Results 61 to 70 of about 77,712 (368)

Twistor Strings with Flavour [PDF]

, 2007
We explore the tree-level description of a class of N=2 UV-finite SYM theories with fundamental flavour within a topological B-model twistor string framework.
A. Bilal, A. Dabholkar, A. Konechny, A. Nasti, A. Neitzke, A. Neitzke, A.D. Popov, A.D. Popov, A.D. Popov, C. Hofman, C. Quigley, C. Sämann, C. Sämann, C. Vafa, C. Vafa, C.-H. Ahn, Constantinos Papageorgakis, D.-W. Chiou, D.E. Berenstein, E. Witten, E. Witten, F. Cachazo, F. Cachazo, G. Georgiou, G. Georgiou, H. Georgi, I. Brunner, I. Brunner, J. Park, J.M. Maldacena, James Bedford, K. Hori, Konstantinos Zoubos, L. Anguelova, L. Dolan, L.J. Dixon, L.J. Dixon, L.J. Mason, M. Abou-Zeid, M. Aganagic, M. Henningson, M. Mariño, M. Vonk, M. Wolf, M.E. Peskin, N. Berkovits, N. Nekrasov, N.E.J. Bjerrum-Bohr, O. Aharony, O. Lechtenfeld, P. Gao, P.A. Grassi, R. Boels, R. Boels, R. Ricci, R. Roiban, R.L. Mkrtchyan, S. Gukov, S. Kovacs, S. Sinha, S.D. Badger, S.H. Katz, S.J. Gates, T. Tokunaga, T.J. Hollowood, T.J. Hollowood, V.V. Khoze, W. Siegel, W. Siegel, W. Siegel, Z. Guralnik, Z. Komargodski   +71 more
core   +3 more sources

Adding flavour to the S-matrix bootstrap [PDF]

Journal of High Energy Physics, 2018
A bstractWe explore the S-matrices of gapped, unitary, Lorentz invariant quantum field theories with a global O(N) symmetry in 1+1 dimensions. We extremize various cubic and quartic couplings in the two-to-two scattering amplitudes of vector particles ...
Lucía Córdova, P. Vieira
semanticscholar   +1 more source

Microscopic Dirac Spectrum in a 2d Gauge Theory with Zero Chiral Condensate

, 2013
Fermionic theories with a vanishing chiral condensate (in the chiral limit) have recently attracted considerable interest; in particular variants of multi-flavour QCD are candidates for this behaviour.
Bietenholz, Wolfgang, Hip, Ivan, Landa-Marbán, David   +2 more
core   +1 more source

Predicting the Sparticle Spectrum from GUTs via SUSY Threshold Corrections with SusyTC [PDF]

, 2015
Grand Unified Theories (GUTs) can feature predictions for the ratios of quark and lepton Yukawa couplings at high energy, which can be tested with the increasingly precise results for the fermion masses, given at low energies.
Antusch, Stefan, Sluka, Constantin
core   +2 more sources

Exotic particles below the TeV from low scale flavour theories [PDF]

, 2010
A flavour gauge theory is observable only if the symmetry is broken at relatively low energies. The intrinsic parity-violation of the fermion representations in a flavour theory describing quark, lepton and higgsino masses and mixings generically ...
C. Savoy, Marc Thormeier
semanticscholar   +1 more source

Signals of Supersymmetric Flavour Models in B Physics [PDF]

, 2001
If the mechanism of Supersymmetry breaking is not flavour blind, some flavour symmetry is likely to be needed to prevent excessive flavour changing neutral current effects.
A. Abashian, A. Ali, A. Ali, A. Brignole, A. Masiero, A. Masiero, A. Pomarol, A. Romanino, A.J. Buras, A.J. Buras, A.J. Buras, A.J. Buras, A.L. Kagan, B. Aubert, C. Jarlskog, C. Jarlskog, C.R. Allton, C.R. Allton, D. Becirevic, D.A. Demir, D.E. Groom, F. Abe, F. Gabbiani, F. Gabbiani, G. C. Branco, G. Eyal, G. Eyal, H. Leutwyler, J.A. Bagger, J.P. Silva, J.S. Hagelin, K.S. Babu, L. Silvestrini, L. Wolfenstein, L.J. Hall, M. Brhlik, M. Brhlik, M. Ciuchini, M. Ciuchini, M. Ciuchini, M. Ciuchini, M. Piai, R. Barbieri, R. Barbieri, R. Barbieri, R. Barbieri, R. Barbieri, R. Barbieri, R. Barbieri, S. Abachi, S. Abel, S. Bertolini, S. Khalil, T. Affolder, T. Hurth, V. Gimenez, Z. Berezhiani   +56 more
core   +2 more sources

Theory Perspective on Flavour

Journal of Physics: Conference Series, 2015
An overview of the flavour problem is presented, with emphasis on the theoretical efforts to find a satisfactory description of fermion masses and mixing angles.
openaire   +2 more sources

SPONTANEOUS CP IN A SUSY THEORY OF FLAVOUR

String Phenomenology 2003, 2004
We present a model based on an SU(3) family symmetry providing a full description of quark and lepton masses and mixing angles. CP is spontaneously broken in the flavour sector reproducing the observed results of the Jarlskog invariant in the CKM mixing matrix.
Vives, O, Ross, G, Velasco-Sevilla, L
openaire   +3 more sources

Renormalization of lattice gauge theories with massless Ginsparg Wilson fermions

, 1999
Using functional techniques, we prove, to all orders of perturbation theory, that lattice vector gauge theories with Ginsparg Wilson fermions are renormalizable. For two or more massless fermions, they satisfy a flavour mixing axial vector Ward identity.
Bietenholz, Ginsparg, H.J. Rothe, Hasenfratz, Hernández, Lowenstein, Lowenstein, Lüscher, Lüscher, Lüscher, Neuberger, Nielsen, Reisz, Reisz, Reisz, Rothe, T. Reisz   +16 more
core   +1 more source

Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta) [PDF]

, 2008
Higgs singlet superfields are usually present in most extensions of the Minimal Supersymmetric Standard Model (MSSM) that address the mu-problem, such as the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and the Minimal Nonminimal Supersymmetric ...
Apostolos Pilaftsis, C. S. Huang, R. Dermisek, Robert N. Hodgkinson   +3 more
core   +3 more sources