Results 51 to 60 of about 8,315 (193)

Higher spin supersymmetry at the cosmological collider: sculpting SUSY rilles in the CMB

open access: yesJournal of High Energy Physics, 2019
We study the imprint of higher spin supermultiplets on cosmological correlators, namely the non-Gaussianity of the cosmic microwave background. Supersymmetry is used as a guide to introduce the contribution of fermionic higher spin particles, which have ...
Stephon Alexander   +4 more
doaj   +1 more source

High-Power Supersymmetric Semiconductor Laser with a Narrow Linewidth

open access: yesPhotonics, 2023
We have designed and fabricated a kind of supersymmetric slotted Fabry–Perot semiconductor laser near 1550 nm to achieve a single-mode, high-power, and narrow-linewidth operation.
Yuanbo Xu   +6 more
doaj   +1 more source

UV Shadows in EFTs: Accidental Symmetries, Robustness and No‐Scale Supergravity

open access: yesFortschritte der Physik, Volume 68, Issue 10, October 2020., 2020
Abstract We argue that accidental approximate scaling symmetries are robust predictions of weakly coupled string vacua, and show that their interplay with supersymmetry and other (generalised) internal symmetries underlies the ubiquitous appearance of no‐scale supergravities in low‐energy 4D EFTs.
C. P. Burgess   +4 more
wiley   +1 more source

Black hole superpartners and fixed scalars [PDF]

open access: yesPhysical Review D, 1997
Some bosonic solutions of supergravities admit Killing spinors of unbroken supersymmetry. The anti-Killing spinors of broken supersymmetry can be used to generate the superpartners of stringy black holes. This has a consequent feedback on the metric and the graviphoton.
Andrei Linde, Renata Kallosh
openaire   +2 more sources

Massive Spinning Relativistic Particle: Revisited under BRST and Supervariable Approaches

open access: yesAdvances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
We discuss the continuous and infinitesimal gauge, supergauge, reparameterization, nilpotent Becchi‐Rouet‐Stora‐Tyutin (BRST), and anti‐BRST symmetries and derive corresponding nilpotent charges for the one (0 + 1)‐dimensional (1D) massive model of a spinning relativistic particle.
A. Tripathi   +4 more
wiley   +1 more source

Massive vector multiplet with Dirac-Born-Infeld and new Fayet-Iliopoulos terms in supergravity

open access: yesJournal of High Energy Physics, 2018
We propose a four-dimensional N = 1 supergravity-based Starobinsky-type inflationary model in terms of a single massive vector multiplet, whose action includes the Dirac-Born-Infeld-type kinetic terms and a generalized (new) Fayet-Iliopoulos-type term ...
Hiroyuki Abe   +3 more
doaj   +1 more source

The scale of superpartner masses and electroweakino searches at the high-luminosity LHC

open access: yesJournal of High Energy Physics, 2020
Searches for weakly interacting particles is one of the main goals of the high luminosity LHC run. In this work we study the well motivated cases of electroweakinos with mostly Wino and Bino components.
Jia Liu   +3 more
doaj   +1 more source

Supersymmetric Galilean Electrodynamics

open access: yesJournal of High Energy Physics, 2022
In 2+1 dimensions, we propose a renormalizable non-linear sigma model action which describes the N $$ \mathcal{N} $$ = 2 supersymmetric generalization of Galilean Electrodynamics.
Stefano Baiguera   +2 more
doaj   +1 more source

$$\alpha $$ α -attractors from supersymmetry breaking

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We construct new models of inflation and spontaneous supersymmetry breaking in de Sitter vacuum, with a single chiral superfield, where inflaton is the superpartner of the goldstino.
Yermek Aldabergenov   +2 more
doaj   +1 more source

Gravitino Freeze-In [PDF]

open access: yes, 2011
We explore an alternative mechanism for the production of gravitino dark matter whereby relic gravitinos originate from the decays of superpartners which are still in thermal equilibrium, i.e. via freeze-in.
Cheung, Clifford   +2 more
core   +2 more sources

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