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Related papers: Precision study of B^* B\pi coupling for the stati…

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A full coupled-cluster expansion suitable for sparse algebraic operations is developed by expanding the commutators of the Baker-Campbell-Hausdorff series explicitly for cluster operators in binary representations. A full coupled-cluster…

Chemical Physics · Physics 2018-09-13 Enhua Xu , Motoyuki Uejima , Seiichiro L. Ten-no

We study the process gg -> b bbar H+ H- at large tan(beta), where it represents the dominant production mode of charged Higgs boson pairs in a Type II 2-Higgs Doublet Model, including the Minimal Supersymmetric Standard Model. The ability…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Moretti , J. Rathsman

Efficient and bright single photon sources on photonic chips are key to scaling quantum technologies. Spontaneous four wave mixing in micro-ring resonators creates excellent narrowband and tunable photon sources. We experimentally…

Quantum Physics · Physics 2026-02-12 Nathan Moses , Marcus J. Clark , Alex S. Clark , Siddarth K. Joshi , Imad I. Faruque

We present predictions for the suppression of B-mesons using AdS/CFT techniques assuming a strongly coupled quark-gluon plasma at $\sqrt{s_{NN}}=2.76$ TeV for central collisions and $\sqrt{s_{NN}}=5.5$ TeV for various centrality classes. We…

High Energy Physics - Phenomenology · Physics 2020-11-17 B. A. Ngwenya , W. A. Horowitz

Composite Higgs models, where the Higgs boson is identified with the pseudo-Nambu-Goldstone-Boson (pNGB) of a strong sector, typically have light composite fermions (top partners) to account for a light Higgs. This type of models…

High Energy Physics - Phenomenology · Physics 2015-09-01 Aleksandr Azatov , Debtosh Chowdhury , Diptimoy Ghosh , Tirtha Sankar Ray

In this paper, we investigate the HAL QCD potential in the $I=1$ $\pi \pi$ scattering using the hybrid method for all-to-all propagators, in which a propagator is approximated by low-eigenmodes and the remaining high-eigenmode part is…

High Energy Physics - Lattice · Physics 2020-07-15 Yutaro Akahoshi , Sinya Aoki , Tatsumi Aoyama , Takumi Doi , Takaya Miyamoto , Kenji Sasaki

We use a QCD relativistic potential model to compute the strong coupling constant $g$ appearing in the effective Lagrangian which describes the interaction of $0^-$ and $1^-$ $\bar q Q$ states with soft pions in the limit $m_Q \to \infty$.…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. De Fazio

We investigate potentials between pairs of static-light mesons in Nf=2 Lattice QCD, in different spin channels. The question of attraction and repulsion is particularly interesting with respect to the X(3872) charmonium state and charged…

High Energy Physics - Lattice · Physics 2010-11-03 Gunnar Bali , Martin Hetzenegger

We examine how accurately the general HZV couplings, with V=Z,gamma, may be determined by studying e^+e^- --> Hff-bar processes at future e^+e^- linear colliders. By using the optimal-observable method, which makes use of all available…

High Energy Physics - Phenomenology · Physics 2016-09-06 K. Hagiwara , S. Ishihara , J. Kamoshita , B. A. Kniehl

We perform a comprehensive study of the Higgs sector of the Minimal Supersymmetric extension of the Standard Model in the case where all Higgs bosons are rather light, with masses of ${\cal O}(100 GeV)$, and couple maximally to electroweak…

High Energy Physics - Phenomenology · Physics 2009-12-04 E. Boos , A. Djouadi , M. Muhlleitner , A. Vologdin

Measuring the Higgs boson couplings as precisely as possible is one of the major goals of the High Luminosity LHC. We show that the $(b\bar{b})(b\bar{b})$ final state in Higgs boson pair production can be exploited in the boosted regime to…

High Energy Physics - Phenomenology · Physics 2014-08-14 Danilo Enoque Ferreira de Lima , Andreas Papaefstathiou , Michael Spannowsky

We merge heavy quark effective theory with staggered chiral perturbation theory to calculate heavy-light (B, D) meson quantities. We present results at NLO for the $B(D)$ meson decay constant in the partially quenched and full QCD cases,…

High Energy Physics - Lattice · Physics 2009-11-10 C. Aubin , C. Bernard

Rare $b\to s\ell^+\ell^-$ decays provide some of the most sensitive tests of the Standard Model and require precise and systematically improvable hadronic input from lattice QCD. For the phenomenologically important channel $B\to…

Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the $Z$-boson couplings to the first-generation quarks, which are currently constrained from LEP data to a…

High Energy Physics - Phenomenology · Physics 2025-11-13 Krzysztof Mękała , Daniel Jeans , Jürgen Reuter , Junping Tian , Aleksander Filip Żarnecki

We calculate the partial widths of the light Higgs boson in the Littlest Higgs model. The loop-induced Higgs coupling to photon pairs, which is especially sensitive to effects of the new TeV-scale particles running in the loop, can be…

High Energy Physics - Phenomenology · Physics 2007-05-23 Heather E. Logan

We present a study of the B spectrum performed in the framework of Heavy Quark Effective Theory expanded to next-to-leading order in 1/m and non-perturbative in the strong coupling. Our analyses have been performed on Nf=2 lattice gauge…

A precise measurement of the Higgs boson couplings to bottom and top quarks is of paramount importance during the upcoming LHC runs. We present a comprehensive analysis for the Higgs production process in association with a…

High Energy Physics - Phenomenology · Physics 2016-01-27 Niccolo Moretti , Petar Petrov , Stefano Pozzorini , Michael Spannowsky

Finite 't Hooft coupling corrections to multiple physical observables in strongly coupled $N=4$ supersymmetric Yang-Mills plasma are examined, in an attempt to assess the stability of the expansion in inverse powers of the 't Hooft coupling…

High Energy Physics - Theory · Physics 2016-01-20 Sebastian Waeber , Andreas Schaefer , Aleksi Vuorinen , Laurence G. Yaffe

We report a comprehensive set of results for B-meson heavy-to-light transition form factors calculated using a truncation of, and expression for, the transition amplitudes in which all elements are motivated by the study of Dyson-Schwinger…

Nuclear Theory · Physics 2008-11-26 Mikhail A. Ivanov , Jurgen G. Korner , Sergey G. Kovalenko , Craig D. Roberts

The flavour and glue structure of the light scalar mesons in QCD are probed by studying the couplings of the I=0 mesons $\sigma(600)$ and $f_0(980)$ to the operators $\bar{q}q$, $\alpha_s G^2$ and to two photons. The Roy dispersive…

High Energy Physics - Phenomenology · Physics 2015-05-30 B. Moussallam