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3rd Symposium on Prospects in the Physics of Discrete Symmetries - DISCRETE 2012 3 - 7 Dec 2012 - Lisbon, Portugal / Branco, Gustavo C (ed.); Emmanuel-Costa, David (ed.); Gonzalez Felipe, Ricardo (ed.); Joaquim, Filipe R (ed.); Lavoura, L (ed.); Palomares-Ruiz, S (ed.); Rebelo, M Nesbitt (ed.); Romao, Jorge C (ed.); Silva, Jorge P (ed.); Silva-Marcos, J I (ed.)
2013 - Published in : J. Phys.: Conf. Ser. 447 (2013)

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Building the full Pontecorvo-Maki-Nakagawa-Sakata matrix from six independent Majorana-type phases / Branco, Gustavo C. (Lisbon, CFTP ; Lisbon, IST ; Valencia U. ; Valencia U., IFIC) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN ; Nordita)
In the framework of three light Majorana neutrinos, we show how to reconstruct, through the use of 3 x 3 unitarity, the full PMNS matrix from six independent Majorana-type phases. In particular, we express the strength of Dirac-type CP violation in terms of these Majorana-type phases by writing the area of the unitarity triangles in terms of these phases. [...]
arXiv:0809.2799; CERN-PH-TH-2008-183; NORDITA-2008-38; CERN-PH-TH-2008-183; NORDITA-2008-38.- Geneva : CERN, 2009 - 20 p. - Published in : Phys. Rev. D 79 (2009) 013001 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint

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Universal doublet-singlet Higgs couplings and phenomenology at the CERN Large Hadron Collider / Bhattacharyya, Gautam (Saha Inst.) ; Branco, Gustavo C. (Lisbon, CFTP ; Lisbon, IST ; CERN) ; Nandi, S. (Oklahoma State U. ; CERN)
We consider a minimal extension of the Standard Model where a real, gauge singlet scalar field is added to the standard spectrum. Introducing the Ansatz of universality of scalar couplings, we are led to a scenario which has a set of very distinctive and testable predictions: (i) the mixing between the SM Higgs and the new state is near maximal, (ii) the ratio of the two Higgs mass eigenstates is fixed ($\sim \sqrt{3}$), (iii) the decay modes of each of the two eigenstates are Standard Model like. [...]
arXiv:0712.2693; CERN-PH-TH-2007-264; OSU-HEP-07-07; SINP-TNP-07-33; CERN-PH-TH-2007-264; OSU-HEP-07-07; SINP-TNP-07-33.- 2008 - 5 p. - Published in : Phys. Rev. D 77 (2008) 117701 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint

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Four Zero Neutrino Yukawa Textures in the Minimal Seesaw Framework / Branco, Gustavo C. (Lisbon, CFTP ; Lisbon, IST) ; Emmanuel-Costa, David (Lisbon, CFTP ; Lisbon, IST) ; Rebelo, M.N. (Lisbon, CFTP ; Lisbon, IST ; CERN) ; Roy, Probir (Tata Inst. ; Saha Inst.)
We investigate, within the Type I seesaw framework, the physical implications of zero textures in the Yukawa couplings which generate the neutrino Dirac mass matrix $m_D$. It is shown that four is the maximal number of texture zeroes compatible with the observed leptonic mixing and the assumption that no neutrino mass vanishes. [...]
arXiv:0712.0774; CERN-PH-TH-2007-217; CERN-PH-TH-2007-217.- 2008 - 19 p. - Published in : Phys. Rev. D 77 (2008) 053011 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint

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CP-odd invariants in models with several Higgs doublets / Branco, Gustavo Castello (CERN) ; Rebelo, M N ; Silva-Marcos, Joaquim I (CERN)
We present CP-odd Higgs-basis invariants, which can be used to signal CP violation in a multi-Higgs system, written in an arbitrary Higgs basis. It is shown through specific examples how these CP-odd invariants can also be useful to determine the character of CP breaking (i.e. [...]
hep-ph/0502118; CERN-PH-TH-2005-018.- Geneva : CERN, 2005 - Published in : Phys. Lett. B 614 (2005) 187-194 Access to fulltext document: PDF; External link: hep-ph/0502118 PDF - CERN library copies

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CP Violation and New Physics / Branco, Gustavo Castello (CERN)
We describe some of the extensions of the SM, including models with spontaneous CP violation, where New Physics relevant for CP violation may arise. [...]
hep-ph/0307277. - 2003. - 8 p.
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Leptonic CP Violation and Neutrino Mass Models / Branco, Gustavo Castello (CERN) ; Rebelo, M N
We discuss leptonic mixing and CP violation at low and high energies, emphasizing possible connections between leptogenesis and CP violation at low energies, in the context of lepton flavour models. [...]
hep-ph/0411196. - 2004. - 26 p.
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The size of chi = arg (-Vts Vtb* Vcs* Vcb) and physics beyond the Standard Model / Aguilar-Saavedra, J A ; Botella, F J ; Branco, Gustavo Castello (CERN) ; Nebot, M
We analyse the allowed range of values of chi, both in the Standard Model and in models with New Physics, pointing out that a relatively large value of chi, e.g. [...]
hep-ph/0406151. - 2004.
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Weak non-leptonic decays of charmed hadrons in models with right-handed currents / Branco, Gustavo Castello (CERN) ; Hagiwara, T ; Mohapatra, Rabindra N ; Sidhu, D P
BNL-20580. - 1975. - 25 p.

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10.

$K_{L}-K_{S}$ mass difference and models of weak interactions / Branco, Gustavo Castello (CERN) ; Hagiwara, T ; Mohapatra, Rabindra N
COO-2232-84. - 1975. - 10 p.

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