Results 1 to 10 of about 5,868 (157)

QED factorization of two-body non-leptonic and semi-leptonic B to charm decays [PDF]

Journal of High Energy Physics, 2021
The QCD×QED factorization is studied for two-body non-leptonic and semi-leptonic B decays with heavy-light final states. These non-leptonic decays, like B ¯ s 0 → D s + π − $$ {\overline{B}}_{(s)}^0\to {D}_{(s)}^{+}{\pi}^{-} $$ and B ¯ d 0 → D + K − $$ {\
Martin Beneke, Philipp Böer, Gael Finauri, K. Keri Vos   +3 more
doaj   +3 more sources

QED effects in inclusive semi-leptonic B decays [PDF]

Journal of High Energy Physics, 2023
Abstract We analyse in detail the QED corrections to the total decay width and the moments of the electron energy spectrum of the inclusive semi-leptonic B → X c eν decay. Our calculation includes short-distance electroweak corrections, the complete 𝒪(α) partonic terms and leading-
Ulrich Haisch, Paolo Gambino, Marzia Bordone   +2 more
exaly   +5 more sources

(Semi-) leptonic D() decays at BESIII

Nuclear and Particle Physics Proceedings, 2022
BESIII has collected 2.93 fb-1 of data at 3.773 GeV, and 6.3 fb-1 of data between 4.18 and 4.23 GeV, respectively. We will report precison measurements of the decay constants fDs+ and the CKM matrix elements |Vcs| via D(s)+ -> l+v (l=mu, tau), which are important to test the LQCD calculations and the CKM matrix unitarity.
exaly   +3 more sources

Quantum entanglement and Bell inequality violation in semi-leptonic top decays

Journal of High Energy Physics
Quantum entanglement is a fundamental property of quantum mechanics. Recently, studies have explored entanglement in the t t ¯ $$ t\overline{t} $$ system at the Large Hadron Collider (LHC) when both the top quark and anti-top quark decay leptonically ...
Tao Han, Matthew Low, Tong Arthur Wu
doaj   +2 more sources

Search for the semi-leptonic decays And

Physics Letters, 2023
We search for the semi-leptonic decays Λc+→Λπ+π−e+νe and Λc+→pKS0π−e+νe in a sample of 4.5fb−1 of e+e− annihilation data collected in the center-of-mass energy region between 4.600GeV and 4.699GeV by the BESIII detector at the BEPCII. No significant signals are observed, and the upper limits on the decay branching fractions are set to be B(Λc+→Λπ+π−e ...
Ablikim, M., Achasov, M.N., Adlarson, P., Aliberti, R., Amoroso, A., An, M.R., An, Q., Bai, Y., Bakina, O., Balossino, I., Ban, Y., Batozskaya, V., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bianco, E., Bloms, J., Bortone, A., Boyko, I., Briere, R.A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G.F., Cao, N., Cetin, S.A., Chang, J.F., Chang, T.T., Chang, W.L., Che, G.R., Chelkov, G., Chen, C., Chen, Chao, Chen, G., Chen, H.S., Chen, M.L., Chen, S.J., Chen, S.M., Chen, T., Chen, X.R., Chen, X.T., Chen, Y.B., Chen, Y.Q., Chen, Z.J., Cheng, W.S., Choi, S.K., Chu, X., Cibinetto, G., Coen, S.C., Cossio, F., Cui, J.J., Dai, H.L., Dai, J.P., Dbeyssi, A., de Boer, R.E., Dedovich, D., Deng, Z.Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, B., Ding, X.X., Ding, Y., Ding, Y., Dong, J., Dong, L.Y., Dong, M.Y., Dong, X., Du, S.X., Duan, Z.H., Egorov, P., Fan, Y.L., Fang, J., Fang, S.S., Fang, W.X., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C.Q., Feng, J.H., Fischer, K., Fritsch, M., Fritzsch, C., Fu, C.D., Fu, Y.W., Gao, H., Gao, Y.N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P.T., Ge, Z.W., Geng, C., Gersabeck, E.M., Gilman, A., Goetzen, K., Gong, L., Gong, W.X., Gradl, W., Gramigna, S., Greco, M., Gu, M.H., Gu, Y.T., Guan, C.Y., Guan, Z.L., Guo, A.Q., Guo, L.B., Guo, R.P., Guo, Y.P., Guskov, A., H, X.T., Han, W.Y., Hao, X.Q., Harris, F.A., He, K.K., He, K.L., Heinsius, F.H., Heinz, C.H., Heng, Y.K., Herold, C., Holtmann, T., Hong, P.C., Hou, G.Y., Hou, Y.R., Hou, Z.L., Hu, H.M., Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, K.X., Huang, L.Q., Huang, X.T., Huang, Y.P., Hussain, T., Hüsken, N., Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Jeong, J.H., Ji, Q., Ji, Q.P., Ji, X.B., Ji, X.L., Ji, Y.Y., Jia, Z.K., Jiang, P.C., Jiang, S.S., Jiang, T.J., Jiang, X.S., Jiang, Y., Jiao, J.B., Jiao, Z., Jin, S., Jin, Y., Jing, M.Q., Johansson, T., K, X., Kabana, S., Kalantar-Nayestanaki, N., Kang, X.L., Kang, X.S., Kappert, R., Kavatsyuk, M., Ke, B.C., Khoukaz, A., Kiuchi, R., Kliemt, R., Koch, L., Kolcu, O.B., Kopf, B., Kuessner, M., Kupsc, A., Kühn, W., Lane, J.J., Lange, J.S., Larin, P., Lavania, A., Lavezzi, L., Lei, T.T., Lei, Z.H., Leithoff, H., Lellmann, M., Lenz, T., Li, C., Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H.   +199 more
openaire   +3 more sources

Form Factors for semi-leptonic $B$ decays [PDF]

Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), 2017
13 pages, 2 tables, 6 figures, presented at the 34th annual International Symposium on Lattice Field Theory (Lattice2016), 24-30 July 2016, University of Southampton ...
Flynn, Jonathan, Izubuchi, Taku, Juttner, Andreas, Kawanai, Taichi, Lehner, Christoph, Lizarazo, Edwin, Soni, Amarjit, Tsang, Justus Tobias, Witzel, Oliver   +8 more
openaire   +3 more sources

B → D 0 ∗ $$ B\to {D}_0^{\ast } $$ and B s → D s 0 ∗ $$ {B}_s\to {D}_{s0}^{\ast } $$ form factors from QCD light-cone sum rules

Journal of High Energy Physics, 2023
We present the first application of QCD light-cone sum rules (LCSRs) with B (s)-meson distribution amplitudes to the B s → D s 0 ∗ $$ {B}_{(s)}\to {D}_{(s)0}^{\ast } $$ form factors, where D s 0 ∗ $$ {D}_{(s)0}^{\ast } $$ is a charmed scalar meson.
Nico Gubernari, Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +3 more
doaj   +1 more source

Alternative treatment of the quark mass in the heavy quark expansion

Journal of High Energy Physics, 2023
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays.
Anastasia Boushmelev, Thomas Mannel, K. Keri Vos   +2 more
doaj   +1 more source

(Semi-)leptonic decays of $D_{(s)}$ Mesons at BESIII [PDF]

Proceedings of ALPS 2019 An Alpine LHC Physics Summit — PoS(ALPS2019), 2021
Leptonic and semi-leptonic D decays at BESIII contribute the most precise experimental measurement of |Vcs(d)| and form factor fD(s) in the world based on 2.93 fb−1 and 3.19 fb−1 data taken at center-of-mass energies s√=3.773 and 4.180~GeV, respectively.
openaire   +2 more sources

First extraction of inclusive V cb from q 2 moments

Journal of High Energy Physics, 2022
We present the first determination of V cb from inclusive B → X c ℓ v ¯ ℓ $$ B\to {X}_c \ell {\overline{v}}_{\ell} $$ using moments of the dilepton invariant mass, q 2.
Florian Bernlochner, Matteo Fael, Kevin Olschewsky, Eric Persson, Raynette van Tonder, K. Keri Vos, Maximilian Welsch   +6 more
doaj   +1 more source