Quark mass dependence of ππ scattering in isospin 0, 1, and 2 from lattice QCD [PDF]
Physical Review D, 2023 Using lattice QCD we extract $\pi\pi$ scattering amplitudes with isospin--0,1,2 in low partial-waves at two values of the light quark mass corresponding to $m_\pi \sim 283$ and $330$ MeV.
A. Rodas, J. Dudek, R. Edwards
semanticscholar +1 more source
Isospin equilibration in neutron star mergers [PDF]
Physical Review C, 2023 We analyze the isospin equilibration properties of neutrinoless nuclear ($npe$) matter in the temperature and density range that is relevant to neutron star mergers.
M. Alford, A. Haber, Ziyuan Zhang
semanticscholar +1 more source
QCD equation of state at finite isospin density from the linear sigma model with quarks: The cold case [PDF]
Physical Review D, 2023 We use the two-flavor linear sigma model with quarks to study the phase structure of isospin asymmetric matter at zero temperature. The meson degrees of freedom provide the mean field chiral- and isospin-condensates on top of which we compute the ...
A. Ayala +4 more
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Cascade of isospin phase transitions in Bernal-stacked bilayer graphene at zero magnetic field [PDF]
Nature Physics, 2021 Emergent phenomena arising from the collective behaviour of electrons is expected when Coulomb interactions dominate over the kinetic energy, and one way to create this situation is to reduce the electronic bandwidth.
S. C. de la Barrera +7 more
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Equation of state and speed of sound of isospin-asymmetric QCD on the lattice [PDF]
Journal of High Energy Physics, 2022 We determine the QCD equation of state at nonzero temperature in the presence of an isospin asymmetry between the light quark chemical potentials on the lattice.
B. Brandt, F. Cuteri, G. Endrődi
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Isospin-breaking corrections to light-meson leptonic decays from lattice simulations at physical quark masses [PDF]
Journal of High Energy Physics, 2022 The decreasing uncertainties in theoretical predictions and experimental measurements of several hadronic observables related to weak processes, which in many cases are now smaller than O(1%), require theoretical calculations to include subleading ...
P. Boyle +12 more
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Competition of chiral soliton lattice and Abrikosov vortex lattice in QCD with isospin chemical potential [PDF]
The European Physical Journal C, 2022 We investigate the thermodynamics of two-flavor quark matter in presence of nonzero isospin chemical potential and external magnetic field. It is known that at sufficiently high isospin chemical potential, charged pions undergo Bose–Einstein condensation
Martin Spillum Grønli, T. Brauner
semanticscholar +1 more source
Isospin- and momentum-polarized orders in bilayer graphene [PDF]
Physical review B, 2021 Electron bands in the untwisted bilayer graphene flatten out in a transverse electric field, offering a promising platform for correlated electron physics.
Zhiyu Dong +3 more
semanticscholar +1 more source
Phases of rotating baryonic matter: non-Abelian chiral soliton lattices, antiferro-isospin chains, and ferri/ferromagnetic magnetization [PDF]
Journal of High Energy Physics, 2021 A chiral soliton lattice (CSL), proposed as the ground state of rotating baryonic matter at a finite density, is shown to be unstable in a large parameter region for two flavors owing to pion condensations, leading to two types of non-Abelian (NA) CSL ...
M. Eto, K. Nishimura, M. Nitta
semanticscholar +1 more source
R-Matrix study of the β+decay of 8B to the highly excited states of 8Be [PDF]
EPJ Web of Conferences, 2023 Experiment IS633 was conducted at the ISOLDE facility with the aim of studying the 2+ isospin doublet of 8Be, the only expected case of nearly equal isospin configuration mixing.
Fernandez Ruiz D. +6 more
doaj +1 more source