Supported by the Sun Yat-sen University Science Foundation。
In dark matter coannihilation scenarios,the Sommerfeld effect of coannihilators is usually important in the calculations of dark matter thermal relic abundance.Due to decays of coannihilators,two annihilating coannihi...
Supported partly by the National Natural Science Foundation of China(12205002);the Natural Science Foundation of Anhui Province,China(2108085MA20,2208085MA10);the key Research Foundation of Education Ministry of Anhui Province of China(KJ2021A0061)。
Two near-threshold peaking structures with spin-parities of J^(PC)=0^(++)were recently discovered by the LHCb Collaboration in the invariant mass distribution of the decay process B^(+)→D_(s)^(+)D_(s)^(-)K^(+).In our...
This paper is the extension of our previous work entitled''Searching a systematics for nonfactorizable contributions to B and B^(0)hadronic decays''.Obtaining the factorizable contributions from the spectator-quark mo...
Supported by the National Key Research and Development Program of China(2020YFA0406301);the National Natural Science Foundation of China(12150610461);Jun Gao Sponsored by the National Natural Science Foundation of China(12275173,11835005);Tanmay Maji Supported by the Science and Engineering Research Board(SERB)through the SRG(Start-up Research Grant)of File(SRG/2023/001093)。
We present improved predictions of a class of event-shape distributions called angularity for a contribution from an effective operator in Higgs hadronic decay that suffers from large perturbative uncertainties.In the...
Supported by Ho Chi Minh City University of Technology and Education under Grant T2023-76。
We study the exclusive semileptonic decaysΥ(1S)→B_((c))lν_(l),where t=e,μ,t.The relevant hadronic form factors are calculated using the covariant confined quark model developed previously by our group.We predict t...
Supported by the National Natural Science Foundation of China (11935017,12293060,12293065,12293061,12293062,12293063,12075253,12192264,12175063,12205311,12070131001 (CRC 110 by DFG and NNSFC));the National Key Research and Development Program of China (2020YFA0406400);the Strategic Priority Research Program of Chinese Academy of Sciences (XDB34030302).
We calculate the form factor M(q^(2))for the Dalitz decay J/ψ→γ*(q^(2))η(N_(f)=1)with η(N_(f))being the SU(N_(f))flavor singlet pseudoscalar meson.The difference among the partial widths Г(J/ψ→γη(N_(f)))at d...
Supported by the Higher Education Commission of Pakistan through(NRPU/20-15142)。
We present the angular distribution of the four-fold B→ρ(→ππ)µ^(+)µ^(−) and B→a_(1)(→ρ_(Ⅱ).⊥π)µ^(+)µ^(−) decays in the Standard Model and family non-universal Z'model.At the quark level,these decays are...
Supported by the National Natural Science Foundation of China(12165017)。
In this study,we analyzed masses and decays of triply-heavy pentaquarks QQQnn(Q=b,c)in the unified MIT bag model.We construct the color-spin wave functions of the triply-heavy pentaquarks and use the numerical variati...
Supported in part by the Natural Science Foundation of China(12335003);the Fundamental Research Funds for the Central Universities(lzujbky-2024-oy02,lzujbky-2023-it12)。
There is a long-standing puzzle that the CP violation(CPV)in the baryon systems has never been wellestablished in experiments,while the CPV of mesons have been observed by decades.In this paper,we propose thatthe CpV ...
NIT Durgapur for providing fellowship for their research;the Department of Science and Technology, Govt. of India for providing INSPIRE Fellowship through IF 200277。
Motivated by the recent experimental results of branching fractions for D^(+)_(s)→η^(′)l+v_(l) decays,which deviate from their SM predictions,we hve investigated these decays in W' model and scalar leptoquark model...