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The rare semileptonic Bc-> D_s^* \ell^+ \ell^- decay is studied in the scenario of the universal extra dimension model with a single extra dimension in which inverse of the compactification radius R is the only new parameter. The…

High Energy Physics - Phenomenology · Physics 2012-07-11 U. O. Yilmaz

We investigate the $B \rar K_{0}^{*}(1430) l^+ l^- $ transition in the Applequist-Cheng-Dobrescu model in the presence of a universal extra dimension. In particular, we calculate double lepton polarization asymmetries and branching ratio…

High Energy Physics - Phenomenology · Physics 2011-01-27 B. B. Sirvanli , K. Azizi , Y. Ipekoglu

Using form factors enrolled to the transition matrix elements and calculated via light-cone QCD sum rules including next-to-leading order corrections in the strong coupling constant, we provide a systematic analysis of the $ B_s\rightarrow…

High Energy Physics - Phenomenology · Physics 2015-06-03 V. Bashiry , K. Azizi

We study the rare semileptonic and radiative leptonic B_s decays in the universal extra dimension model. In this scenario, with a single extra dimension, there exists only one new parameter beyond those of the standard model, which is the…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Mohanta , A. K. Giri

We study the radiative dileptonic $B \rar \gamma l^+ l^- $ transition in the presence of a universal extra dimension in the Applequist-Cheng-Dobrescu model. In particular, using the corresponding form factors calculated via light cone QCD…

High Energy Physics - Phenomenology · Physics 2015-06-03 K. Azizi , N. K. Pak , B. B. Sirvanli

We analyze the exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays in the Applequist-Cheng-Dobrescu model, an extension of the Standard Model in presence of universal extra dimensions. In…

High Energy Physics - Phenomenology · Physics 2017-08-23 Fulvia De Fazio

We study some rare B decays induced by $b \to s$ transition within the Standard Model and in the Appelquist-Cheng-Dobrescu model, which is a New Physics scenario with a single universal extra dimension. In particular, we discuss the…

High Energy Physics - Phenomenology · Physics 2007-10-18 Rossella Ferrandes

The rare semileptonic $B_c \rightarrow D_{s,d}\, \ell^+ \ell^-$ decays are studied in the universal extra dimension with a single extra dimension scenario. The sensitivity of differential and total branching ratios, polarization asymmetries…

High Energy Physics - Phenomenology · Physics 2018-07-12 U. O. Yilmaz , E. Danapinar

We study the exclusive (Lambda_b -> \Lambda l^+ l^-) decay in the Appelquist, Chang, Dobrescu model within one universal extra dimension. We investigate the sensitivity of the branching ratio, lepton polarization and forward-backward…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. M. Aliev , M. Savci

Using the related form factors from full QCD which recently are available, we provide a comprehensive analysis of the $\Lambda_b \rightarrow \Lambda \ell^+ \ell^-$ transition in universal extra dimension model in the presence of a single…

High Energy Physics - Phenomenology · Physics 2011-01-27 K. Azizi , N. Katirci

We analyze the exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays in the Applequist-Cheng-Dobrescu model, which is an extension of the Standard Model in presence of universal extra…

High Energy Physics - Phenomenology · Physics 2015-06-25 P. Colangelo , F. De Fazio , R. Ferrandes , T. N. Pham

We study the branching fractions and the lepton polarization asymmetries of rare $B \to X_s \tau^+ \tau^-$ and $B \to K^{(*)} \tau^+ \tau^-$ modes within the Standard Model and in the Appelquist-Cheng-Dobrescu model, which is a New Physics…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Colangelo , F. De Fazio , R. Ferrandes , T. N. Pham

We study semileptonic and radiative B decays involving the strange tensor meson K_2^*(1430) in the final state. Using the large energy effective theory (LEET) techniques, we formulate the B \to K_2^* transition form factors in large recoil…

High Energy Physics - Phenomenology · Physics 2009-07-07 Hisaki Hatanaka , Kwei-Chou Yang

We study the double-lepton polarization asymmetries and single and double-lepton polarization forward backward asymmetries of the rare b \to s \ell^+ \ell^- mode within the Standard Model and in the Appelquist-Cheng-Dobrescu model, which is…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. Bashiry , M. Bayar , K. Azizi

After a brief review of the inclusive and exclusive rare semileptonic decays of B mesons in the standard model (SM), an overview of recent theoretical developments in this field is given. New physics effects on various observables such as…

High Energy Physics - Phenomenology · Physics 2009-10-31 Chao-Shang Huang

Decay rate and forward-backward asymmetries in B -> K_{1} l^{+} l ^{-}, K_{1} is the axial vector meson, are calculated in the universal extra dimension (UED) model. The dependence of these physical quantities on the compactification radius…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ishtiaq Ahmed , M. Ali Paracha , M. Jamil Aslam

Exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays are studied within the Applequist-Cheng-Dobrescu model, an extension of the Standard Model in presence of universal extra dimensions.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Fulvia De Fazio

In this article, we assume the two nonets of scalar mesons below and above 1 GeV are all $\bar{q}q$ states, and study the semi-leptonic decays $B\to S\ell^-\bar{\nu}_{\ell}$, $B\to S\ell^+\ell^-$ and $B\to S\bar{\nu}\nu$ both in the…

High Energy Physics - Phenomenology · Physics 2015-08-03 Zhi-Gang Wang

Decay rate, forward-backward asymmetry and polarization asymmetries of final state leptons in B-> K_{1}tau ^{+}tau ^{-}, where K_{1} is the axial vector meson, are calculated in Standard Model and in the universal extra dimension (UED)…

High Energy Physics - Phenomenology · Physics 2008-11-26 Asif Saddique , M. Jamil Aslam , Cai-Dian Lu

We study long-distance effects in rare exclusive semileptonic decays B -> (K, K*) (l+ l-, nu bar{nu}) and analyze dilepton spectra and asymmetries within the framework of the Standard Model. The form factors, describing the meson transition…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. Melikhov , N. Nikitin , S. Simula
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