Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Moshfegh, H. R."'
We investigate the weak semileptonic decay of the $ \Omega^{+}_{ccb} \rightarrow \Xi^{++}_{cc} ~{\ell}\bar\nu_{\ell}$, where a triply heavy baryon with spin 1/2 decays into the observed doubly heavy baryon with spin 1/2, using QCD sum rule method in
Externí odkaz:
http://arxiv.org/abs/2410.01602
We study the semileptonic decay of the doubly heavy baryon $ \Xi^{++}_{cc} $ into the singly heavy baryon $ \Xi^+_{c}$ within the three point QCD sum rule approach in two possible lepton channels. Our analysis includes perturbative as well as nonpert
Externí odkaz:
http://arxiv.org/abs/2409.00241
We investigate the semileptonic decay of $\Omega_b\to\Omega_c~{\ell}\bar\nu_{\ell}$ in three lepton channels. To this end, we use QCD sum rule method in three point framework to calculate the form factors defining the matrix elements of these transit
Externí odkaz:
http://arxiv.org/abs/2404.12654
We study the triply heavy spin-1/2 baryons with quark contents $ ccb $ and $ bbc $, and calculate their mass and residue using QCD sum rules. In the calculations, we consider the ground (1S), first orbitally excited (1P) and first radially excited (2
Externí odkaz:
http://arxiv.org/abs/2402.14348
The question of how and which physical observables or thermodynamic parameters can best predict the onset of a possible phase transition in the inner crust of neutron stars remains largely unresolved. Using semiclassical Monte Carlo simulations, we i
Externí odkaz:
http://arxiv.org/abs/2312.05613
Autor:
Karimi, Reza, Moshfegh, H. R.
In this paper, we investigate the structure of hybrid stars consisting of hadrons (neutrons, protons, sigmas, lambdas), leptons (electrons, muons), and quarks (up, down, strange). We use a relativistic mean-field (RMF) model namely the Sigma-omega-rh
Externí odkaz:
http://arxiv.org/abs/2212.06375
The poorly known crustal equation of state plays a critical role in many observational phenomena associated with a neutron star. Using semi-classical Monte Carlo simulations, we explore the possible configurations of the inner edge of the neutron-sta
Externí odkaz:
http://arxiv.org/abs/2201.02429
Publikováno v:
Phys. Rev. D 101, 123001 , 2020
The structure of hybrid stars within the nonperturbative framework of the field correlator method, extended to zero-temperature limit as a quark model, has been studied. For the hadronic sector, we have used the lowest-order constraint variational me
Externí odkaz:
http://arxiv.org/abs/2006.01019
Publikováno v:
Phys. Rev. C 101, 025807 (2020)
We reconsider the problem of the hyperon puzzle and its suggested solution by quark deconfinement within the two-phase approach to hybrid compact stars with recently obtained hadronic and quark matter equations of state. For the hadronic phase we emp
Externí odkaz:
http://arxiv.org/abs/1908.04740
Publikováno v:
Phys. Rev. D 101, 023004 (2020)
The hadron-quark phase transition in the core of heavy neutron star (NS) has been studied. For the hadronic sector, we have used the lowest-order constraint variational method by employing $ AV_{18} $, $ AV_{14}$, $ UV_{14}$, and Reid $ 68 $ two-body
Externí odkaz:
http://arxiv.org/abs/1907.12029