In the heavy quark limit, there are three independent strong axial coupling constants in chiral Lagrangians for ground-state heavy hadrons: g in the meson sector, and g1, g2 in the baryon sector. The coupling g2 is extracted from recent CLEO measurements of Σc → Λcπ to be |g2| = 0.57±0.10, in agreement with the nonrelativistic quark model expectation but in 2σ deviation from the large-Nc argume...

The model recently proposed in Ref.1 is used to derive linear integro– differential equations whose solutions provide reasonable estimates for the momentum distribution and condensate fraction in interacting many–boson system at zero temperature. An advantage of these equations is that they can be employed in the weak coupling regime and beyond. As an example, analytical treatment of the weak c...

In this paper we study quasilinear elliptic equations driven by the double phase operator involving a Choquard term of form −Lp,qa(u)+|u|p−2u+a(x)|u|q−2u=∫RNF(y,u)|x−y|μdyf(x,u)inRN,where Lp,qa is given Lp,qa(u)≔div(|∇u|p−2∇u+a(x)|∇u|q−2∇u),u∈W1,H(RN), 0<μ<N, 1<p<N, p<q<p+αpN, 0≤a(⋅)∈C0,α(RN) with α∈(0,1] and f:RN×R→R continuous function that satisfies subcritical growth. Based on Hardy–Littlew...