Semileptonic Decays of B _s ** Mesons into D _{s 1} and D _{s 2} * in HQET

Abstract

In the framework of the heavy quark effective theory, the leading order Isgur-Wise functions relevant to semileptonic decays of the orbitally P -wave excited Bs meson states B * * s , including the newly found narrow Bs1(5830) and B * s2 (5840) states, into the (Ds1( 2536), D * s2 (2573)) doublet are calculated from QCD sum rules. With these universal form factors, the decay rates and branching ratios are also estimated.

$$D_{sJ}(2860)$$ D s J ( 2860 ) from the semileptonic decays of $$B_s$$ B s mesons

“…We shall follow the procedure used in Refs. [23,26,27,34,35], and study the semileptonic decays mentioned above.…”

Design of multi-resonance thermally activated delayed fluorescence materials for organic light-emitting diodes

“…[9] The incorporation of heavy atoms such as bromine, sulfur or selenium has been used as an effective strategy in donor-acceptor TADF emitter design to increase kRISC. [10][11][12][13][14][15][16][17] Multi-resonant (MR-TADF) molecules are a sub-class of TADF emitters that are based on n-and p-doped nanographene that contain atoms such as boron and nitrogen. A small exchange integral and therefore a small DEST is maintained as a result of the opposing resonance effect of these atoms.…”

Thermal quantum correlations of a spin-1/2 Ising–Heisenberg diamond chain with Dzyaloshinskii–Moriya interaction

“…[30,31] Heisenberg spin chain as a simple quantum system has been intensively studied on TE and TQD. [22,[32][33][34][35][36][37] The diamond Heisenberg spin chain is an interesting model in the studies of the Heisenberg spin chains. The experimental results showed that the natural mineral azurite Cu 3 (CO 3 ) 2 (OH) 2 could be regarded as an actual material for the frustrated diamond chain.…”