Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Piyabut Burikham"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 8, Pp 1-18 (2024)
Abstract We consider Klein–Gordon equation in the Dyonic Kerr–Sen black hole background, which is the charged rotating axially symmetric solution of the Einstein–Maxwell–Dilaton–Axion theory of gravity. The black hole incorporates electric,
Externí odkaz:
https://doaj.org/article/03655da59e0f4c9589a36061f7ad70f6
Autor:
Byon N. Jayawiguna, Piyabut Burikham
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 3, Pp 1-20 (2024)
Abstract In comparison to the original Tolman VII model, Exact Modified Tolman VII (EMTVII) with one additional parameter can increase the compactness of compact object. When the compactness is in the ultracompact regime, the quasinormal modes (QNMs)
Externí odkaz:
https://doaj.org/article/56609050f4fa4d93bbd01242b39ca502
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 2, Pp 1-16 (2024)
Abstract In this work, we study the Kerr–Sen–de Sitter black hole (BH) in the Nariai limit where the event and cosmological horizon coincide. We show that the near-horizon Kerr–Sen–de Sitter black hole in Nariai limit is a fiber over AdS $$_2
Externí odkaz:
https://doaj.org/article/de9632b85ac84ce592e7ca965d648efa
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 2, Pp 1-9 (2022)
Abstract Tidal deformation of neutron star with multiquark core is calculated using nuclear and multiquark equations of state. The equation of state of the multiquark phase from the holographic Sakai-Sugimoto (SS) model is relatively stiff in the low
Externí odkaz:
https://doaj.org/article/82d63ea078f44c8c9e38169823ef83c4
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-13 (2021)
Abstract Phases of nuclear matter are crucial in the determination of physical properties of neutron stars (NS). In the core of NS, the density and pressure become so large that the nuclear matter possibly undergoes phase transition into a deconfined
Externí odkaz:
https://doaj.org/article/ab3d4674233d4f68ad0bf9073b9c4ca5
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 12, Pp 1-13 (2020)
Abstract Scattering of charged fermion with $$(1+2)$$ ( 1 + 2 ) -dimensional wormhole in the presence of constant axial magnetic flux is explored. By extending the class of fermionic solutions of the Dirac equation in the curved space of wormhole sur
Externí odkaz:
https://doaj.org/article/cf2dfd6470c5493ea7cdfb04c9206bf2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-19 (2020)
Abstract A number of near-extremal conditions are utilized to simplify the equation of motion of the neutral scalar perturbations in generalized spherically symmetric black hole background into a differential equation with the Pöschl–Teller potent
Externí odkaz:
https://doaj.org/article/abceae10b65844b79ba1b04fa196cb8d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-17 (2019)
Abstract We investigate the effects of magnetic field on a charged fermion in a $$(1+2)$$ (1+2) -dimensional wormhole. Applying external magnetic field along the axis direction of the wormhole, the Dirac equation is set up and analytically solved in
Externí odkaz:
https://doaj.org/article/abc9b227482f4403b075cac6cb3271af
Autor:
Piyabut Burikham, Daris Samart
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 6, Pp 1-10 (2019)
Abstract We consider contributions of the open-string singlet (OSS) interaction to the proton–proton scattering. Modelling baryon and meson as instanton and open string in the effective QCD string model, the typical pomeron is identified with a mas
Externí odkaz:
https://doaj.org/article/8661b55d47af45f6bcaea72585f41af7
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 11, Pp 1-17 (2018)
Abstract We consider the mass-radius bounds for spherically symmetric static compact objects in the de Rham-Gabadadze-Tolley (dRGT) massive gravity theories, free of ghosts. In this type of gravitational theories the graviton, the quantum of gravity,
Externí odkaz:
https://doaj.org/article/dc8c599dd870408eb7bb17e82b40e2d2