Chiral symmetry and effective field theories for hadronic, nuclear and stellar matter

Holt, Jeremy W.; Rho, Mannque; Weise, W.

doi:10.1016/j.physrep.2015.10.011

Cited by 86 publications

(103 citation statements)

References 306 publications

(555 reference statements)

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“…For simplicity we shall refer to pions simply as Nambu-Goldstone bosons in the following. 4 An alternative effective field theory incorporating hidden local symmetry and vector meson fields is reviewed and discussed in [13]. flavor degrees freedom (N c = 3, N f = 2) and t a (a = 1, ..., 8) are the generators of the SU (3) c color gauge group.…”

Section: Chiral Symmetry and The Pionmentioning

confidence: 99%

“…Various applications of in-medium chiral perturbation theory have been reported in recent years (see [12,13] and refs. therein).…”

Section: Nuclear Many-body Forcesmentioning

confidence: 99%

“…In principle, the physics results in this long-wavelength limit should match those from chiral effective field theory if the in-medium ChPT loop expansion is taken to sufficiently high order. The FRG treatment of fluctuations involving pions has a correspondence (although not one-to-one 13 ) in the loop expansion of ChEFT. It is then an interesting point to compare (non-perturbative) FRG results with (perturbative) in-medium ChEFT calculations, in particular with reference to convergence issues in the latter as one progresses to higher baryon densities.…”

Section: Renormalization Group Strategiesmentioning

confidence: 99%

“…This is the starting point for a systematic approach to nuclear many-body dynamics and thermodynamics at densities and temperatures well within the hadronic, "confined" phase of QCD [12,13] 4 .…”

Section: Introductory Surveymentioning

confidence: 99%

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Functional renormalization group studies of nuclear and neutron matter

Drews

Weise

2017

Progress in Particle and Nuclear Physics

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Functional renormalization group (FRG) methods applied to calculations of isospinsymmetric and asymmetric nuclear matter as well as neutron matter are reviewed. The approach is based on a chiral Lagrangian expressed in terms of nucleon and meson degrees of freedom as appropriate for the hadronic phase of QCD with spontaneously broken chiral symmetry. Fluctuations beyond mean-field approximation are treated solving Wetterich's FRG flow equations. Nuclear thermodynamics and the nuclear liquid-gas phase transition are investigated in detail, both in symmetric matter and as a function of the proton fraction in asymmetric matter. The equations of state at zero temperature of symmetric nuclear matter and pure neutron matter are found to be in good agreement with advanced ab-initio many-body computations. Contacts with perturbative many-body approaches (in-medium chiral perturbation theory) are discussed. As an interesting test case, the density dependence of the pion mass in the medium is investigated. The question of chiral symmetry restoration in nuclear and neutron matter is addressed. A stabilization of the phase with spontaneously broken chiral symmetry is found to persist up to high baryon densities once fluctuations beyond mean-field are included. Neutron star matter including beta equilibrium is discussed under the aspect of the constraints imposed by the existence of two-solar-mass neutron stars.

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Section: Chiral Symmetry and The Pionmentioning

confidence: 99%

“…Various applications of in-medium chiral perturbation theory have been reported in recent years (see [12,13] and refs. therein).…”

Section: Nuclear Many-body Forcesmentioning

confidence: 99%

Section: Renormalization Group Strategiesmentioning

confidence: 99%

Section: Introductory Surveymentioning

confidence: 99%

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Functional renormalization group studies of nuclear and neutron matter

Drews

Weise

2017

Progress in Particle and Nuclear Physics

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“…For the two-flavor case with almost massless u, d quarks and spontaneously broken SU (2) L × SU (2) R symmetry, chiral perturbation theory (ChPT) has been applied successfully to ππ, πN and N N scattering. Moreover, in-medium ChPT has been developed as an appropriate tool for treating the nuclear many-body problem at moderate densities (for recent reviews see [2,3] and refs. therein).…”

mentioning

confidence: 99%

Topics in low-energy QCD with strange quarks

Weise

2015

Hyperfine Interact

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Recent developments and pending issues in low-energy strong interaction physics with strangeness are summarized. Chiral SU(3) effective field theory has progressed as the appropriate theoretical framework applied to antikaon-and hyperon-nuclear systems. Topics include antikaon-nucleon interactions and the Λ(1405),KN N systems, recent developments in hyperonnucleon interactions and strangeness in dense baryonic matter with emphasis on new constraints from neutron star observations. Keywords Chiral effective field theories · strangeness · antikaon-nucleon interactons · hyperon-nucleon interactions · neutron stars PACS 12.39.Fe · 13.75.-n · 26.60.-c

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Phases of Dense Matter in Compact Stars

Blaschke

Chamel

2018

The Physics and Astrophysics of Neutron Stars

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Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars are unique cosmic laboratories for probing the properties of matter under extreme conditions that cannot be reproduced in terrestrial laboratories. The interior of a neutron star, endowed with the highest magnetic fields known and with densities spanning about ten orders of magnitude from the surface to the centre, is predicted to exhibit various phases of dense strongly interacting matter, whose physics is reviewed in this chapter. The outer layers of a neutron star consist of a solid nuclear crust, permeated by a neutron ocean in its densest region, possibly on top of a nuclear "pasta" mantle. The properties of these layers and of the homogeneous isospin asymmetric nuclear matter beneath constituting the outer core may still be constrained by terrestrial experiments. The inner core of highly degenerate, strongly interacting matter poses a few puzzles and questions which are reviewed here together with perspectives for their resolution. Consequences of the dense-matter phases for observables such the neutron-star mass-radius relationship and the prospects to uncover their structure with modern observational programmes are touched upon.

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Chiral symmetry and effective field theories for hadronic, nuclear and stellar matter

Cited by 86 publications

References 306 publications

Functional renormalization group studies of nuclear and neutron matter

Functional renormalization group studies of nuclear and neutron matter

Topics in low-energy QCD with strange quarks

Phases of Dense Matter in Compact Stars

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