Bc∗ meson parameters and radiative decay width within the covariant confined quark model

نویسندگان

چکیده

In this work, we tried to predict the parameters of [Formula: see text] meson. Simple assumptions gave us following text][Formula: text]MeV and (for text]GeV in covariant confined quark model). We calculated widths radiative decays mesons, where compared them with other theoretical works. It was shown that width meson is very sensitive mass as expected less size parameter text].

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vector Quark Model and B Meson Radiative Decay

We study the B meson radiative decay B → Xsγ in the vector quark model. Deviation from the Standard Model arises from the non-unitarity of the charged current KM matrix and related new FCNC interactions. We establish the relation between the non-unitarity of charged current mixing matrix and the mixing among the vector quark and the ordinary quarks. We also make explicitly the close connection ...

متن کامل

QCD radiative corrections to the leptonic decay rate of the Bc meson.

The QCD radiative corrections to the leptonic decay rate of the B c meson are calculated using the formalism of nonrelativistic QCD (NRQCD) to separate short-distance and long-distance effects. The B c decay constant is factored into a sum of NRQCD matrix elements each multiplied by a short-distance coefficient. The short-distance coefficient for the leading matrix element is calculated to orde...

متن کامل

Decays of the Bc Meson in a Relativistic Quark–Meson Model

The semileptonic decay form factors of the double heavy Bc meson provide a unique opportunity to study the strong interactions between two heavy quarks. A fully relativistic model, with effective non-local quark-meson interactions, is used to compute semileptonic decay form factors, for both the Bc and a wide range of other heavy-light mesons. Using these form factors predictions for decay rate...

متن کامل

Radiative and Semileptonic B Meson Decay Spectra

We review semi-inclusive charmless B decays, focussing on threshold logarithmic resumming and on universality of QCD dynamics in radiative and semileptonic decays. e-mail address: [email protected] 1 Semileptonic B decays The precise determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) element Vub with a clear uncertainty remains one of the key goals of the heavy flav...

متن کامل

Decay width of light quark hybrid meson from the lattice . UKQCD Collaboration

Lattice QCD with N f = 2 flavours of sea quark is used to explore the spectrum and decay of a J P C = 1 −+ spin-exotic hybrid meson. We test lattice determination of S-wave decay amplitudes at threshold using b 1 → πω where agreement with data is found. We find a hybrid meson state at 2.2(2) GeV with a partial width to πb 1 of 400(120) MeV and to πf 1 of 90(60) MeV.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Modern Physics

سال: 2023

ISSN: ['0217-751X', '1793-656X']

DOI: https://doi.org/10.1142/s0217751x23500409