Home << 1 2 3 4 5 6 >>
List View
 | 
Citations
 | 
Details
   web
Records
Author Escribano, P.; Martin Lozano, V.; Norero, S.; Vicente, A.
Title Exploring dimuon Higgs decay in an extended Scotogenic model Type Journal Article
Year 2025 Publication (up) Journal of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume 09 Issue 9 Pages 136 - 46pp
Keywords Anomalous Higgs Couplings; Lepton Flavour Violation (charged); Higgs Properties
Abstract We investigate the dimuon Higgs decay h -> mu+mu- in the context of an extended Scotogenic model. The model introduces a singlet complex scalar in addition to the standard Scotogenic scalar doublet and singlet fermions, charged under a dark & Zopf;2 symmetry. By exploring the one-loop contributions, we show that the model allows for sizable deviations in the Higgs dimuon decay rate, quantified by the quotient R μμ= Br(h -> mu+mu-)/Br(h -> mu+mu-)SM. Crucially, these deviations comply with experimental limits, including those on Br(mu+ -> e+gamma) and Br(h -> gamma gamma). Such deviations can be tested and constrained by future precision measurements at the LHC.
Address [Escribano, Pablo; Lozano, Victor Martin; Vicente, Avelino] Univ Valencia, Inst Fis Corpuscular, CSIC, Paterna 46980, Spain, Email: pablo.escribano@ific.uv.es;
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001573949400009 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6854
Permanent link to this record
 
 
Author Leite, J.; Perez-Soler, J.; Vicente, A.
Title Scotogenic mechanism from an extended SU(2)1x SU(2)2x U(1)Y electroweak symmetry Type Journal Article
Year 2025 Publication (up) Journal of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume 10 Issue 10 Pages 129 - 30pp
Keywords Lepton Flavour Violation (charged); Models for Dark Matter; New Gauge Interactions
Abstract We propose an extension of the electroweak sector of the Standard Model in which the gauge group SU(2)L is promoted to SU(2)1x SU(2)2. This framework naturally includes a viable dark matter candidate and generates neutrino masses radiatively & agrave; la Scotogenic. Our scenario can be viewed as an ultraviolet extension of the Scotogenic mechanism, addressing some of its shortcomings. The resulting phenomenology may be probed through a range of experimental signatures, from precision electroweak measurements to searches for lepton flavor violation.
Address [Leite, Julio; Perez-Soler, Javier; Vicente, Avelino] Univ Valencia, Inst Fis Corpuscular, CSIC, E-46980 Paterna, Spain, Email: julio.leite@ific.uv.es;
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001596601900005 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 6895
Permanent link to this record
 
 
Author Herrero-Brocal, A.; Vicente, A.
Title Minimal Majorana neutrino mass models Type Journal Article
Year 2026 Publication (up) Journal of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume 01 Issue 1 Pages 035 - 25pp
Keywords Lepton Flavour Violation (charged); Neutrino Mixing; Sterile or Heavy Neutrinos; Baryon/Lepton Number Violation
Abstract We present an extension of the Casas-Ibarra parametrization that applies to all possible Majorana neutrino mass models. This framework allows us to systematically identify minimal models, defined as those with the smallest number of free parameters. We further analyze the phenomenologically relevant combination of the Yukawa matrix, y dagger y, and show that in certain scenarios it exhibits an unexpected reduction in the number of free parameters, depending on just one real degree of freedom. Finally, the application of our results is illustrated in specific models, which can be tested or falsified due to their definite experimental predictions in heavy neutrino and charged lepton flavor violating decays.
Address [Herrero-Brocal, Antonio; Vicente, Avelino] CSIC Univ Valencia, Inst Fis Corpuscular, Parc Cientif Paterna,C Catedrat Jose Beltran 2, E-46980 Paterna, Valencia, Spain, Email: antonio.herrero@ific.uv.es;
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001655049000012 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 7022
Permanent link to this record
 
 
Author Fernandez Navarro, M.; King, S.F.; Vicente, A.
Title Natural neutrino mass hierarchy in a theory of gauge flavour deconstruction Type Journal Article
Year 2026 Publication (up) Journal of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume 02 Issue 2 Pages 046 - 27pp
Keywords Neutrino Mixing; Theories of Flavour
Abstract We show how a natural neutrino mass hierarchy with large lepton mixing angles may be achieved in a theory of gauge flavour deconstruction. Hitherto it has been shown that neutrino anarchy may result from such theories, but here we show that this need not necessarily be the case. In particular we consider the minimal tri-hypercharge theory, and show that the decomposition of the family hypercharges into the corresponding B – L gauge groups, together with the charged lepton mass hierarchy, implies the sequential dominance conditions for a neutrino mass hierarchy, where lepton mixing originates from both the neutrino and charged lepton sectors. We present novel and model-independent sequential dominance results applicable to this case, but also useful more generally. We also show how natural quark mass and mixing are included in such a framework.
Address [Fernandez Navarro, Mario] Univ Glasgow, Sch Phys & Astron, Glasgow City G12 8QQ, Scotland, Email: Mario.FernandezNavarro@glasgow.ac.uk;
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001680089400004 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 7044
Permanent link to this record
 
 
Author Hirsch, M.; Staub, F.; Vicente, A.
Title Enhancing l(i) -> 3l(j) with the Z(0)-penguin Type Journal Article
Year 2012 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 85 Issue 11 Pages 113013 - 5pp
Keywords
Abstract Lepton flavor violation has been observed in neutrino oscillations. For charged lepton flavor violation decays only upper limits are known, but sizable branching ratios are expected in many neutrino mass models. High-scale models, such as the classical supersymmetric seesaw, usually predict that decays l(i) -> 3l(j) are roughly a factor alpha smaller than the corresponding decays l(i) -> l(j)gamma. Here we demonstrate that the Z(0)-penguin diagram can give an enhancement for decays l(i) -> 3l(j) in many extensions of the minimal supersymmetric standard model (MSSM). We first discuss why the Z(0)-penguin is not dominant in the MSSM with seesaw and show that much larger contributions from the Z(0)-penguin are expected in general. We then demonstrate the effect numerically in two example models, namely, the supersymmetric inverse seesaw and R-parity violating supersymmetry.
Address [Hirsch, M.] Univ Valencia Edificio Inst Paterna, CSIC, AHEP Grp, Inst Fis Corpuscular, E-46071 Valencia, Spain, Email: mahirsch@ific.uv.es;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000305680800003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1075
Permanent link to this record
 
 
Author Peinado, E.; Vicente, A.
Title Neutrino masses from R-parity violation with a Z(3) symmetry Type Journal Article
Year 2012 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 86 Issue 9 Pages 093024 - 9pp
Keywords
Abstract We consider a supersymmetric model where the neutrino mass matrix arises from bilinear and trilinear R-parity violation, both restricted by a Z(3) flavor symmetry. Assuming flavor-blind soft supersymmetry breaking conditions, corrected at low energies due to running effects, we obtain a neutrino mass matrix in agreement with oscillation data. In particular, a large theta(13) angle can be easily accommodated. We also find a correlation between the reactor and atmospheric mixing angles. This leads in some scenarios to a clear deviation from theta(23) = pi/4. The lightest supersymmetric particle decay, dominated by the trilinear couplings, provides a direct way to test the model at colliders.
Address [Peinado, E.] Univ Valencia, Inst Fis Corpuscular CSIC, AHEP Grp, E-46071 Valencia, Spain, Email: epeinado@ific.uv.es;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000311538000002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1243
Permanent link to this record
 
 
Author Aristizabal Sierra, D.; Staub, F.; Vicente, A.
Title Shedding light on the b -> s anomalies with a dark sector Type Journal Article
Year 2015 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 92 Issue 1 Pages 015001 - 11pp
Keywords
Abstract The LHCb Collaboration has recently reported on some anomalies in b -> s transitions. In addition to discrepancies with the Standard Model (SM) predictions in some angular observables and branching ratios, an intriguing hint for lepton universality violation was found. Here we propose a simple model that extends the SM with a dark sector charged under an additional U(1) gauge symmetry. The spontaneous breaking of this symmetry gives rise to a massive Z' boson, which communicates the SM particles with a valid dark matter candidate, while solving the b -> s anomalies with contributions to the relevant observables.
Address [Sierra, D. Aristizabal; Vicente, Avelino] Univ Liege, Dept Astrophys Geophys & Oceanog, IFPA, B-4000 Liege 1, Belgium, Email: daristizabal@ulg.ac.be;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000357492700006 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2297
Permanent link to this record
 
 
Author Boucenna, S.M.; Valle, J.W.F.; Vicente, A.
Title Predicting charged lepton flavor violation from 3-3-1 gauge symmetry Type Journal Article
Year 2015 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 92 Issue 5 Pages 053001 - 7pp
Keywords
Abstract The simplest realization of the inverse seesaw mechanism in a SU(3)(C) circle times SU(3)(L) circle times U(1)(X) gauge theory offers striking flavor correlations between rare charged lepton flavor violating decays and the measured neutrino oscillations parameters. The predictions follow from the gauge structure itself without the need for any flavor symmetry. Such tight complementarity between charged lepton flavor violation and neutrino oscillations renders the scenario strictly testable.
Address [Boucenna, Sofiane M.; Valle, Jose W. F.; Vicente, Avelino] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain, Email: boucenna@lnf.infn.it;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000360885800002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2386
Permanent link to this record
 
 
Author Aristizabal Sierra, D.; Herrero-Garcia, J.; Restrepo, D.; Vicente, A.
Title Diboson anomaly: Heavy Higgs resonance and QCD vectorlike exotics Type Journal Article
Year 2016 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 93 Issue 1 Pages 015012 - 12pp
Keywords
Abstract The ATLAS Collaboration (and also CMS) has recently reported an excess over Standard Model expectations for gauge boson pair production in the invariant mass region 1.8-2.2 TeV. In light of these results, we argue that such a signal might be the first manifestation of the production and further decay of a heavy CP-even Higgs resulting from a type-I two Higgs doublet model. We demonstrate that in the presence of colored vectorlike fermions, its gluon fusion production cross section is strongly enhanced, with the enhancement depending on the color representation of the new fermion states. Our findings show that barring the color triplet case, any QCD “exotic” representation can fit the ATLAS result in fairly large portions of the parameter space. We have found that if the diboson excess is confirmed and this mechanism is indeed responsible for it, then the LHC Run-2 should find (i) a CP-odd scalar with mass below similar to 2.3 TeV, (ii) new colored states with masses below similar to 2 TeV, (iii) no statistically significant diboson events in the W(+/-)Z channel, (iv) events in the triboson channels W(+/-)W(-/+)Z and ZZZ with invariant mass amounting to the mass of the CP-odd scalar.
Address [Sierra, D. Aristizabal] Univ Liege, Dept AGO, IFPA, Bat B5, B-4000 Liege 1, Belgium, Email: daristizabal@ulg.ac.be;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1550-7998 ISBN Medium
Area Expedition Conference
Notes WOS:000368516100007 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2535
Permanent link to this record
 
 
Author Boucenna, S.M.; Morisi, S.; Vicente, A.
Title LHC diphoton resonance from gauge symmetry Type Journal Article
Year 2016 Publication (up) Physical Review D Abbreviated Journal Phys. Rev. D
Volume 93 Issue 11 Pages 115008 - 8pp
Keywords
Abstract Motivated by what is possibly the first sign of new physics seen at the LHC, the diphoton excess at 750 GeV in ATLAS and CMS, we present a model that provides naturally the necessary ingredients to explain the resonance. The simplest phenomenological explanation for the diphoton excess requires a new scalar state, X(750), as well as additional vectorlike (VL) fermions introduced in an ad-hoc way in order to enhance its decays into a pair of photons and/or increase its production cross section. We show that the necessary VL quarks and their couplings can emerge naturally from a complete framework based on the SU(3)(L) circle times U(1)(X) gauge symmetry.
Address [Boucenna, Sofiane M.] Ist Nazl Fis Nucl, Lab Nazl Frascati, CP 13, I-100044 Frascati, Italy, Email: boucenna@lnf.infn.it;
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:000377505700002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2717
Permanent link to this record