Galactic Route to the Strong Coupling Constant αs(mz) and Its Implication on the Mass Constituents of the Universe

Some fundamental physical quantities need an alternative description. We derive the word average value of interaction coupling constant αs(mz) from the observed maximum galactic rotation velocity by the simple relation , where is the velocity, at which the difference between galactic rotation velocity and Thomas precession is equal, and α is Sommerfeld’s constant. The result is in excellent agreement with the value of αs = 0.1170 ± 0.0019, recently measured and verified via QCE analysis by CERN researchers. One can formulate a reciprocity relation, connecting αs with the circle constant: . It is the merit of Preston Guynn to derive the Milky Way maximum value of the galactic rotation velocity βg, pointing to its “extremely important role in all physics”. The mass (energy) constituents of the Universe follow a golden mean hierarchy and can simply be related to the maximum of Guynn’s difference velocity respectively to αs(mz), therewith excellently confirming Bouchet’s WMAP data analysis. We conclude once more that the golden mean concept is the leading one of nature.

Study of spin sum rules (and the strong coupling constant at large distances)

We present recent results from Jefferson Lab on sum rules related to the spin structure of the nucleon. We then discuss how the Bjorken sum rule with its connection to the Gerasimov-Drell-Hearn sum, allows us to conveniently define an effective coupling for the strong force at all distances.

Strong Coupling Constants of the Doubly Heavy Spin-1/2 Baryons with Light Pseudoscalar Mesons

The strong coupling constants of hadronic multiplets are fundamental parameters which carry information about the strong interactions among participating particles.These parameters can help us construct the hadron-hadron strong potential and gain information about the structure of the involved hadrons.Motivated by the recent observation of the doubly charmed cc state by LHCb,we determine the strong coupling constants among the doubly heavy spin-1/2 baryons, Ξ_(QQ′)/(′),Ω_(QQ′)/(′) and light pseudoscalar mesons,π,κ,η and η′within the framework of the light cone QCD sum rules.The obtained results may help experimental groups in analysis of the related data at hadron colliders.

Strong vertices of bottom mesons B and B^(*) and bottomonia Υ,ηb

In this study,the strong coupling constants of vertices BBΥ,BB^(∗)Υ,B^(∗)B^(∗)Υ,BB^(∗)ηb,and B^(∗)B^(∗)ηb are analyzed in the framework of QCD sum rules.All possible off-shell cases and the contributions of vacuum condensate terms including<qq>,<(qgsσGq>,<g_(s)^(2)G^(2)>,<f^(3)G^(3)>,and<qq><g_(s)^(2)G^(2)>are considered.The momentum dependent strong coupling constants are first calculated and then fitted into the analytical function g(Q^(2)),which is extrapolated to time-like regions to obtain the final values of strong coupling constants.The final results are gBBΥ=40.67+7.55−4.20,gBB^(∗)Υ=11.58+2.19−1.09 GeV−1,gB^(∗)B^(∗)Υ=57.02+5.32−5.31,gBB^(∗)ηb=23.39+4.74−2.30,and gB^(∗)B^(∗)ηb=12.49+2.12−1.35 GeV−1.These strong coupling constants are important input parameters that reflect the dynamic properties of the interactions among the mesons and quarkonia.

Strong vertices of doubly heavy spin-3/2 baryons with light pseudoscalar mesons

The strong coupling constants are basic quantities that carry information on the strong interactions among the baryon and meson multiplets as well as information on the nature and internal structures of the involved hadrons.These parameters are introduced in the transition matrix elements of various decays as main inputs and play key roles in analyses of experimental data including various hadrons.We derive the strong coupling constants among the doubly heavy spin-baryons,and,and light pseudoscalar mesons,π,K,andη,using the light-cone QCD.The values obtained for these constants under study may be used to construct the strong potentials among the doubly heavy spin-3/2 baryons and light pseudoscalar mesons.