PeV scale Left–Right symmetry and baryon asymmetry of the Universe

Sarkar, Anjishnu; Abhishek, Abhishek; Yajnik, Urjit A.

doi:10.1016/j.nuclphysb.2008.03.020

Cited by 14 publications

(35 citation statements)

References 73 publications

(106 reference statements)

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“…It was shown that this model breaks down to minimal supersymmetric standard model (MSSM) at low scale. This model was studied in the context of cosmology in [39,51] specifically, the mechanism for leptogenesis via Domain Walls in [40].…”

Section: Minimal Supersymmetric Left-right Model : a Recapmentioning

confidence: 99%

“…Since the original theory is parity invariant a second solution for the F and D flat conditions exists, with Left type fields' vev's exchanged with those of the Right type fields [39,40].…”

Section: Minimal Supersymmetric Left-right Model : a Recapmentioning

confidence: 99%

“…Due to the existence of two different sets of solutions for the possible vev's, formation of domain walls (DW) is inevitable [39,40] in both the models considered above. Stable walls are known to overclose the Universe [20] [55] and are undesirable.…”

Section: Cosmology Of Breaking and Soft Termsmentioning

confidence: 99%

“…(16) we can constrain the differences between the soft terms in the Left and Right sectors [39,40]. According to eq.…”

Section: Cosmology Of Breaking and Soft Termsmentioning

confidence: 99%

“…In an earlier work two of the authors have explored the possibility of consistent cosmology in this class of models, primarily the questions of removal of unwanted relics [39] and the role of domain walls as possible catalysers of leptogenesis [40]. Exact Left-Right symmetry of the underlying model however does not permit instability of the domain walls.…”

Section: Introductionmentioning

confidence: 99%

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Gauge mediated supersymmetry breaking and the cosmology of the left-right symmetric model

2009

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Left-Right symmetry including supersymmetry presents an important class of gauge models which may possess natural solutions to many issues of phenomenology. Cosmology of such models indicates a phase transition accompanied by domain walls. Such walls must be unstable in order to not conflict with standard cosmology, and can further be shown to assist with open issues of cosmology such as dilution of unwanted relic densities and leptogenesis. In this paper we construct a model of gauge mediated supersymmetry breaking in which parity breaking is also signalled along with supersymmetry breaking and so as to be consistent with cosmological requirements.It is shown that addressing all the stated cosmological issues requires an extent of fine tuning, while in the absence of fine tuning, leptogenesis accompanying successful completion of the phase transition is still viable.

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Section: Minimal Supersymmetric Left-right Model : a Recapmentioning

confidence: 99%

“…Since the original theory is parity invariant a second solution for the F and D flat conditions exists, with Left type fields' vev's exchanged with those of the Right type fields [39,40].…”

Section: Minimal Supersymmetric Left-right Model : a Recapmentioning

confidence: 99%

Section: Cosmology Of Breaking and Soft Termsmentioning

confidence: 99%

“…(16) we can constrain the differences between the soft terms in the Left and Right sectors [39,40]. According to eq.…”

Section: Cosmology Of Breaking and Soft Termsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Gauge mediated supersymmetry breaking and the cosmology of the left-right symmetric model

2009

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Domain walls and CP violation with left right supersymmetry: implications for leptogenesis and electron EDM

Banerjee

Yajnik

2021

J. High Energ. Phys.

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Low scale leptogenesis scenarios are difficult to verify due to our inability to relate the parameters involved in the early universe processes with the low energy or collider observables. Here we show that one can in principle relate the parameters giving rise to the transient CP violating phase involved in leptogenesis with those that can be deduced from the observation of electric dipole moment (EDM) of the electron. We work out the details of this in the context of the left right symmetric supersymmetric model (LRSUSY) which provides a strong connection between such parameters. In particular, we show that baryon asymmetry requirements imply the scale MB−L of U(1)B−L symmetry breaking to be larger than 104.5 GeV. Moreover the scale MR of SU(2)R symmetry breaking is tightly constrained to lie in a narrow band significantly below $$ {M}_{B-L}^2/{M}_{EW} $$ M B − L 2 / M EW . These are the most stringent constraints on the parameter space of LRSUSY model being considered.

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Spontaneous parity breaking and supersymmetry breaking in metastable vacua with consistent

Borah¹,

Yajnik²

2011

J. High Energ. Phys.

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We study the compatibility of spontaneous breaking of parity and successful cosmology in a left-right symmetric model where supersymmetry breaking is achieved in metastable vacua. We show that domain walls formed due to this breaking can be removed due to Planck scale suppressed terms, provided the parity breaking scale M R is constrained to remain smaller than 10 10 − 10 11 GeV. Ensuring metastability is achieved naturally even if the entire mechanism operates at low scales, within a few orders of magnitude of the TeV scale. Taking M R as high as permitted, close to the acceptable reheat temperature after inflation, would require the magnetic phase of the Supersymmetric Quantum Chromodynamics (SQCD) to have set in before the end of inflation.

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PeV scale Left–Right symmetry and baryon asymmetry of the Universe

Cited by 14 publications

References 73 publications

Gauge mediated supersymmetry breaking and the cosmology of the left-right symmetric model

Gauge mediated supersymmetry breaking and the cosmology of the left-right symmetric model

Domain walls and CP violation with left right supersymmetry: implications for leptogenesis and electron EDM

Spontaneous parity breaking and supersymmetry breaking in metastable vacua with consistent

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