The hadron resonance gas (HRG) is a widely used description of matter under extreme conditions, e.g., in the context heavy-ion phenomenology. Commonly implementations HRG employ vacuum masses throughout hadronic phase and hence do not include possible in-medium effects. Here we investigate this issue, using nonperturbative lattice simulations employing FASTSUM anisotropic ${N}_{f}=2+1$ ensembles. We study fate octet decuplet baryons as temperature increases, focussing particular on positive-...

We study what happens to the N , Δ and Ω baryons in hadronic gas quark-gluon plasma, with particular interest parity doubling its emergence as plasma is heated. This done using simulations of lattice QCD, employing FASTSUM anisotropic f = 2 + 1 ensembles, four temperatures below above deconfinement transition temperature. Below T c we find that positive-parity groundstate masses are largely temperature independent, whereas negative-parity ones reduced considerably increases. may be for...

What is the dynamics of heavy quarks and antiquarks in a quark gluon plasma? Can heavy-quark bound states dissociate? they (re)combine? These questions are addressed by investigating Lindblad equation that describes quantum medium. The equations for quark-antiquark pair derived from gauge theory, following chain well-defined approximations. In this work case an abelian plasma has been considered, but extension to non-abelian feasible. A one-dimensional simulation performed extract...

We investigate the fate of baryons made out u, d and s quarks in hadronic gas quark-gluon plasma, using nonperturbative lattice simulations, employing FASTSUManisotropic N f = 2+1 ensembles. In confined phase a strong temperature dependence is seen masses negative-parity groundstates, while positiveparity groundstate are approximately independent, within error. At high parity doubling emerges. A noticeable effect heavier quark seen. give simple description medium-dependent for negativeparity...

We analyse the behaviour of hyperons with strangeness S = –1,–2,–3 in hadronic and quark gluon plasma phases, particular interest parity doubling its emergence as temperature grows. This study uses our FASTSUM anisotropic N f 2+1 ensembles, four temperatures below above deconfinement transition temperature, T c . The positive-parity groundstate masses are found to be largely independent , whereas negative-parity ones decrease considerably increases. Close transition, almost degenerate, line...

In order to study the fate of mesons in thermal QCD at finite baryon chemical potential, we consider light mesonic correlation functions using Taylor expansion ${\cal O}((\mu/T)^2)$, both hadronic and quark-gluon plasma phases. We use FASTSUM anisotropic fixed-scale lattices with $N_f = 2+1$ flavours Wilson fermion. find that correlators are sensitive finite-density corrections second-order terms indicate chiral crossover vector axial-vector channels.

Baryonic correlation functions provide an ideal tool to study parity doubling and chiral symmetry using lattice simulations.We present a 2 + 1 flavours of anisotropic Wilson clover fermions on the FAST-SUM ensembles find clear evidence that emerges in quark-gluon plasma.This result is confirmed level spectral functions, which are obtained MEM reconstruction.We further highlight importance Gaussian smearing this study.

At zero temperature the negative-parity ground states of nucleon and delta baryons are non-degenerate with positive-parity partners due to spontaneous breaking chiral symmetry. However, symmetry is expected be restored at sufficiently high temperature, in particular when going from hadronic quark-gluon plasma (QGP) phase. This would imply that channels opposite parity become degenerate. We study (spin 1/2) Delta 3/2) both sectors using lattice QCD. The range temperatures spans QGP phases....

In this work we analyse positive- and negative-parity channels for the nucleon (spin $1/2$ octet), $\Delta$ $\Omega$ baryons $3/2$ decuplet) using lattice QCD. Nature, at zero temperature, chiral symmetry is spontaneously broken, causing ground states to have different masses. However, expected be restored (for massless quarks) around crossover implying that two opposite parity should become degenerate. Here study what happens in a temperature range which includes both hadronic quark gluon...

In order to study the fate of mesons in thermal QCD at finite baryon chemical potential, we consider light mesonic correlation functions using Taylor expansion ${\cal O}((\mu/T)^2)$, both hadronic and quark-gluon plasma phases. We use FASTSUM anisotropic fixed-scale lattices with $N_f = 2+1$ flavours Wilson fermion. find that correlators are sensitive finite-density corrections second-order terms indicate chiral crossover vector axial-vector channels.

At zero temperature the negative-parity ground states of nucleon and delta baryons are non-degenerate with positive-parity partners due to spontaneous breaking chiral symmetry. However, symmetry is expected be restored at sufficiently high temperature, in particular when going from hadronic quark-gluon plasma (QGP) phase. This would imply that channels opposite parity become degenerate. We study (spin $1/2$) $\Delta$ $3/2$) both sectors using lattice QCD. The range temperatures spans QGP...

Baryonic correlation functions provide an ideal tool to study parity doubling and chiral symmetry using lattice simulations. We present a $2+1$ flavors of anisotropic Wilson clover fermions on the FASTSUM ensembles find clear evidence that emerges in quark-gluon plasma. This result is confirmed level spectral functions, which are obtained MEM reconstruction. further highlight importance Gaussian smearing this study.

We analyse the behaviour of hyperons with strangeness S = –1,–2,–3 in hadronic and quark gluon plasma phases, particular interest parity doubling its emergence as temperature grows. This study uses our FASTSUM anisotropic Nf 2+1 ensembles, four temperatures below above deconfinement transition temperature, Tc . The positive-parity groundstate masses are found to be largely independent , whereas negative-parity ones decrease considerably increases. Close transition, almost degenerate, line...

We study the spectrum of light baryons and hyperons as a function temperature using lattice gauge theory methods. find that masses positive parity states are independent, within errors, in hadronic phase. The negative decrease mass increases. Above deconfining temperature, correlators spectral functions show degeneracy between sectors, i.e. doubling. apply our findings to an in-medium Hadron Resonance Gas model. techniques used this include direct analysis correlation functions, conventional...