Lorentz violation and superpartner masses

Katz, Andrey; Shadmi, Yael

doi:10.1103/physrevd.74.115021

Cited by 13 publications

(12 citation statements)

References 19 publications

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“…EOS L matches the same hadron resonance gas below T c smoothly in a rapid cross-over transition to lattice QCD data [50] above T c . For the fit, the lattice data were plotted in the form p(e), interpolated, and then smoothly joined to the p(e) curve of the HRG.…”

Section: Initial Conditions Freeze-out and Equation Of Statesupporting

confidence: 53%

Multiplicity scaling in ideal and viscous hydrodynamics

2008

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Using numerical results from ideal and viscous relativistic hydrodynamic simulations with three different equations of state, for Au+Au and Cu+Cu collisions at different centralities and initial energy densities, we explore the dependence of the eccentricity-scaled elliptic flow, v 2 /ε, and the produced entropy fraction, S/S 0 , on the final charged hadron multiplicity density dN ch /dy per unit transverse overlap area S, (1/S)dN ch /dy. The viscous hydrodynamic simulations are performed with two different versions of the Israel-Stewart kinetic evolution equations, and in each case we investigate the dependence of the physical observables on the kinetic relaxation time. We find approximate scaling of v 2 /ε and S/S 0 with (1/S)dN ch /dy, with scaling functions that depend on the EOS and, in particular, on the value of the specific shear viscosity η/s. Small scaling violations are seen even in ideal hydrodynamics, caused by a breaking of the scale invariance of ideal fluid dynamics by the freeze-out condition. Viscous hydrodynamics shows somewhat larger scale-breaking effects that increase with increasing η/s and decreasing system size and initial energy density. We propose to use precision studies of these scaling violations to help constrain the shear viscosity η/s of the quark-gluon plasma created in relativistic heavy ion collisions.

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Section: Initial Conditions Freeze-out and Equation Of Statesupporting

confidence: 53%

Multiplicity scaling in ideal and viscous hydrodynamics

2008

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“…We highlight the works of Refs. [43][44][45][46][47][48][49][50][51][52][53], where we have listed papers that put SUSY in direct association with models of CPT-breaking and LSV. More recently, the relationship between SUSY breaking and LSV has been discussed in the works by Chkareuli [12] and in the article by Pospelov and Tamarit [13], where these authors consider the possibility that SUSY and Lorentz-symmetry breaking have a common origin if supersymmetric matter is coupled to Horava-Lifshitz gravity.…”

Section: Introductionmentioning

confidence: 99%

Aspects of CPT-even Lorentz-symmetry violating physics in a supersymmetric scenario

et al. 2015

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Background fermion condensates in a landscape dominated by global supersymmetry are reassessed in connection with a scenario where Lorentz symmetry is violated in the bosonic sector (actually, the photon sector) by a CPT-even k F term. An effective photonic action is discussed that originates from the supersymmetric background fermion condensates. Also, the photino mass emerges in terms of a particular condensate contrary to what happens in the case of k AF -violation. Finally, the interparticle potential induced by the effective photonic action is investigated and a confining profile is identified.

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“…However, we would like to point out that, in the work of Ref. [32], Katz and Shadmi, present an interesting discussion in the rôle of vacuum expectation values that violate Lorentz symmetry as a possible to realise SUSY breaking by Fand Dterms in the MSSM.…”

Section: Introductionmentioning

confidence: 97%

A Discussion on the Rôle of Fermionic Supersymmetric Partners in Lorentz-symmetry Breaking

Helayël-Neto¹

2011

Proceedings of 4th International Conference on Fundamental Interactions — PoS(ICFI 2010)

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Lorentz violation and superpartner masses

Cited by 13 publications

References 19 publications

Multiplicity scaling in ideal and viscous hydrodynamics

Multiplicity scaling in ideal and viscous hydrodynamics

Aspects of CPT-even Lorentz-symmetry violating physics in a supersymmetric scenario

A Discussion on the Rôle of Fermionic Supersymmetric Partners in Lorentz-symmetry Breaking

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