Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Iida Kei"'
We theoretically investigate quasiparticle properties of a neutron immersed in an alpha condensate, which is one of the possible states of dilute symmetric nuclear matter. The resonant $p$-wave neutron-alpha scattering, which plays a crucial role in
Externí odkaz:
http://arxiv.org/abs/2408.15043
We investigate the phase structure and the equation of state (EoS) for dense two-color QCD (QC$_2$D) at low temperature ($T = 40$ MeV, $32^4$ lattice) for the purpose of extending our previous works~\cite{Iida:2019rah, Iida:2022hyy} at $T=80$ MeV ($1
Externí odkaz:
http://arxiv.org/abs/2405.20566
Publikováno v:
EPJ Web of Conferences, Vol 260, p 11045 (2022)
We present stability and structure of two-and three-alpha systems embedded in dilute cold neutron matter. By solving a few-alpha Schrödinger equation with quasiparticle properties, i.e.,effective mass and induced two-and three-alpha interactions, wh
Externí odkaz:
https://doaj.org/article/e3ff066795dd43de8f312d2909c6f960
We theoretically investigate a non-relativistic trace anomaly and its impact on the low-temperature equation of state in spatially one-dimensional three-component fermionic systems with a three-body interaction, which exhibit a non-trivial three-body
Externí odkaz:
http://arxiv.org/abs/2402.04960
We construct an extended version of the linear sigma model in such a way as to describe spin-$1$ hadrons as well as spin-$0$ hadrons in two-color QCD (QC$_2$D) by respecting the Pauli-G\"{u}rsey $SU(4)$ symmetry. Within a mean-field approximation, we
Externí odkaz:
http://arxiv.org/abs/2312.17017
Publikováno v:
AAPPS Bull. 34, 9 (2024)
Neutron star observations, as well as experiments on neutron-rich nuclei, used to motivate one to look at degenerate nuclear matter from its extreme, namely, pure neutron matter. As an important next step, impurities and clusters in dilute neutron ma
Externí odkaz:
http://arxiv.org/abs/2310.19422
We formulate a method for calculating the hadron-hadron scattering amplitudes at nonzero chemical potential ($\mu$) in the hadronic phase at zero temperature, where the baryon number symmetry remains to be violated. Although it is widely believed tha
Externí odkaz:
http://arxiv.org/abs/2309.08143
Publikováno v:
Phys. Lett. B 851, 138567 (2024)
We show that strong spin-triplet neutron-proton interaction causes polaronic protons to occur in neutron matter at subnuclear densities and nonzero temperature. As the neutron density increases, proton spectra exhibit a smooth crossover from a bare i
Externí odkaz:
http://arxiv.org/abs/2304.00535
Publikováno v:
Symmetry 15, 333 (2023)
We discuss the hadron--quark crossover accompanied by the formation of Cooper triples (three-body counterpart of Cooper pairs) by analogy with the Bose--Einstein condensate to Bardeen--Cooper--Schrieffer crossover in two-component fermionic systems.
Externí odkaz:
http://arxiv.org/abs/2211.14194
We investigate hadron spectra in 2-color QCD using lattice simulation with $N_{f}=2$ at low temperature and finite density in which there appears not only the hadronic phase but also the superfluid phase. We first calculate the pion and rho meson spe
Externí odkaz:
http://arxiv.org/abs/2211.13472