Erratum: Hyperon stars in a modified quark meson coupling model [Phys. Rev. C 94 , 035805 (2016)]

Neutron star matter with Δ isobars in a relativistic quark model

“…The modified quark-meson coupling model has been successful in obtaining various bulk properties of symmetric and asymmetric nuclear matter as well as hyperonic matter within the accepted constraints [34][35][36]. We now extend this model to include the ∆ isobars (∆ − , ∆ 0 , ∆ + , ∆ ++ ) along with nucleons and hyperons in neutron star matter under conditions of beta equilibrium and charge neutrality.…”

“…for baryons, one can write the energy correction due to color electric contribution as given in [36]…”

“…This relativistic quark model has been successfully applied to various domains of nuclear and high energy physics including the baryon spectroscopy [30], electromagnetic form factors of nucleons [31], magnetic moments of the octet baryons [32], nucleon structure functions in deep inelastic scattering [33], symmetric [34] and asymmetric [35] nuclear matter. More recently this framework has been used to study the equation of state of neutron star matter with hyperon degrees of freedom and the properties of Λ and Ξ 0 hypernuclei [36,37]. Studies on the effect of the nucleon charge radius on the mass and radius of neutron stars [38] and developing an equation of state within the constraints set by GW170817 observations [39] are some other recent works undertaken using this model.…”

Many-body Forces in Magnetic Neutron Stars

“…In particular, it has been extensively discussed in the literature whether exotic degrees of freedom might populate the core of neutron stars. On the one hand, it is more energetically favorable for the system to populate new degrees of freedom, such as hyperons (Dexheimer & Schramm 2008;Ishizuka et al 2008;Bednarek et al 2012;Fukukawa et al 2015;Gomes et al 2015;Maslov et al 2015;Oertel et al 2015;Lonardoni et al 2015Lonardoni et al , 2016; Biswal et al 2016;Burgio & Zappalà 2016;Chatterjee & Vidana 2016;Mishra et al 2016;Vidaña 2016;Yamamoto et al 2016;Tolos et al 2017); Torres et al 2017), delta isobars (Fong et al 2010;Schurhoff et al 2010;Drago et al 2014;Cai et al 2015;Zhu et al 2016), and meson condensates (Ellis et al 1995;Menezes et al 2005;Takahashi 2007;Ohnishi et al 2009;Alford et al 2010;Fernandez et al 2010;Mesquita et al 2010;Mishra et al 2010;Lim et al 2014;Muto et al 2015), in order to lower its Fermi energy (starting at about two times the saturation density). On the other hand, the EoS softening due to the appearance of exotica might turn some nuclear models incompatible with observational data, in particular with the recently measured massive neutron stars.…”

Binary Mixture of Quasi-One-Dimensional Dipolar Bose–Einstein Condensates with Tilted Dipoles

“…Except from few works on single dipolar gases, such as [25] who have considered 2D bright solitons in a dipolar BEC, or [26] who discussed a quasi-2D BEC with tilted dipoles, the studies of dipolar bose mixtures under various orientations of the magnetic moments for strong anisotropies are, to our knowledge, just at their beginning. As a first example, we can cite in particular the work of [27] where one of the key results is that "the long-range repulsion tends to suppress the spatial structure induced by the immiscibility, while the nonlocal attraction helps to enhance it".…”