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Apr 14, 2012
By lucd

We calculate the branching ratios of three pure annihilation type decays in the perturbative QCD approach. The predicted branching ratios are Br(B0→D−sK∗+2)∼6×10−5, Br(Bs→¯D0a02)∼1×10−6 and Br(Bs→D−a+2)∼2×10−6. They are sizable and large enough to b…

The pure annihilation type decays $B^0\rightarrow D_{s}^{-}K_{2}^{*+}…

We calculate the branching ratios of pure annihilation type decays $B^0\rightarrow D_{s}^{-}K_{2}^{*+}$ and $B_s\rightarrow \bar{D}a_{2}$ using the p…
Jan 21, 2008
By yuancz

I congratulate the organizers for a successful workshop, and I thank my colleagues at Belle for their wonderful work that are presented in this talk; special thank to Galina Pakhlova for supplying me the data for making Fig. 3 in this report.

Study of Charmonium(-like) States via ISR at Belle

The cross sections for e+e- to pi+pi-J/psi, pi+pi-psi(2S), K+K-J/psi, DDbar, DDbar pi, D*Dbar, and D*D*bar are measured using data sample collected o…
Feb 21, 2014
By wangwf

We propose a theoretical framework for analyzing three-body hadronic $B$ meson decays based on the perturbative QCD approach. The crucial nonperturbative input is a two-hadron distribution amplitude for final states, whose involved time-like form fa…

Direct CP asymmetries of three-body $B$ decays in perturbative QCD

We propose a theoretical framework for analyzing three-body hadronic $B$ meson decays based on the perturbative QCD approach. The crucial nonperturba…
Jan 30, 2014
By mgrassi
Instrumentation and Detectors

Showering Cosmogenic Muons in A Large Liquid Scintillator

We present the results of FLUKA simulations of the propagation of cosmogenic muons in a 20 kton spherical liquid scintillator detector underneath 700…
Dec 11, 2013
By dupu

Outflows from active galactic nuclei: The BLR-NLR metallicity corre…

The metallicity of active galactic nuclei (AGNs), which can be measured by emission line ratios in their broad and narrow line regions (BLRs and NLRs…
Dec 10, 2013
By zgwang

The $Z_b(10610)$ and $Z_b(10650)$ as axial-vector tetraquark states i…

In this article, we study the axial-vector mesons $Z_b(10610)$ and $Z_b(10650)$ with the $C\gamma_\mu-C\gamma_5$ type and $C\gamma_\mu-C\gamma_\nu$ t…
Jan 02, 2015

Rare $B$ decays using lattice QCD form factors

In this write-up we review and update our recent lattice QCD calculation of $B \to K^*$, $B_s \to \phi$, and $B_s \to K^*$ form factors [arXiv:1310.3…
Apr 30, 2014

Recent progress on the study of the charmoniumlike states

In this article, we review the recent experimental studies on the charmoniumlike states, mainly from the e+e- annihilation experiments BESIII, Belle,…
Nov 10, 2015
By xief

Simulation of the In-flight Background for HXMT/HE

The Hard X-ray Modulation Telescope (HXMT) is a broad band X-ray astronomical satellite from 1 to 250 keV. Understanding the X-ray background in deta…
Jun 23, 2014
By qiutt

Perturbations of Single-field Inflation in Modified Gravity Theory

In this paper, we study the case of single field inflation within the framework of modified gravity theory where the gravity part has an arbitrary fo…
Apr 22, 2015
By xingzz

How to interpret a discovery or null result of the $0ν2β$ decay

The Majorana nature of massive neutrinos will be crucially probed in the next-generation experiments of the neutrinoless double-beta ($0\nu 2\beta$) …
Oct 11, 2018
By wangbin

Studies of $XYZ$ states at BESIII

With about 12 fb$^{-1}$ of collected data useful for the study of $XYZ$ states, BESIII collaboration continues the exploration of these exotic charmo…
Oct 24, 2014
By lingy
Strongly Correlated Electrons

Holographic Superconductor on Q-lattice

We construct the simplest gravitational dual model of a superconductor on Q-lattices. We analyze the condition for the existence of a critical temper…
Jan 07, 2019
By hxchen

QCD sum rule studies on the $s s \bar s \bar s$ tetraquark states wit…

We apply the method of QCD sum rules to study the structure $X$ newly observed by the BESIII Collaboration in the $\phi \eta^\prime$ mass spectrum in…
Oct 30, 2017
By daido

The ALP miracle revisited

We revisit the ALP miracle scenario where the inflaton and dark matter are unified by a single axion-like particle (ALP). We first extend our previou…
Apr 14, 2017
Instrumentation and Detectors

Feasibility study of TPC at electron positron colliders at $Z$ pole …

TPC is a promising technology for the future electron positron colliders. However, its application might be limited at high event rate and high hit o…
Jan 05, 2017
By liying

Charmless $B_{(s)}\to VV$ Decays in Factorization-Assisted Topologi…

Within the factorization-assisted topological-amplitude approach, we studied the 33 charmless $B_{(s)} \to VV$ decays, where $V$ stands for a light v…
Oct 17, 2018
By akira

DIS at small x and hadron-hadron scattering at high energies via the …

We present our analysis on the high energy scattering processes in the framework of the holographic QCD, assuming that the Pomeron exchange gives a d…
Apr 21, 2016
By wangjm

Supermassive Black Holes with High Accretion Rates in Active Galactic…

This paper reports results of the third-year campaign of monitoring super-Eddington accreting massive black holes (SEAMBHs) in active galactic nuclei…
Jan 27, 2019

Direct Reduction of Amplitude

We propose an alternative approach based on series representation to directly reduce multi-loop multi-scale scattering amplitude into set of freely c…
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