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相关论文: Effects of Flavor Dependence on Weak Decays of J/p…

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We investigate the effects of flavor dependence on the rare weak decays of $ B_c^{*} $ and $B_s^{*}$ mesons to psuedoscalar and vector mesons in the final state. We use the Bauer-Stech-Wirbel model framework to calculate the flavor…

高能物理 - 唯象学 · 物理学 2019-08-02 Padmapriya R , Rohit Dhir

We present a detailed analysis of the Bc form factors in the BSW framework, by investigating the effects of the flavor dependence on the average transverse quark momentum inside a meson. Branching ratios of two body decays of Bc meson to…

高能物理 - 唯象学 · 物理学 2009-11-06 Rohit Dhir , R. C. Verma

We present a detailed analysis of exclusive semileptonic decays of Bc meson involving pseudoscalar and vector mesons in the BSW framework, by investigating the effects of the flavor dependence on the average transverse quark momentum inside…

高能物理 - 唯象学 · 物理学 2010-11-19 Rohit Dhir , R. C. Verma

We study flavor changing processes $\Upsilon \to B/{\bar B} X_s$ and $J/\psi \to D/{\bar D} X_u$ in the B factories and the Tau-Charm factories. In the standard model, these processes are predicted to be unobservable, so they serve as a…

高能物理 - 唯象学 · 物理学 2007-05-23 Alakabha Datta

The scale of low energy c-cbar and b-bbar cross sections on light hadrons is of great importance to searches for the quark gluon plasma using the heavy-quarkonium suppression signature. Unfortunately, little is known about these…

核理论 · 物理学 2009-11-10 T. Barnes , N. I. Kochelev

In this paper we study the weak decays of $J/\psi$ and $\Upsilon(1S)$. Using the Bethe-Salpeter method, we calculate the hadronic transition amplitude and give the form factors. We find that two new form factors $h_1$ and $h_2$, which do…

高能物理 - 唯象学 · 物理学 2021-11-05 Tianhong Wang , Yue Jiang , Han Yuan , Kan Chai , Guo-Li Wang

We study two-body weak hadronic decays of \psi and Upsilon employing the factorization scheme. Branching ratios for \psi -> PP/PV and \Upsilon -> PP/PV decays in the Cabibbo-angle-enhanced and Cabibbo-angle-suppressed modes are predicted.

高能物理 - 唯象学 · 物理学 2009-10-31 K. K. Sharma , R. C. Verma

Within the framework of transverse-momentum-dependent factorization, we investigate for the first time the impact of a flavor-dependent intrinsic transverse momentum of quarks on the production of $W^{\pm}$ bosons in proton-proton…

高能物理 - 唯象学 · 物理学 2018-11-07 Alessandro Bacchetta , Giuseppe Bozzi , Marco Radici , Mathias Ritzmann , Andrea Signori

We study flavor changing processes $\Upsilon \to B/{\bar B} X_s$ and $J/\psi \to D/{\bar D} X_u$ in the B factories and the Tau-Charm factories. In the standard model, these processes are predicted to be unobservable, so they serve as a…

高能物理 - 唯象学 · 物理学 2009-10-31 Alakabha Datta , Patrick. J. O'Donnell , Sandip Pakvasa , Xinmin Zhang

Motivated by the recent measurements on nonleptonic $J/{\psi}$ weak decays at BESIII and the potential prospects of $J/{\psi}$ meson at the high-luminosity heavy-flavor experiments, the branching ratios of the two-body nonleptonic…

高能物理 - 唯象学 · 物理学 2016-03-06 Junfeng Sun , Lili Chen , Qin Chang , Jinshu Huang , Yueling Yang

The recent measurements by CLEO Collaboration for the inclusive J/Psi and Psi(2S) production in Upsilon(1S) decay and our previous calculation are analyzed. The J/Psi momentum spectrum and the production ratio of Psi(2S) versus J/Psi favour…

高能物理 - 唯象学 · 物理学 2011-03-23 Wei Han , Shi-Yuan Li

The current status of the theory and phenomenology of weak decays of hadrons containing a heavy quark is reviewed. Exclusive semileptonic and rare decays of $B$ mesons are discussed, as well as inclusive decay rates, the semileptonic…

高能物理 - 唯象学 · 物理学 2008-02-03 Matthias Neubert

Inspired by the recent measurements on the $J/{\psi}(1S)$ ${\to}$ $D_{s}{\rho}$, $D_{u}K^{\ast}$ weak decays at BESIII and the potential prospects of the charmonium at the high-luminosity heavy-flavor experiments, we study ${\psi}(1S,2S)$…

高能物理 - 唯象学 · 物理学 2016-03-08 Junfeng Sun , Yueling Yang , Jinshu Huang , Lili Chen , Qin Chang

The production of J /{\psi} and {\Upsilon} mesons is studied in pp collisions at \surds = 7 TeV with the CMS experiment at the LHC. The J /{\psi} measurement is based on a dimuon sample corresponding to an integrated luminosity of 314…

高能物理 - 实验 · 物理学 2011-09-07 Bora Akgün

Motivated by the prospects of the potential ${\Upsilon}(1S)$ particle at high-luminosity heavy-flavor experiments, we studied the ${\Upsilon}(1S)$ ${\to}$ $B_{c}M$ weak decays, where $M$ $=$ ${\pi}$, ${\rho}$, $K^{(\ast)}$. The…

高能物理 - 唯象学 · 物理学 2016-10-24 Junfeng Sun , Lili Chen , Na Wang , Qin Chang , Jinshu Huang , Yueling Yang

Within the Standard Model, we investigate the semi-leptonic weak decays of $J/\psi$. The various form factors of $J/\psi$ transiting to a single charmed meson ($D^{(*)}_{(d,s)}$) are studied in the framework of the QCD sum rules. These form…

高能物理 - 唯象学 · 物理学 2008-11-26 Yu-Ming Wang , Hao Zou , Zheng-Tao Wei , Xue-Qian Li , Cai-Dian Lü

The semileptonic decay of heavy flavor mesons offers a clean environment for extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, which describes the CP-violating and flavor changing process in the Standard Model. The involved…

高能物理 - 唯象学 · 物理学 2021-03-17 Lu Zhang , Xian-Wei Kang , Xin-Heng Guo , Ling-Yun Dai , Tao Luo , Chao Wang

Theoretical predictions for B decay rates are rewritten in terms of the Upsilon(1S) meson mass instead of the b quark mass, using a modified perturbation expansion. The theoretical consistency of this expansion is shown both at low and high…

高能物理 - 唯象学 · 物理学 2009-10-31 Andre H. Hoang , Zoltan Ligeti , Aneesh V. Manohar

We investigate the non-trivial 3-momentum effects on the masses of heavy quarkonium states that are moving in a hot medium using QCD sum rules. For all charmonium states, we observe a negative mass shift near $T_c$ that is less than 3$\%$…

高能物理 - 唯象学 · 物理学 2023-06-14 HyungJoo Kim , Seokwoo Yeo , Sungtae Cho , Su Houng Lee

The semileptonic decays of $B_q$ mesons ($q=u,d,s$) to $J^P=2^+$ charmed mesons are investigated. The form factors parametrising the hadronic matrix elements of the weak vector and axial-vector quark currents are evaluated using light-cone…

高能物理 - 唯象学 · 物理学 2026-04-30 Pietro Colangelo , Fulvia De Fazio , Carlo la Torre , Giuseppe Roselli
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