Results 141 to 150 of about 21,328 (279)

Some aspects of N = 1 SYM renormalization

open access: yesEPJ Web of Conferences, 2016
Using the BRST invariant version of the higher covariant derivative regularization, we demonstrate that in N = 1 supersymmetric gauge theories the three-point vertices with two ghost legs and a single leg of the quantum gauge superfield are finite in all
Stepanyantz Konstantin
doaj   +1 more source

Superfield theory and supermatrix model [PDF]

open access: yesFortschritte der Physik, 2003
AbstractWe show that any superfield theory can be reformulated as a supermatrix model. The claim is based on a formal argument, turning on a non‐commutativity on the superspace and taking a fine tuned commutative limit. Once the non‐commutativity is introduced on the superspace, superfield theories can be formulated in two equivalent ways, through the ...
openaire   +5 more sources

A note on gravitational particle production in supergravity

open access: yesPhysics Letters B, 2019
It is pointed out that the gravitational particle production rate of a scalar component of a chiral superfield in supergravity with minimal Kähler potential can be significantly suppressed compared with a minimal scalar field in non-supersymmetric ...
Kazunori Nakayama
doaj  

On the two-loop divergences in 6D, N=(1,1) SYM theory

open access: yesPhysics Letters B, 2021
We continue studying 6D,N=(1,1) supersymmetric Yang-Mills (SYM) theory in the N=(1,0) harmonic superspace formulation. Using the superfield background field method we explore the two-loop divergences of the effective action in the gauge multiplet sector.
I.L. Buchbinder   +3 more
doaj  

Inflation in supergravity with a single chiral superfield

open access: yesPhysics Letters B, 2014
We propose new supergravity models describing chaotic Linde- and Starobinsky-like inflation in terms of a single chiral superfield. The key ideas to obtain a positive vacuum energy during large field inflation are (i) stabilization of the real or ...
Sergei V. Ketov, Takahiro Terada
doaj   +1 more source

Low-scale SUSY breaking and the (s)goldstino physics

open access: yes, 2012
For a 4D N=1 supersymmetric model with a low SUSY breaking scale (f) and general Kahler potential K(Phi^i,Phi_j^*) and superpotential W(Phi^i) we study, in an effective theory approach, the relation of the goldstino superfield to the (Ferrara-Zumino ...
Antoniadis, I., Ghilencea, D. M.
core   +1 more source

On the Seiberg-Witten map of ${\cal N}=2$ SYM theory in Non(anti)commutative Harmonic Superspace

open access: yes, 2004
We consider ${\cal N}=2$ supersymmetric U(1) gauge theory in a nonanticommutative ${\cal N}=2$ harmonic superspace with the singlet deformation. We generalize analytic superfield and gauge parameter to the nonanticommutative theory so that gauge ...
Araki   +14 more
core   +1 more source

Moduli induced cogenesis of baryon asymmetry and dark matter

open access: yesPhysics Letters B, 2016
We study a cogenesis mechanism in which the observed baryon asymmetry of the universe and the dark matter abundance can be produced simultaneously at low reheating temperature without violating baryon number in the fundamental interactions. In particular,
Mansi Dhuria, Chandan Hati, Utpal Sarkar
doaj   +1 more source

Cubic interactions for arbitrary spin N $$ \mathcal{N} $$ -extended massless supermultiplets in 4d flat space

open access: yesJournal of High Energy Physics, 2019
N $$ \mathcal{N} $$ -extended massless arbitrary integer and half-integer spin supermultiplets in four dimensional flat space are studied in the framework of light-cone gauge formalism.
R.R. Metsaev
doaj   +1 more source

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