Leptogenesis in the exceptional supersymmetric standard model: flavour dependent lepton asymmetries

We calculate flavour dependent lepton asymmetries within the E6 inspired Supersymmetric Standard Model (E6SSM), which has an extra U(1)N symmetry. In this model, the right-handed neutrino doesn't participate in gauge interactions, allowing it to be used for both the see-saw mechanism and leptogenesis. Extra Higgs, leptons and leptoquarks predicted by the E6SSM contribute to the ordinary lepton CP asymmetries induced by the decays of the lightest right-handed neutrino (and sneutrino) and give rise to a set of extra decay asymmetries. We find that the CP asymmetries can be relatively large, even when the lightest right-handed neutrino is as light as 106 GeV.

[1]  B. Pontecorvo,et al.  Inverse beta processes and nonconservation of lepton charge , 1957 .

[2]  S. Weinberg.  Cosmological Production of Baryons , 1979 .

[3]  Gauge Unification In Six Dimensions , 2001, hep-ph/0108021.

[4]  G. Lazarides,et al.  Origin of matter in the inflationary cosmology , 1991 .

[5]  P. Minkowski.  μ→eγ at a rate of one out of 109 muon decays? , 1977 .

[6]  Scott D. Thomas,et al.  Baryogenesis from flat directions of the supersymmetric standard model , 1995, hep-ph/9507453.

[7]  W. Buchmüller,et al.  CP asymmetry in Majorana neutrino decays , 1998 .

[8]  M. Raidal,et al.  Soft Leptogenesis , 2003, hep-ph/0308031.

[9]  F. Wilczek,et al.  Matter-antimatter accounting, thermodynamics, and black-hole radiation , 1979 .

[10]  Andrej Dmitrievich Sakharov,et al.  SPECIAL ISSUE: Violation of CP in variance, C asymmetry, and baryon asymmetry of the universe , 1991 .

[11]  J. Hewett,et al.  Signatures of long-lived gluinos in split supersymmetry , 2004, hep-ph/0408248.

[12]  Big-bang nucleosynthesis with unstable gravitino and upper bound on the reheating temperature , 2005, hep-ph/0507245.

[13]  L. Hall,et al.  Gauge unification in higher dimensions , 2001, hep-ph/0103125.

[14]  W. Scott,et al.  A REDETERMINATION OF THE NEUTRINO MASS-SQUARED DIFFERENCE IN TRI-MAXIMAL MIXING WITH TERRESTRIAL MATTER EFFECTS , 1999, hep-ph/9904297.

[15]  V. Kuzmin,et al.  On the Anomalous Electroweak Baryon Number Nonconservation in the Early Universe , 1985 .

[16]  SU(5) Grand Unification in Extra Dimensions and Proton Decay , 2001, hep-ph/0102301.

[17]  M. Plümacher.  Baryogenesis and lepton number violation , 1996, hep-ph/9604229.

[18]  A. Anisimov,et al.  The CP-asymmetry in resonant leptogenesis , 2005, hep-ph/0511248.

[19]  S. King,et al.  Minimal E_6 Supersymmetric Standard Model , 2007, 0708.1451.

[20]  W. Scott,et al.  Symmetries and generalisations of tri-bimaximal neutrino mixing , 2002, hep-ph/0203209.

[21]  Leptogenesis in unified theories with Type II see-saw , 2005, hep-ph/0507333.

[22]  Global analysis of three-flavor neutrino masses and mixings , 2005, hep-ph/0506083.

[23]  Baryogenesis through leptogenesis , 1999, hep-ph/9911315.

[24]  Leptogenesis in left–right symmetric theories , 2001, hep-ph/0104228.

[25]  Y. Kawamura.  Triplet-Doublet Splitting, Proton Stability and an Extra Dimension. , 2000, hep-ph/0012125.

[26]  RECENT PROGRESS IN BARYOGENESIS , 1999, hep-ph/9901362.

[27]  Ericka Stricklin-Parker,et al.  Ann , 2005 .

[28]  P. H. Cox,et al.  Net baryon number and CP nonconservation with unified fields , 1980 .

[29]  S. Barr,et al.  Magnitude of the cosmological baryon asymmetry , 1979 .

[30]  M. Lindner,et al.  Leptogenesis with dirac neutrinos , 1999, Physical review letters.

[31]  N. K. Pak,et al.  Dirac leptogenesis and anomalous U(1) , 2004 .

[32]  O. Vives.  Flavoured leptogenesis: A successful thermal leptogenesis withN1mass below 108GeV , 2005, Journal of Physics: Conference Series.

[33]  S. King,et al.  Flavour-dependent leptogenesis with sequential dominance , 2006, hep-ph/0609038.

[34]  M. Yoshimura.  Origin of cosmological baryon asymmetry , 1979 .

[35]  U. Sarkar,et al.  Supersymmetric Model of Neutrino Mass and Leptogenesis with String-Scale Unification , 2001, hep-ph/0105278.

[36]  Soft leptogenesis in the inverse seesaw model , 2006, hep-ph/0611311.

[37]  B. Pontecorvo.  Neutrino Experiments and the Problem of Conservation of Leptonic Charge , 1967 .

[38]  Limits on neutrino oscillations from the CHOOZ experiment , 1999, hep-ex/9907037.

[39]  Jonathan L. Feng,et al.  Supergravity with a gravitino lightest supersymmetric particle , 2004 .

[40]  A. Riotto,et al.  On the impact of flavour oscillations in leptogenesis , 2006, hep-ph/0611357.

[41]  M. Raidal,et al.  Efficiency and maximal CP-asymmetry of scalar triplet leptogenesis , 2005, hep-ph/0510008.

[42]  U. Sarkar,et al.  Neutrino masses and leptogenesis with heavy Higgs triplets , 1998, hep-ph/9802445.

[43]  Haas,et al.  Search for low-Z nuclei containing massive stable particles. , 1990, Physical review. D, Particles and fields.

[44]  G. Raffelt,et al.  Quantum Zeno effect and the impact of flavour in leptogenesis , 2006, hep-ph/0611337.

[45]  Z. Xing,et al.  Neutrino mixing and leptogenesis in type-II seesaw scenarios with left-right symmetry , 2007, 0704.3838.

[46]  N. Krasnikov,et al.  Universal CP-noninvariant superweak interaction and bayron asymmetry of the universe , 1978 .

[47]  S. Moretti,et al.  Spectrum of Higgs particles in the ESSM , 2006 .

[48]  M. Spiro,et al.  Experimental particle physics without accelerators , 1987 .

[49]  A. Hebecker,et al.  A Minimal S^1/(Z_2 x Z_2') Orbifold GUT , 2001, hep-ph/0106166.

[50]  Edward J. Wollack,et al.  FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE * OBSERVATIONS: COSMOLOGICAL INTERPRETATION , 2008, 0803.0547.

[51]  Mu-Chun Chen,et al.  Lepton flavor violating decays and soft leptogenesis in a supersymmetric SO(10) model , 2004, hep-ph/0409096.

[52]  M. Fukugita,et al.  Baryogenesis without grand unification , 1986 .

[53]  Z. Maki,et al.  Remarks on the unified model of elementary particles , 1962 .

[54]  Electroweak baryon number non-conservation in the early Universe and in high-energy collisions , 1996, hep-ph/9603208.

[55]  Edward J. Wollack,et al.  Three Year Wilkinson Microwave Anistropy Probe (WMAP) Observations: Polarization Analysis , 2006, astro-ph/0603450.

[56]  W. G. Scott,et al.  Tri-bimaximal mixing and the neutrino oscillation data , 2002 .

[57]  A. Simone,et al.  On resonant leptogenesis , 2007, 0705.2183.

[58]  M. Yoshimura.  Unified gauge theories and the baryon number of the universe , 1978 .

[59]  Renormalization of the neutrino mass operator , 1993, hep-ph/9309223.

[60]  B. Pontecorvo,et al.  Mesonium and Antimesonium , 1957 .

[61]  J. Ellis,et al.  Cosmological gravitino regeneration and decay , 1984 .

[62]  Leptogenesis for pedestrians , 2004, hep-ph/0401240.

[63]  A. Pilaftsis.  Resonant tau leptogenesis with observable lepton number violation. , 2004, Physical review letters.

[64]  S. Moretti,et al.  Exceptional supersymmetric standard model , 2005, hep-ph/0511256.

[65]  Cosmological constraints on the gravitino LSP scenario with a sneutrino NLSP , 2006, hep-ph/0609246.

[66]  A. Pilaftsis,et al.  Resonant Leptogenesis , 2003, hep-ph/0309342.

[67]  S. West.  NEUTRINO MASSES AND TeV SCALE RESONANT LEPTOGENESIS FROM SUPERSYMMETRY BREAKING , 2006 .

[68]  S. King,et al.  Exceptional supersymmetric standard models with non-abelian discrete family symmetry , 2008 .

[69]  S. Moretti,et al.  Theory and phenomenology of an exceptional supersymmetric standard model , 2005, hep-ph/0510419.

[70]  A. Dedes,et al.  The Minimal Phantom Sector of the Standard Model: Higgs Phenomenology and Dirac Leptogenesis , 2006 .

[71]  P. Smith.  Terrestrial searches for new stable particles , 1988 .

[72]  M. Losada,et al.  Flavour issues in leptogenesis , 2006, hep-ph/0601083.

[73]  S. Weinberg,et al.  Mechanisms for cosmological baryon production , 1979 .

[74]  Neutrino masses, mixing and leptogenesis in a two higgs doublet model for the third generation , 2005, hep-ph/0502234.

[75]  I. M. Soboĺ,et al.  Nonequilibrium cosmological nucleosynthesis of light elements: Calculations by the Monte Carlo method , 1993 .

[76]  M. Frigerio,et al.  Right-handed sector leptogenesis , 2006, hep-ph/0603123.

[77]  Leptogenesis with four gauge singlets , 2003, hep-ph/0306180.

[78]  U. Michigan,et al.  SO(10) unified models and soft leptogenesis , 2007, hep-ph/0702039.

[79]  Big-Bang nucleosynthesis and hadronic decay of long-lived massive particles , 2004, astro-ph/0408426.

[80]  Electroweak-scale resonant leptogenesis , 2005, hep-ph/0506107.

[81]  G. Senjanovic,et al.  Neutrino Mass and Spontaneous Parity Nonconservation , 1980 .

[82]  T. Yanagida,et al.  Horizontal Symmetry and Masses of Neutrinos , 1980 .

[83]  U. Sarkar,et al.  Supersymmetric triplet Higgs model of neutrino masses and leptogenesis , 2000, hep-ph/0011192.

[84]  Towards a complete theory of thermal leptogenesis in the SM and MSSM , 2003, hep-ph/0310123.

[85]  G. Senjanovic,et al.  Consequences of Triplet Seesaw for Leptogenesis , 2003, hep-ph/0307237.

[86]  M. Gell-Mann,et al.  Complex spinors and unified theories , 2013, 1306.4669.

[87]  U. Sarkar,et al.  Low-Energy Thermal Leptogenesis in an Extended NMSSM Model , 2006, hep-ph/0611257.

[88]  S. King.  Atmospheric and solar neutrinos with a heavy singlet , 1998, hep-ph/9806440.

[89]  L. Hall,et al.  SO(10) unified theories in six-dimensions , 2001, hep-ph/0108071.

[90]  M. Luty,et al.  Baryogenesis via leptogenesis. , 1992, Physical review. D, Particles and fields.

[91]  M. Plümacher.  Baryon Asymmetry, Neutrino Mixing and Supersymmetric SO(10) Unification , 1998 .

[92]  Y. Nir,et al.  The importance of flavor in leptogenesis , 2006, hep-ph/0601084.

[93]  K. Hamaguchi,et al.  Leptogenesis in inflaton decay , 1999, hep-ph/9906366.

[94]  Allowable low-energy E6 subgroups from leptogenesis , 2000, hep-ph/0011197.

[95]  V. Cirigliano,et al.  Quantum resonant leptogenesis and minimal lepton flavour violation , 2007, 0711.0778.

[96]  L. Wolfenstein.  Oscillations Among Three Neutrino Types and CP Violation , 1978 .

[97]  M. Peloso,et al.  Production of Massive Fermions at Preheating and Leptogenesis , 1999, hep-ph/9905242.

[98]  I. Affleck,et al.  A NEW MECHANISM FOR BARYOGENESIS , 1985 .

[99]  Type II leptogenesis and the neutrino mass scale , 2004, hep-ph/0405093.

[100]  Permutation symmetry, tri - bimaximal neutrino mixing and the S3 group characters , 2003, hep-ph/0302025.

[101]  S. King.  Predicting neutrino parameters from SO(3) family symmetry and quark-lepton unification , 2005 .

[102]  A model for leptogenesis at the TeV scale , 2004, hep-ph/0409343.

[103]  T. Ohlsson,et al.  Triplet leptogenesis in left–right symmetric seesaw models , 2007, 0710.2408.

[104]  Leptogenesis at the TeV scale , 2001, hep-ph/0111089.

[105]  Michael G. Schmidt,et al.  Electroweak baryogenesis: Concrete in a SUSY model with a gauge singlet , 2000, hep-ph/0003122.

[106]  Alexandre Alves,et al.  Workshop on CP Studies and Non-Standard Higgs Physics , 2006, hep-ph/0608079.

[107]  S. Antusch.  Flavor-dependent type II leptogenesis , 2007, 0704.1591.

[108]  Flavour matters in leptogenesis , 2006, hep-ph/0605281.

[109]  A. Ibarra,et al.  A Lower bound on the right-handed neutrino mass from leptogenesis , 2002, hep-ph/0202239.

[110]  Andrei Linde,et al.  Is it easy to save the gravitino? , 1984 .

[111]  Phenomenology of Dirac neutrinogenesis in split supersymmetry , 2005, hep-ph/0511206.

[112]  TeV scale resonant leptogenesis from supersymmetry breaking , 2004, hep-ph/0403183.

[113]  S. King.  Constructing the large mixing angle MNS matrix in see-saw models with right-handed neutrino dominance , 2002, hep-ph/0204360.