W-+ H+- production and CP asymmetry at the LHC

The dominant contributions to W-+ H+- production at the LHC are the tree-level b anti-b annihilation and the gg fusion. We perform for the case of the complex MSSM a complete calculation of the NLO EW corrections to the b anti-b annihilation channel and a consistent combination with other contributions including the standard and SUSY QCD corrections and the gg fusion, with resummation of the leading radiative corrections to the bottom-Higgs couplings and the neutral Higgs-boson propagators. We observe a large CP-violating asymmetry, arising mainly from the gg channel.Comment: 33 pages, 21 figures, a few typos corrected, one reference adde

On the existence and exponential attractivity of a unique positive almost periodic solution to an impulsive hematopoiesis model with delays

In this paper, a generalized model of hematopoiesis with delays and impulses is considered. By employing the contraction mapping principle and a novel type of impulsive delay inequality, we prove the existence of a unique positive almost periodic solution of the model. It is also proved that, under the proposed conditions in this paper, the unique positive almost periodic solution is globally exponentially attractive. A numerical example is given to illustrate the effectiveness of the obtained results.Comment: Accepted for publication in AM

What Makes for an Effective Commune Health Center?

This report, based on the main findings from a large-scale longitudinal study of rural health care in Viet Nam from 2008 to 2016, aims to develop the basic components of effective commune health center (CHC) models for different rural areas in Viet Nam.CHCs form the grassroots public health care system in rural Viet Nam, where two-thirds of the country's people live. The centers provide basic preventive care along with initial diagnoses, treatments and referrals to public hospitals.The report includes:A toolkit for assessing CHCs in different contexts identifying best practicesAn analysis of three models for the effective CHCPolicy recommendations aimed at developing major components of CHC model

NLO electroweak corrections to doubly-polarized W+W−W^+W^- production at the LHC

We present new results of next-to-leading order (NLO) electroweak corrections to doubly-polarized cross sections of $W^+W^-$ production at the LHC. The calculation is performed for the leptonic final state of $e^+\mu_e \mu^- \bar{\nu}_\mu$ using the double-pole approximation in the diboson center-of-mass frame. NLO QCD corrections and subleading contributions from the $gg$, $b\bar{b}$, $\gamma\gamma$ induced processes are taken into account in the numerical results. We found that NLO EW corrections are small for angular distributions but can reach tens of percent for transverse momentum distributions at high energies, e.g. reaching $-40\%$ at $p_{T,e}\approx 300$ GeV. In these high $p_T$ regions, EW corrections are largest for the doubly-transverse mode.Comment: 15 pages, 1 table, 5 figure

HI emission from the red giant Y CVn with the VLA and FAST

Imaging studies with the VLA have revealed HI emission associated with the extended circumstellar shells of red giants. We analyse the spectral map obtained on Y CVn, a J-type carbon star on the AGB. The HI line profiles can be interpreted with a model of a detached shell resulting from the interaction of a stellar outflow with the local interstellar medium. We reproduce the spectral map by introducing a distortion along a direction corresponding to the star's motion in space. We then use this fitting to simulate observations expected from the FAST radiotelescope, and discuss its potential for improving ourdescription of the outer regions of circumstellar shells.Comment: accepted for publication in RA