Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ weak decays

Abstract

We analyze the weak decay of doubly-heavy baryon decays into anti-triplets Q with light-cone sum rules. To calculate the decay form factors, both bottom and charmed anti-triplets b and c are described by the same set of leading twist light-cone distribution amplitudes. With the obtained form factors, we perform a phenomenology study on the corresponding semi-leptonic decays. The decay widths are calculated and the branching ratios given in this work are expected to be tested by future experimental data, which will help us to understand the underlying dynamics in doublyheavy baryon decays.

Mass and decay properties of double heavy baryons with a phenomenological potential model

“…To study semilep-tonic decay width of doubly heavy baryons, we use the following relations according to Ref. [25]: (20) which are related to semileptonic decay widths of doubly heavy baryons with states 1/2 to 1/2, 1/2 to 3/2 and also…”

“…As there are more doubly heavy baryons may be confirmed and discovered experimentally in the future, the theoretical studies about them are essential. They need to study from the theoretical investigation based on quark models [5][6][7][8][9][10][11][12][13], Heavy Quark Spin Symmetry [14,15], QCD Sum Rules [16][17][18], lata e-mail: s.rahmani120@gmail.com (corresponding author) tice QCD [19], Light-cone sum rules [20] and Bethe-Salpeter equation approach [21]. Brodsky et al found that the large SELEX value of the isospin splitting of the cc states implies that double charm baryons are very compact [22].…”

Te0.045S0.955PAN composite with high average discharge voltage for Li–S battery

“…Among them, the most serious problem is the "shuttle effect". So far, many strategies have been proposed and developed to address the issue [5][6][7][8][9][10][11][12] . The most popular one is to inhibit the diffusion of polysulfides by increasing the physical and chemical adsorption ability of conventional sulfur-based cathode material, but can only restrain the polysulfides shuttle effect to some extent.…”

Iron(III) Chloride‐Mediated Regio‐ and Stereoselective Chlorosulfonylation of Alkynes and Alkenes with Sodium Sulfinates

“…The X‐ray structure of 3d is shown in Figure . However, strong electron‐donating groups are not compatible in this system, implying a Friedel–Crafts‐type oxidation process ( 3c ) . Functional groups at the meta or ortho positions do not affect the reaction ( 3l – 3n ).…”