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pro vyhledávání: '"Naghdi, M."'
Autor:
Naghdi, M.
Publikováno v:
Chin. Phys. C 48, 043104 (2024)
With a 4-form ansatz of 11-dimensional supergravity over non-dynamical AdS$_4 \times S^7/Z_k$ background, with the internal space as a $S^1$ Hopf fibration on CP$^3$, we get a consistent truncation. The (pseudo)scalars, in the resulting scalar equati
Externí odkaz:
http://arxiv.org/abs/2311.11671
Autor:
Naghdi, M.
Publikováno v:
Eur. Phys. J. Plus 138, 300 (2023)
For a nonlinear partial differential equation for (pseudo)scalars in the bulk of Euclidean AdS_4, arising from a truncation of 11-dimensional supergravity over AdS_4 x S^7/Z_k, we use math tools and in particular Adomian Decomposition Method, with in
Externí odkaz:
http://arxiv.org/abs/2005.00358
Autor:
Naghdi, M.
Publikováno v:
Eur. Phys. J. Plus 138, 45 (2023)
We present new SO(4)-invariant and non-supersymmetric instanton solutions for the conformally coupled m^2=-2 and massive m^2=+4 (pseudo)scalars arising from a consistent truncation of 11-dimensional supergravity over AdS_4 x S^7/Z_k when the internal
Externí odkaz:
http://arxiv.org/abs/2002.06547
Publikováno v:
In Measurement 30 November 2023 222
Akademický článek
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Autor:
Naghdi, M.
Publikováno v:
Fortschr. Phys. 1800044, 2018
From a consistent Kaluza-Klein truncation of 11-dimensional supergravity over AdS_4 x CP^3 x S^1/Z_k, with a general 4-form ansatz, we arrive at a set of equations and solutions for the included fields. In particular, we have a bulk equation for a se
Externí odkaz:
http://arxiv.org/abs/1708.02530
Autor:
Naghdi, M.
Publikováno v:
Eur. Phys. J. Plus 133, 307 (2018)
We include a new 7-form ansatz in 11-dimensional supergravity over AdS_4 x S^7/Z_k when the internal space is considered as a U(1) bundle on CP^3. After a general analysis of the ansatz, we take a special form of it and obtain a scalar equation from
Externí odkaz:
http://arxiv.org/abs/1703.02765
Autor:
Naghdi, M.
Publikováno v:
Class. Quantum Grav. 33, 115005 (2016)
For the 11-dimensional supergravity over AdS_4 x S^7/Z_k, beginning with a general 4-from ansatz and the main geometry unchanged, we get a tower of massive and tachyonic pseudoscalars. Indeed, the resultant equations can be assigned to the so-called
Externí odkaz:
http://arxiv.org/abs/1505.00179
Autor:
Naghdi, M.
Publikováno v:
Class. Quantum Grav. 32, 215018 (2015)
We consider a few ansatzs for the four and seven forms of 11-dimensional supergravity over AdS_4 x S^7/Z_k while try to keep the geometry unchanged. From the 4-form equations, we arrive at some massless scalars and pseudoscalars in the bulk of Euclid
Externí odkaz:
http://arxiv.org/abs/1502.03281
Autor:
Naghdi, M.
Publikováno v:
Phys. Part. Nucl. Lett. 4, 440 (2014)
The aim is to compare a few Nucleon-Nucleon (NN) potentials especially Reid68, Reid68-Day, Reid93, UrbanaV14, ArgonneV18, Nijmegen 93, Nijmegen I and Nijmegen II. Although these potentials have some likenesses and are almost phenomenological, they in
Externí odkaz:
http://arxiv.org/abs/1306.5687