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CERN Document Server 38 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.53 segons. 
1.
CORFU2023: 23rd Hellenic School and Workshops on Elementary Particle Physics and Gravity (CORFU 2023) - CORFU2023   23 Apr - 1 Oct 2023  - Corfu, Greece  / Agathos, Michalis (ed.) (KICC/DAMTP - U Cambridge); Anagnostopoulos, Konstantinos (ed.) (NTU Athens); Aschieri, Paolo (ed.) (U. del Piemonte Orientale); Basilakos, Spyros (ed.) (National Observatory of Athens); Capozziello, Salvatore (ed.) (U Napoli); Cardoso, Vitor (ed.) (NBI - U Copenhagen, IST Lisbon); Chatzistavrakidis, Athanassios (ed.) (Bošković Institute); Di Valentino, Eleonora (ed.) (U Sheffield); Gnecchi, Alessandra (ed.) (INFN, Padova); Kalinowski, Jan (ed.) (Warsaw U.) et al.
2023 - Published in : PoS: CORFU2024 (2024)
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2.
Type-I Seesaw with eV-Scale Neutrinos / Branco, G.C. (Lisbon, CFTP) ; Penedo, J.T. (Lisbon, CFTP) ; Pereira, Pedro M.F. (Lisbon, CFTP) ; Rebelo, M.N. (Lisbon, CFTP ; CERN) ; Silva-Marcos, J.I. (Lisbon, CFTP)
We consider seesaw type-I models including at least one (mostly-)sterile neutrino with mass at the eV scale. Three distinct situations are found, where the presence of light extra neutrinos is naturally justified by an approximately conserved lepton number symmetry. [...]
arXiv:1912.05875.- 2020-07-23 - 43 p. - Published in : JHEP 2007 (2020) 164 Article from SCOAP3: PDF; Fulltext: PDF;
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3.
3HDM with ∆(27) symmetry and its phenomenological consequences / Kalinowski, J. (Warsaw U. ; CERN) ; Kotlarski, W. (Dresden, Tech. U. ; NCBJ, Warsaw) ; Rebelo, M.N. (Lisbon, CFTP) ; de Medeiros Varzielas, I. (Lisbon, CFTP)
We perform a comprehensive analysis of a version of the 3-Higgs doublet model whose scalar potential is invariant under a global $\Delta(27)$ discrete symmetry and where the three scalar doublets are chosen to transform as a triplet under this discrete group. For each of the known tree-level minima we study the mass spectra and use the oblique parameters $STU$ as well as perturbative unitarity to constrain the parameter space of the model. [...]
arXiv:2112.12699; CERN-TH-2021-182.- 2023-02-24 - 27 p. - Published in : JHEP 2302 (2023) 231 Fulltext: document - PDF; 2112.12699 - PDF;
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4.
A class of $S_3$-inspired Three-Higgs-Doublet Models with complex vacuum / Kunčinas, A. (Bergen U.) ; Ogreid, O.M. (HVL, Norway) ; Osland, P. (Bergen U.) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN)
In this paper we analyse in detail an $S_3$-symmetric three-Higgs-doublet model with a specific vacuum configuration. This analysis allows us to illustrate important features of models with several Higgs doublets, such as the possibility of having spontaneous CP violation. [...]
arXiv:2001.01994.- 2020-04-30 - 20 p. - Published in : Phys. Rev. D 101 (2020) 075052 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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5.
Leptonic Invariants, Neutrino Mass-Ordering and the Octant of $\theta_{23}$ / Branco, G.C. (Lisbon, IST ; CERN ; Lisbon, CFTP) ; Rebelo, M.N. (Lisbon, IST ; CERN ; Lisbon, CFTP) ; Silva-Marcos, J.I. (Lisbon, IST ; Lisbon, CFTP)
We point out that leptonic weak-basis invariants are an important tool for the study of the properties of lepton flavour models. In particular, we show that appropriately chosen invariants can give a clear indication of whether a particular lepton flavour model favours normal or inverted hierarchy for neutrino masses and what is the octant of $\theta_{23}$. [...]
arXiv:1705.07758; CERN-TH-2017-075.- 2017-11-06 - 10 p. - Published in : JHEP 11 (2017) 001 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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6.
Spontaneous symmetry breaking in three-Higgs-doublet $S_3$-symmetric models / Emmanuel-Costa, D. (Lisbon, CFTP ; Lisbon, IST) ; Ogreid, O.M. (U. Bergen (main)) ; Osland, P. (Bergen U.) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN)
The talk summarises work done by the authors consisting of a detailed study of the possible vacua in models with three Higgs doublets with $S_3$ symmetry and without explicit CP violation. Different vacua require special regions of the parameter space which were analysed in our work. [...]
CERN-TH-2017-070; arXiv:1703.08457.- 2017-07-27 - 11 p. - Published in : J. Phys.: Conf. Ser. 873 (2017) 012007 Fulltext from Publisher: PDF; Preprint: PDF;
In : 5th Symposium on Prospects in the Physics of Discrete Symmetries, Warsaw, Poland, 28 Nov - 3 Dec 2016, pp.012007
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7.
A Simple Method to detect spontaneous CP Violation in multi-Higgs models / Ogreid, O.M. (Unlisted, NO) ; Osland, P. (Bergen U.) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN)
For models with several Higgs doublets we present an alternative method to the one proposed by Branco, Gerard and Grimus, in 1984, to check whether or not CP is spontaneously violated in the Higgs potential. The previous method is powerful and rigorous. [...]
arXiv:1701.04768; CERN-TH-2017-008.- 2017-08-01 - 9 p. - Published in : JHEP 08 (2017) 005 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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8.
CERN Yellow Report Front Cover Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector / de Florian, D.
This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016 [...]
arXiv:1610.07922 ; CERN-2017-002-M ; CERN-2017-002 - Geneva : CERN, 2017. - 849 p. (CERN Yellow Reports: Monographs ; 2/2017)


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9.
What if the Masses of the First Two Quark Families are not Generated by the Standard Higgs? / Botella, F.J. (Valencia U. ; Valencia U., IFIC ; CERN) ; Branco, G.C. (Lisbon, CFTP ; Lisbon, IST ; CERN) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN) ; Silva-Marcos, J.I. (Lisbon, CFTP ; Lisbon, IST)
We point out that, in the context of the SM, $|V^2_{13}| + | V^2_{23}|$ is expected to be large, of order one. The fact that $|V^2_{13}| + |V^2_{23}| \approx 1.6 \times 10^{-3}$ motivates the introduction of a symmetry S which leads to $V_{CKM} ={1\>\!\!\!\mathrm{I}} $, with only the third generation of quarks acquiring mass. [...]
arXiv:1602.08011; CERN-TH-2016-039; CERN-TH-2016-039.- Geneva : CERN, 2016-12-29 - 6 p. - Published in : Phys. Rev. D 94 (2016) 115031 Fulltext: 10.1103_PhysRevD.94.115031 - PDF; arXiv:1602.08011 - PDF; External link: Preprint
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10.
Spontaneous symmetry breaking in the $S_3$-symmetric scalar sector / Emmanuel-Costa, D. (Lisbon, CFTP) ; Ogreid, O.M. (Bergen Coll. Higher Educ.) ; Osland, P. (Bergen U.) ; Rebelo, M.N. (Lisbon, CFTP ; CERN)
We present a detailed study of the vacua of the $S_3$-symmetric three-Higgs-doublet potential, specifying the region of parameters where these minimisation solutions occur. We work with a CP conserving scalar potential and analyse the possible real and complex vacua with emphasis on the cases in which the CP symmetry can be spontaneously broken. [...]
arXiv:1601.04654; CERN-TH-2016-013; CERN-TH-2016-013.- 2016-02-23 - 37 p.
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Erratum: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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CERN Document Server : 38 registres trobats   1 - 10següentfinal  anar al registre:
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