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32 papers found.
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Chiral dynamics, S-wave contributions and angular analysis in \(D\rightarrow \pi \pi \ell \bar{\nu }\)

We present a theoretical analysis of the \(D^-\rightarrow \pi ^+\pi ^- \ell \bar{\nu }\) and \(\bar{D}^0\rightarrow \pi ^+\pi ^0 \ell \bar{\nu }\) decays. We construct a general angular distribution which can include arbitrary partial waves of \(\pi \pi \). Retaining the S-wave and P-wave contributions we study the branching ratios, forward–backward asymmetries and a few other ...

Particle segmentation algorithm for flexible single particle reconstruction

As single particle cryo-electron microscopy has evolved to a new era of atomic resolution, sample heterogeneity still imposes a major limit to the resolution of many macromolecular complexes, especially those with continuous conformational flexibility. Here, we describe a particle segmentation algorithm towards solving structures of molecules composed of several parts that are ...

Robust optimization for volume variation in timber processing

Volume variation is an uncertainty element which affects timber processing. We studied the volume variation of logs caused by quality defects in traditional timber processing and set up an optimization approach, using a robust optimization method. We used total number of acceptable boards produced to study the relationship between board thickness and raw material logs, using a ...

Pre-computed Region Guardian Sets Based Reverse kNN Queries

all existed algorithms. Acknowledgements Research of Wei Wang is supported by ARC DP130103401 and DP130103405. Muhammad Aamir Cheema is supported by ARC DE130101002 and DP130103405. Open Access This

\(B_c\rightarrow B_{sJ}\) form factors and \(B_c\) decays into \(B_{sJ}\) in covariant light-front approach

We suggest to study the \(B_{s}\) and its excitations \(B_{sJ}\) in the \(B_c\) decays. We calculate the \(B_c\rightarrow B_{sJ}\) and \(B_c\rightarrow B_{J}\) form factors within the covariant light-front quark model, where the \(B_{sJ}\) and \(B_{J}\) denote an s-wave or p-wave \(\bar{b}s\) and \(\bar{b}d\) meson, respectively. The form factors at \(q^2=0\) are directly computed ...

Production of \(a_1\) in heavy meson decays

Eur. Phys. J. C Production of a1 in heavy meson decays Wei Wang 0 1 Zhen-Xing Zhao 1 0 State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences

Radiative leptonic \(B_c\rightarrow \gamma \ell {\bar{\nu }}\) decay in effective field theory beyond leading order

We study the radiative leptonic \(B_c\rightarrow \gamma \ell {\bar{\nu }}\) decays in nonrelativistic QCD effective field theory, and we explore the contribution from a fast-moving photon. As a result, interactions between the photon and the heavy quarks can be integrated out, resulting in the factorization formula for the decay amplitude. We calculate not only the relevant ...

Conformal complex singlet extension of the Standard Model: scenario for dark matter and a second Higgs boson

We consider a conformal complex singlet extension of the Standard Model with a Higgs portal interaction. The global U(1) symmetry of the complex singlet can be either broken or unbroken and we study each scenario. In the unbroken case, the global U(1) symmetry protects the complex singlet from decaying, leading to an ideal cold dark matter candidate with approximately 100 GeV mass ...

NKCC1 up-regulation contributes to early post-traumatic seizures and increased post-traumatic seizure susceptibility

Traumatic brain injury (TBI) is not only a leading cause for morbidity and mortality in young adults (Bruns and Hauser, Epilepsia 44(Suppl 10):210, 2003), but also a leading cause of seizures. Understanding the seizure-inducing mechanisms of TBI is of the utmost importance, because these seizures are often resistant to traditional first- and second-line anti-seizure treatments. The ...

Trapping and Driving Individual Charged Micro-particles in Fluid with an Electrostatic Device

A variety of micro-tweezers techniques, such as optical tweezers, magnetic tweezers, and dielectrophoresis technique, have been applied intensively in precise characterization of micro/nanoparticles and bio-molecules. They have contributed remarkably in better understanding of working mechanisms of individual sub-cell organelles, proteins, and DNA. In this paper, we present a ...

Combination Therapy Using Chelating Agent and Zinc for Wilson’s Disease

There is no clear international consensus regarding the optimal medication therapy for treating Wilson’s disease (WD). This study systematically reviews the effectiveness of various medication therapies in common use, specifically focusing on preliminary findings concerning the combination of a chelating agent and zinc. A systematic PubMed search was executed to locate original ...

Long-term effect of respiratory training for chronic obstructive pulmonary disease patients at an outpatient clinic: a randomised controlled trial

Objective To assess the effect of respiratory training (RT) on lung function, activity tolerance and acute exacerbation frequency with chronic obstructive pulmonary disease (COPD). Design A randomised controlled trial. Setting Outpatient clinic and home of the COPD patients, Zhengzhou City, China. Subjects Sixty participants with COPD were randomised into two groups: an ...

B s → K (*)ℓ \( \overline{\nu} \) , angular analysis, S-wave contributions and |V ub |

Ulf-G. Meiner 0 1 Wei Wang 1 0 Institute for Advanced Simulation, Institut fur Kernphysik and Julich Center for Hadron Physics , JARA-FAME and JARA-HPC, Forschungszentrum Julich, D-52425 Julich

Symmetric Closed Characteristics on Symmetric Compact Convex Hypersurfaces in \(\mathbf{R}^8\)

University. Wei Wang Partially supported by National Natural Science Foundation of China No. 11222105, Foundation for the Author of National Excellent Doctoral Dissertation of PR China No. 201017. Pingan Zhang

Suboptimal health: a new health dimension for translational medicine

Background One critical premise of disease-related biomarkers is the definition of the counterpart normality. Contrary to pre-clinical models that can be carefully tailored according to scientific need, heterogeneity and uncontrollability is the essence of humans in health studies. Fully characterization of consistent parameters that define the normal population is the basis to ...

Human-centric analysis and interpretation of time series: a perspective of granular computing

In spite of the truly remarkable diversity of models of time series, there is still an evident need to develop constructs whose accuracy and interpretability are carefully identified and reconciled subsequently leading to highly interpretable (human-centric) constructs. While a great deal of research has been devoted to the design of nonlinear numeric models of time series (with an ...

Production of the bottom analogs and the spin partner of the X(3872) at hadron colliders

Using the Monte Carlo event generator tools Pythia and Herwig, we simulate the production of bottom/charm meson and antimeson pairs at hadron colliders in proton–proton/antiproton collisions. With these results, we derive an order-of-magnitude estimate for the production rates of the bottom analogs and the spin partner of the \(X(3872)\) as hadronic molecules at the LHC and ...