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Neutrino mass models at $\mu $TRISTAN
/ Dev, P S Bhupal (Washington U., St. Louis) ; Heeck, Julian (Virginia U.) ; Thapa, Anil (Virginia U.)
We study the prospects of probing neutrino mass models at the newly proposed antimuon collider $\mu$TRISTAN, involving $\mu^+e^-$ scattering at $\sqrt{s}= 346$ GeV and $\mu^+\mu^+$ scattering at $\sqrt{s}= 2$ TeV. We show that $\mu$TRISTAN is uniquely sensitive to leptophilic neutral and doubly-charged scalars naturally occurring in various neutrino mass models, such as Zee, Zee-Babu, cocktail, and type-II seesaw models, over a wide range of mass and coupling values, well beyond the current experimental constraints. [...]
arXiv:2309.06463; CETUP-2023-005.-
2024 - 13 p.
- Published in : Eur. Phys. J. C 84 (2024) 148
Fulltext: 2309.06463 - PDF; Publication - PDF;
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2.
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Post-LS3 Experimental Options in ECN3
/ Ahdida, C. (CERN) ; Arduini, G. (CERN ; Arizona State U.) ; Balazs, K. (CERN) ; Bartosik, H. (CERN) ; Bernhard, J. (CERN) ; Boyarsky, A. (Leiden U. ; IP2I, Lyon) ; Brod, J. (Cincinnati U.) ; Brugger, M. (CERN) ; Calviani, M. (CERN) ; Ceccucci, A. (CERN) et al.
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Prévessin site. [...]
arXiv:2310.17726.
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113.
Fulltext
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3.
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Workshop on a future muon program at FNAL
/ Corrodi, S. (Argonne) ; Oksuzian, Y. (Argonne) ; Edmonds, A. (Boston U.) ; Miller, J. (Boston U.) ; Tran, H.N. (Boston U.) ; Bonventre, R. (LBL, Berkeley) ; Brown, D.N. (LBL, Berkeley) ; Méot, F. (Brookhaven) ; Singh, V. (UC, Berkeley) ; Kolomensky, Y. (LBNL, Berkeley) et al.
The Snowmass report on rare processes and precision measurements recommended Mu2e-II and a next generation muon facility at Fermilab (Advanced Muon Facility) as priorities for the frontier. [...]
arXiv:2309.05933 ; FERMILAB-CONF-23-464-PPD ; CALT-TH-2023-036.
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68.
Fermilab Library Server - Fulltext - Fulltext
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4.
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Post-LS3 Experimental Options in ECN3
/ Ahdida, Claudia (CERN) ; Arduini, Gianluigi (CERN) ; Balazs, Kincso (CERN) ; Bartosik, Hannes (CERN) ; Bernhard, Johannes (CERN) ; Boyarsky, Alexey (Leiden University (NL)) ; Brod, Joachim (University of Cincinnati) ; Brugger, Markus (CERN) ; Calviani, Marco (CERN) ; Ceccucci, Augusto (CERN) et al.
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Prévessin site. ECN3 currently hosts the NA62 experiment, with a physics programme devoted to rare kaon decays and searches of hidden particles approved until Long Shutdown 3 (LS3). [...]
CERN-PBC-REPORT-2023-003.-
Geneva : CERN, 2023 - 80.
Fulltext: PDF;
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5.
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Feebly-interacting particles: FIPs 2020 workshop report
/ Agrawal, Prateek (Oxford U., Theor. Phys.) ; Bauer, Martin (Durham U., IPPP) ; Beacham, James (Duke U.) ; Berlin, Asher (New York U., CCPP ; New York U.) ; Boyarsky, Alexey (Leiden U.) ; Cebrian, Susana (Zaragoza U.) ; Cid-Vidal, Xabier (Santiago de Compostela U.) ; d'Enterria, David (CERN) ; De Roeck, Albert (CERN) ; Drewes, Marco (Louvain U., CP3) et al.
With the establishment and maturation of the experimental programs searching for new physics with sizeable couplings at the LHC, there is an increasing interest in the broader particle and astrophysics community for exploring the physics of light and feebly-interacting particles as a paradigm complementary to a New Physics sector at the TeV scale and beyond. FIPs 2020 has been the first workshop fully dedicated to the physics of feebly-interacting particles and was held virtually from 31 August to 4 September 2020. [...]
arXiv:2102.12143.-
2021-11-19 - 246 p.
- Published in : Eur. Phys. J. C 81 (2021) 1015
Fulltext: 2102.12143 - PDF; document - PDF;
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6.
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Pati-Salam and lepton universality in B decays
/ Heeck, Julian (UC, Irvine) ; Teresi, Daniele (Pisa U. ; INFN, Pisa)
Recent hints for lepton-flavor non-universality in $B$-meson decays can be interpreted as hints for the existence of leptoquarks. We show that scalar leptoquarks unavoidably arise in grand unified theories, using the well-known Pati-Salam model as an example. [...]
arXiv:1905.05211.-
2019 - 6 p.
- Published in : (2019) , pp. 333-338
Fulltext: PDF;
In : 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.333-338
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7.
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A two-Higgs-doublet model facing experimental hints
/ Crivellin, Andreas (CERN) ; Heeck, Julian (Brussels U.) ; Stoffer, Peter (Bonn U., HISKP)
Physics beyond the Standard Model has so far eluded our experimental probes. Nevertheless, a number of interesting anomalies have accumulated that can be taken as hints towards new physics: BaBar, Belle, and LHCb have found deviations of approximately 3:8sigma in B -> Dtaunu and B -> D^*taunu; the anomalous magnetic moment of the muon differs by about 3sigma from the theoretic prediction; the branching ratio for tau -> mununu is about 2sigma above the Standard Model expectation; and CMS and ATLAS found hints for a non-zero decay rate of h -> mutau at 2.6sigma. [...]
2016 - 5 p.
- Published in : EPJ Web Conf. 118 (2016) 01014
Fulltext: PDF;
In : Workshop on Flavour changing and conserving processes 2015, Anacapri, Capri Island, Italy, 10 - 12 Sep 2015, pp.01014
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8.
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A White Paper on keV Sterile Neutrino Dark Matter
/ Drewes, M. (Munich, Tech. U.) ; Lasserre, T. (Munich, Tech. U.) ; Merle, A. (Munich, Max Planck Inst.) ; Mertens, S. (LBL, Berkeley ; KIT, Karlsruhe) ; Adhikari, R. (Jamia Millia Islamia) ; Agostini, M. (Gran Sasso) ; Ky, N.Anh (Hanoi, Inst. Phys. ; Vietnam Natl. U.) ; Araki, T. (Saitama U.) ; Archidiacono, M. (Aarhus U.) ; Bahr, M. (UC, Santa Barbara) et al.
We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and particle physics - in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. [...]
arXiv:1602.04816; FERMILAB-PUB-16-068-T.-
2017-01-13 - 239 p.
- Published in : JCAP 01 (2017) 025
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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9.
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10.
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Explaining the LHC flavour anomalies
/ Crivellin, Andreas (CERN) ; D'Ambrosio, Giancarlo (CERN) ; Heeck, Julian (Brussels U.)
The LHC observed deviations from the Standard Model (SM) in the flavour sector: LHCb found a $4.3\,\sigma$ discrepancy compared to the SM in $b\to s\mu\mu$ transitions and CMS reported a non-zero measurement of $h\to\mu\tau$ with a significance of $2.4\,\sigma$. Here we discuss how these deviations from the SM can be explained, focusing on two models with gauged $L_\mu-L_\tau$ symmetry. [...]
arXiv:1505.02026; CERN-PH-TH-2015-111.-
Geneva Geneva : CERN, CERN, 2015 - 6 p.
- Published in : , pp. 101-106
Fulltext: PDF; Preprint: PDF; fulltext: PDF; External link: Preprint
In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015, pp.101-106
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