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Related papers: Form factors of $\Lambda_b^0 \to \Lambda_c(2595)^+…

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In this article, we calculate the $B\to a_1(1260)$ form-factors $V_1(q^2)$, $V_2(q^2)$, $V_3(q^2)$ and $A(q^2)$ with the $B$-meson light-cone QCD sum rules. Those form-factors are basic parameters in studying the exclusive non-leptonic…

High Energy Physics - Phenomenology · Physics 2008-08-29 Zhi-Gang Wang

We investigate the subleading-power corrections to the exclusive $B\to D \ell \nu_\ell$ form factors at ${\cal O} (\alpha_s^0)$ in the light-cone sum rules (LCSR) framework by including the two- and three-particle higher-twist contributions…

High Energy Physics - Phenomenology · Physics 2022-05-25 Jing Gao , Tobias Huber , Yao Ji , Chao Wang , Yu-Ming Wang , Yan-Bing Wei

We calculate the $\Lambda_b \to \Lambda_c^*(2595) l \nu$ and $\Lambda_b \to \Lambda_c^*(2625) l \nu$ form factors and decay rates for all possible $b \to c l \bar\nu$ four-Fermi interactions in and beyond the Standard Model (SM), including…

High Energy Physics - Phenomenology · Physics 2022-03-07 Michele Papucci , Dean J. Robinson

In this article, the electroweak transition form factors of $\Sigma_b\to\Sigma_c$, $\Xi'_b\to\Xi'_c$ and $\Omega_b\to\Omega_c$ are analyzed within the framework of three-point QCD sum rules. In phenomenological side, all possible couplings…

High Energy Physics - Phenomenology · Physics 2026-05-13 Jie Lu , Guo-Liang Yu , Dian-Yong Chen , Zhi-Gang Wang , Bin Wu

Semileptonic $B$($B_s, B_c$) decays are investigated systematically in the light-cone QCD sum rules. Special emphasis is put on the LCSR calculation on weak form factors with an adequate chiral current correlator, which turns out to be…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tao Huang , Zuo-Hong Li , Xing-Gang Wu , Fen Zuo

We perform the first calculation of form factors in the semileptonic decays $B\!\to\! D_1(2420)\ell\nu_\ell$ and $B \to D_1^\prime (2430)\ell \nu_\ell$ using QCD light-cone sum rules (LCSRs) with $B$-meson distribution amplitudes. In this…

High Energy Physics - Phenomenology · Physics 2022-05-20 Nico Gubernari , Alexander Khodjamirian , Rusa Mandal , Thomas Mannel

We calculate the transition form factors that occur in heavy $\Lambda$-type baryon semileptonic decays as e.g. in $\Lambda_{b} \to \Lambda_{c}^{+} + l^{-} + \bar{\nu}_{l} $. We use Bauer-Stech-Wirbel type infinite momentum frame wave…

High Energy Physics - Phenomenology · Physics 2009-10-30 B. König , J. G. Körner , M. Krämer , P. Kroll

We study the polarized $\Lambda_b$ baryon semileptonic decay $\Lambda_b \to \Lambda_cl{\bar\nu}$ using perturbative QCD factorization theorem. In this approach heavy baryon transition form factors are expressed as the convolutions of hard…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hsien-Hung Shih , Shih-Chang Lee , Hsiang-nan Li

In this work, we study the four form-factors $f_1(Q^2)$, $f_2(Q^2)$, $g_1(Q^2)$ and $g_2(Q^2)$ of the $\Sigma \to n$ in the framework of the light-cone QCD sum rules approach up to twist-6 three valence quark light-cone distribution…

High Energy Physics - Phenomenology · Physics 2007-05-23 Z. G. Wang

I present a compilation of results on B->light meson form factors from QCD sum rules on the light-cone.

High Energy Physics - Phenomenology · Physics 2007-05-23 Patricia Ball

We calculate the form factors for weak decays of $B_{(s)}$ and $D_{(s)}$ mesons to light pseudoscalar and vector mesons. To reveal the intimate connection between different decay modes and to be able to perform the calculations in the full…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. Melikhov , B. Stech

In this work, we investigate the $\Lambda_b \to \Lambda$ transition form factors in the perturbative QCD (PQCD) approach, incorporating higher-twist light-cone distribution amplitudes (LCDAs). The resulted form factors show that…

High Energy Physics - Phenomenology · Physics 2026-02-03 Lei Yang , Jia-Jie Han , Qin Chang , Fu-Sheng Yu

We predict contributions of higher $K$-resonances to the radiative rare decays $b\to s\gamma$, in the framework of the QCD sum rules on the light cone, which combines the traditional QCD sum rule method with the description of final state…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. S. Safir

We investigate the semileptonic decays of charmed mesons to light vector mesons within the framework of light-cone sum rules. Our calculation is performed at leading order in QCD coupling, incorporating contributions up to twist-five…

High Energy Physics - Phenomenology · Physics 2025-06-06 Wang Lin , Xiao-En Huang , Shan Cheng , De-Liang Yao

We study the semileptonic decay of its SU(3) partner, the $\Lambda_c \to \Lambda \ell^+ \nu_\ell$ ($\ell = e, \mu$) transition, within the framework of light-cone QCD sum rules (LCSR) by using the distribution amplitudes of heavy…

High Energy Physics - Phenomenology · Physics 2025-10-27 T. M. Aliev , S. Bilmis , M. Savci

We present the first application of QCD light-cone sum rules (LCSRs) with $B_{(s)}$-meson distribution amplitudes to the $B_{(s)}\!\to\! D_{(s)0}^*$ form factors, where $D_{(s)0}^*$ is a charmed scalar meson. We consider two scenarios for…

High Energy Physics - Phenomenology · Physics 2023-12-06 Nico Gubernari , Alexander Khodjamirian , Rusa Mandal , Thomas Mannel

B->gamma e nu transitions have recently been studied in the framework of QCD factorization. The attractiveness of this channel for such an analysis lies in the fact that, at least in the heavy quark limit, the only hadron involved is the B…

High Energy Physics - Phenomenology · Physics 2009-11-10 Patricia Ball , Emi Kou

The form factor of Lambda_b^0 baryons is estimated using 3.46 10^6 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Lambda_c^+ baryons fully reconstructed in the pK-pi+, pK0_S, and Lambda pi+pi+pi- modes,…

High Energy Physics - Experiment · Physics 2008-11-26 The DELPHI Collaboration , J. Abdallah

This article is devoted to calculating the form factors of $B_c \to D^{*}$, $B_c \to D$, $B_c \to D_s^{*}$ and $B_c \to D_s$ transitions in the framework of three-point QCD sum rules. At the QCD side, the contributions of…

High Energy Physics - Phenomenology · Physics 2024-12-09 Bin Wu , Guo-Liang Yu , Zhi-Gang Wang , Ze Zhou , Jie Lu

I give an overview of the QCD sum rule predictions for the form factors of B-meson weak decays to light hadrons (and leptons)

High Energy Physics - Phenomenology · Physics 2007-05-23 V. M. Braun
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