Search Results - "Lavignac, S."

R-Parity-violating supersymmetry by Barbier, R., Bérat, C., Besançon, M., Chemtob, M., Deandrea, A., Dudas, E., Fayet, P., Lavignac, S., Moreau, G., Perez, E., Sirois, Y.

“…Theoretical and phenomenological implications of R-parity violation in supersymmetric theories are discussed in the context of particle physics and cosmology…”
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On non-universal goldstino couplings to matter by Dudas, E., von Gersdorff, G., Ghilencea, D.M., Lavignac, S., Parmentier, J.

“…Using the constrained superfields formalism to describe the interactions of a light goldstino to matter fields in supersymmetric models, we identify…”
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Neutrino oscillations: The rise of the PMNS paradigm by Giganti, C., Lavignac, S., Zito, M.

“…Since the discovery of neutrino oscillations, the experimental progress in the last two decades has been very fast, with the precision measurements of the…”
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String dualities in the presence of anomalous U(1) symmetries by Lalak, Zygmunt, Lavignac, Stéphane, Nilles, Hans Peter

“…Anomalous U(1) gauge symmetries in type II orientifold theories show some unexpected properties. In contrast to the heterotic case, the masses of the gauge…”
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Quark flavour conserving violations of the lepton number by Binétruy, P., Dudas, E., Lavignac, S., Savoy, C.A.

“…We study supersymmetric models of lepton and baryon number violation based on an abelian family gauge group. Due to possible lepton-Higgs mixing, the lepton…”
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Predictions from an anomalous U(1) model of Yukawa hierarchies by Irges, Nikolaos, Lavignac, Stéphane, Ramond, Pierre

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Large solar angle and see-saw mechanism: a bottom-up perspective by Lavignac, Stéphane, Masina, Isabella, Savoy, Carlos A.

“…In addition to the well established large atmospheric angle, a large solar angle is probably present in the leptonic sector. In the context of the see-saw and…”
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Yukawa textures with an anomalous horizontal abelian symmetry by Binétruy, Pierre, Lavignac, Stéphane, Ramond, Pierre

“…The observed hierarchy of quark and lepton masses and mixings may be obtained by adding an abelian family symmetry to the Minimal Supersymmetric Model and…”
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25 years of seesaw (summary of SEESAW'25) by Binétruy, P., Lavignac, S.

“…The seesaw mechanism for neutrino masses and its implications in particle physics and cosmology have been discussed actively over the last 25 years. The…”
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Quasi-degenerate neutrinos from an Abelian family symmetry by Binétruy, Pierre, Lavignac, Stéphane, Petcov, Serguey, Ramond, Pierre

“…We show that models with an Abelian family symmetry which accounts for the observed hierarchies of masses and mixings in the quark sector may also accommodate…”
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Target-space duality in heterotic and type I effective Lagrangians by Lalak, Zygmunt, Lavignac, Stéphane, Nilles, Hans Peter

“…We study the implications of target-space duality symmetries for low-energy effective actions of various four-dimensional string theories. In the heterotic…”
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Anomalous U(1) and low-energy physics: the power of D-flatness and holomorphy by Binétruy, Pierre, Irges, Nikolaos, Lavignac, Stéphane, Ramond, Pierre

“…In models with an anomalous abelian symmetry broken at a very large scale, we study which requirements to impose on the anomalous charges in order to prevent…”
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A guide to flat direction analysis in anomalous U(1) models by Irges, Nikolaos, St, éphane Lavignac

“…We suggest a systematic procedure to study D- and F-flat directions in a large class of models with an anomalous U(1). This class of models is characterized by…”
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Anomalous U(1) and low-energy physics: the power of D-flatness and holomorphy by Binetruy, P., Irges, N., Lavignac, S., Ramond, P.

“…In models with an anomalous abelian symmetry broken at a very large scale, we study which requirements to impose on the anomalous charges in order to prevent…”
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On non-universal Goldstino couplings to matter by Dudas, E, von Gersdorff, G, Ghilencea, D. M, Lavignac, S, Parmentier, J

“…Using the constrained superfields formalism to describe the interactions of a light goldstino to matter fields in supersymmetric models, we identify…”
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Leptogenesis in SO(10) models with a left-right symmetric seesaw mechanism by Abada, A, Hosteins, P, Josse-Michaux, F. -X, Lavignac, S

“…We study leptogenesis in supersymmetric SO(10) models with a left-right symmetric seesaw mechanism, including flavour effects and the contribution of the…”
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Update on fermion mass models with an anomalous horizontal U ( 1 ) symmetry by Chankowski, Piotr H., Kowalska, Kamila, Lavignac, Stéphane, Pokorski, Stefan

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Flavour Changing Neutral Currents and Inverted Sfermion Mass Hierarchy by Chankowski, P. H, Kowalska, K, Lavignac, S, Pokorski, S

“…We study the contraints on non-flavour-blind soft supersymmetry breaking terms coming from flavour and CP violating processes in the presence of hierarchical…”
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Diffractive SUSY particle production at the LHC by Boonekamp, M, Cammin, J, Lavignac, S, Peschanski, R, Royon, C

“…Phys.Rev.D73:115011,2006 We give detailed predictions for diffractive SUSY Higgs boson and top squark associated productions at the LHC via the exclusive…”
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Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry by Chankowski, P. H, Kowalska, K, Lavignac, S, Pokorski, S

“…Phys.Rev.D71:055004,2005 We reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a…”
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