna , F. Salamida , G. Saleh , V. Sandukovsky , C. Savarese , S. Schönert , A. -K. Schütz , D. C. Schaper , L. Schlüter , S. J. Schleich , O. Schulz , M. Schwarz , B. Schwingenheuer , C. Seibt , O. Selivanenko , G. Senatore , A. Serafini , K. Shakhov , E. Shevchik , M. Shirchenko , Y. Shitov , H. Simgen , F. Šimkovic , S. Simonaitis-Boyd , M. Skorokhvatov , M. Slavíčková , A. Smolnikov , J. A. Solomon , G. Song , A. C. Sousa , A. R. Sreekala , L. Steinhart , I. Štekl , T. Sterr , M. Stommel , S. A. Sullivan , R. R. Sumathi , K. Szczepaniec , L. Taffarello , D. Tagnani , D. J. Tedeschi , T. N. Thorpe , V. Tretyak , M. Turqueti , E. E. Van Nieuwenhuizen , L. J. Varriano , S. Vasilyev , A. Veresnikova , C. Vignoli , C. Vogl , K. von Sturm , A. Warren , D. Waters , S. L. Watkins , C. Wiesinger , J. F. Wilkerson , M. Willers , C. Wiseman , M. Wojcik , D. Xu , W. Xu , E. Yakushev , T. Ye , C. -H. Yu , V. Yumatov , D. Zinatulina , K. Zuber , G. Zuzel

Neutrinoless double beta ($0\nu\beta\beta$) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for $0\nu\beta\beta$ decay. Combining the…

High Energy Physics - Phenomenology · Physics 2024-04-18 Shao-Long Chen , Yu-Qi Xiao

We consider the role of precision measurements of beta decays and light meson semi-leptonic decays in probing physics beyond the Standard Model in the LHC era. We describe all low-energy charged-current processes within and beyond the…

High Energy Physics - Phenomenology · Physics 2015-06-15 Vincenzo Cirigliano , Susan Gardner , Barry Holstein

In this talk I review the New Physics reach of semileptonic beta decay experiments, and their interplay with LHC searches. Assuming the new particles are heavy enough we can use an Effective Field Theory approach to analyze the LHC…

High Energy Physics - Phenomenology · Physics 2015-06-11 Martín González-Alonso

Several parity violating left-right asymmetries in M\o ller electron-electron and muon-muon scattering are considered in the context of the electroweak standard model at tree level in fixed target and collider experiences. We show that in…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. C. Montero , V. Pleitez , M. C. Rodriguez

Leptogenesis in left-right symmetric theories is studied. The usual see-saw mechanism is modified by the presence of a left-handed Higgs triplet. A simple connection between the properties of the light left-handed and heavy right-handed…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Rodejohann

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…

High Energy Physics - Phenomenology · Physics 2019-08-26 Julien Alcaide , Shankha Banerjee , Mikael Chala , Arsenii Titov

In this work we study the current bounds from the CE{\nu}NS process and meson invisible decays on generic neutrino interactions with sterile neutrinos in effective field theories. The interactions between quarks and left-handed SM neutrinos…

High Energy Physics - Phenomenology · Physics 2020-07-29 Tong Li , Xiao-Dong Ma , Michael A. Schmidt

Charged currents are probed in low-energy precision $\beta$-decay experiments and at high-energy colliders, both of which aim to measure or constrain signals of beyond-the-Standard-Model physics. In light of future $\beta$-decay and LHC…

High Energy Physics - Phenomenology · Physics 2021-12-07 Wouter Dekens , Jordy de Vries , Tom Tong

The left-right symmetric model may present evidence of new physics at the era of the Large Hadron Collider (LHC). We use its framework to investigate the lepton number violating process $pp \to e^\pm e^\pm jj+X$ at the $\unit[14]{TeV}$ LHC.…

High Energy Physics - Phenomenology · Physics 2021-01-12 Aviad Roitgrund , Gad Eilam