nucl-th digest · Aug 2, 2018

T_{bbb}

: a three

B -

meson bound state

By solving exactly the Faddeev equations for the bound-state problem of three mesons, we demonstrate that current theoretical predictions pointing to the existence of a deeply-bound doubly bottom axial vector tetraquark lead to the existence of a unique bound state of three

B

mesons. We find that the

B B^{*} B^{*} - B^{*} B^{*} B^{*}

state with quantum numbers

(I) J^{P} = (1/2) 2^{-}

T_{bbb}

, is about 90\,MeV below any possible three

B

-meson threshold for the reported binding of the doubly bottom axial vector tetraquark,

T_{bb}

↳ hep-phnucl-thPLB(2018)·12 citations

Strangeness Neutrality and QCD Thermodynamics

Wei-jie Fu🇨🇳 · Jan M. Pawlowski🇩🇪 · Fabian Rennecke🇺🇸

Since the incident nuclei in heavy-ion collisions do not carry strangeness, the global net strangeness of the detected hadrons has to vanish. We investigate the impact of strangeness neutrality on the phase structure and thermodynamics of QCD at finite baryon and strangeness chemical potential. To this end, we study the low-energy sector of QCD within a Polyakov loop enhanced quark-meson effective theory with 2+1 dynamical quark flavors. Non-perturbative quantum, thermal, and density fluctuations are taken into account with the functional renormalization group. We show that the impact of strangeness neutrality on thermodynamic quantities such as the equation of state is sizable.

↳ hep-phnucl-thSciPost Phys.Core(2020)·60 citations

Thursday·August 2, 2018

$T_{bbb}$ : a three $B -$ meson bound state

Strangeness Neutrality and QCD Thermodynamics

Affiliations

Tbbb​: a three B−meson bound state

Strangeness Neutrality and QCD Thermodynamics

Affiliations

$T_{bbb}$ : a three $B -$ meson bound state