2016 Vol. 40, No. 2

Particles and Fields
Further investigation of the model-independent probe of heavy neutral Higgs bosons at LHC Run 2
Yu-Ping Kuang, Hong-Yu Ren, Ling-Hao Xia
2016, 40(2): 023101. doi: 10.1088/1674-1137/40/2/023101
Abstract:
In one of our previous papers, we provided general, effective Higgs interactions for the lightest Higgs boson h (SM-like) and a heavier neutral Higgs boson H based on the effective Lagrangian formulation up to the dim-6 interactions, and then propose...
Survival of charged ρ condensation at high temperature and density
Hao Liu, Lang Yu, Mei Huang
2016, 40(2): 023102. doi: 10.1088/1674-1137/40/2/023102
Abstract:
The charged vector ρ mesons in the presence of external magnetic fields at finite temperature T and chemical potential μ have been investigated in the framework of the Nambu-Jona-Lasinio model. We compute the masses of charged ρ mesons numerically as...
Nuclear Physics
Study of weakly-bound odd-A nuclei with quasiparticle blocking
Xue-Yu Xiong, Jun-Chen Pei, Yi-Nu Zhang, Yi Zhu
2016, 40(2): 024101. doi: 10.1088/1674-1137/40/2/024101
Abstract:
The coordinate-space Hartree-Fock-Bogoliubov (HFB) approach with quasiparticle blocking has been applied to study the odd-A weakly bound nuclei 17,19B and 37Mg, in which halo structures have been reported in experiments. The Skyrme nuclear forces SLy...
Chiral geometry in multiple chiral doublet bands
Hao Zhang, Qibo Chen
2016, 40(2): 024102. doi: 10.1088/1674-1137/40/2/024102
Abstract:
The chiral geometry of multiple chiral doublet bands with identical configuration is discussed for different triaxial deformation parameters γ in the particle rotor model with π h11/2Vh11/2-1. The energy spectra, electromagnetic transition probabi...
Two-dimensional Langevin modeling of fission dynamics of the excited compound nuclei 188Pt, 227Pa and 251Es
H. Eslamizadeh
2016, 40(2): 024103. doi: 10.1088/1674-1137/40/2/024103
Abstract:
A stochastic approach based on one- and two-dimensional Langevin equations is applied to calculate the pre-scission neutron multiplicity, fission probability, anisotropy of fission fragment angular distribution, fission cross section and the evaporat...
Particle and Nuclear Astrophysics and Cosmology
Photonic dark matter portal and quantum physics
S. A. Alavi, F. S. Kazemian
2016, 40(2): 025101. doi: 10.1088/1674-1137/40/2/025101
Abstract:
We study a model of dark matter in which the hidden sector interacts with standard model particles via a hidden photonic portal. We investigate the effects of this new interaction on the hydrogen atom, including the Stark, Zeeman and hyperfine effect...
Detectors, Related Electronics and Experimental Methods
Simulation of natural radioactivity backgrounds in the JUNO central detector
Xin-Ying Li, Zi-Yan Deng, Liang-Jian Wen, Wei-Dong Li, Zheng-Yun You, Chun-Xu Yu, Yu-Mei Zhang, Tao Lin
2016, 40(2): 026001. doi: 10.1088/1674-1137/40/2/026001
Abstract:
The Jiangmen Underground Neutrino Observatory (JUNO) is an experiment proposed to determine the neutrino mass hierarchy and probe the fundamental properties of neutrino oscillation. The JUNO central detector is a spherical liquid scintillator detecto...
Evaluation of new large area PMT with high quantum efficiency
Xiang-Cui Lei, Yue-Kun Heng, Sen Qian, Jing-Kai Xia, Shu-Lin Liu, Zhi Wu, Bao-Jun Yan, Mei-Hang Xu, Zheng Wang, Xiao-Nan Li, Xiang-Dong Ruan, Xiao-Zhuang Wang, Yu-Zhen Yang, Wen-Wen Wang, Can Fang, Feng-Jiao Luo, Jing-Jing Liang, Lu-Ping Yang, Biao Yang
2016, 40(2): 026002. doi: 10.1088/1674-1137/40/2/026002
Abstract:
The neutrino detector of the Jiangmen Underground Neutrino Observatory (JUNO) is designed to use 20 kilotons of liquid scintillator and approximately 16 000 20 inch photomultipliers (PMTs). One of the options is to use the 20 inch R12860 PMT with hig...
Study of tracking efficiency and its systematic uncertainty from J/ψ→pp π+π- at BESIII
Wen-Long Yuan, Xiao-Cong Ai, Xiao-Bin Ji, Shen-Jian Chen, Yao Zhang, Ling-Hui Wu, Liang-Liang Wang, Ye Yuan
2016, 40(2): 026201. doi: 10.1088/1674-1137/40/2/026201
Abstract:
Based on J=ψ events collected with the BESIII detector, with corresponding Monte Carlo samples, the tracking effciency and its systematic uncertainty are studied using a control sample of J/ψ→ppπ+π-. Validation methods and different factors infiuenci...
Improvement of algorithms for digital real-time n-γ discrimination
Song Wang, Peng Xu, Chang-Bing Lu, Yong-Gang Huo, Jun-Jie Zhang
2016, 40(2): 026202. doi: 10.1088/1674-1137/40/2/026202
Abstract:
Three algorithms (the Charge Comparison Method, n-γ Model Analysis and the Centroid Algorithm) have been revised to improve their accuracy and broaden the scope of applications to real-time digital n-γ discrimination. To evaluate the feasibility of t...
Energy response improvement for photon dosimetry using pulse analysis
Zaki Dizaji
2016, 40(2): 026203. doi: 10.1088/1674-1137/40/2/026203
Abstract:
During the last few years, active personal dosimeters have been developed and have replaced passive personal dosimeters in some external monitoring systems, frequently using silicon diode detectors. Incident photons interact with the constituents of ...
Accelerators
ESRF-type lattice design and optimization for the High Energy Photon Source
Gang Xu, Yi Jiao, Yue-Mei Peng
2016, 40(2): 027001. doi: 10.1088/1674-1137/40/2/027001
Abstract:
A new generation of storage ring-based light sources, called diffraction-limited storage rings (DLSRs), with emittance approaching the diffraction limit for multi-keV photons by means of multi-bend achromat lattices, has attracted extensive studies w...
Study of a magnetic alloy-loaded cavity for compact synchrotrons
Hua Shi, Yoshiro Irie
2016, 40(2): 027002. doi: 10.1088/1674-1137/40/2/027002
Abstract:
Magnetic alloy (MA)-loaded cavities have been widely used in compact proton and heavy-ion synchrotrons, and the MA core is the key issue in their development. Chinese-produced MA has never yet been adopted as core material for an MA-loaded cavity. To...
Capacitive beam position monitors for the low-β beam of the Chinese ADS proton linac
Yong Zhang, Jun-Xia Wu, Guang-Yu Zhu, Huan Jia, Zong-Heng Xue, Hai Zheng, Hong-Ming Xie, Xin-Cai Kang, Yuan He, Lin Li, Jean Claude Denard
2016, 40(2): 027003. doi: 10.1088/1674-1137/40/2/027003
Abstract:
Beam Position Monitors (BPMs) for the low-β beam of the Chinese Accelerator Driven Subcritical system (CADS) Proton linac are of the capacitive pick-up type. They provide higher output signals than that of the inductive type. This paper will describe...
Study of medium beta elliptical cavities for CADS
Liangjian Wen, Shenghu Zhang, Yongming Li, Ruoxu Wang, Hao Guo, Cong Zhang, Huan Jia, Tiancai Jiang, Chunlong Li, Yuan He
2016, 40(2): 027004. doi: 10.1088/1674-1137/40/2/027004
Abstract:
The China Accelerator-Driven Sub-critical System (CADS) is a high intensity proton facility to dispose of nuclear waste and generate electric power. CADS is based on a 1.5 GeV, 10 mA CW superconducting (SC) linac as a driver. The high energy section ...
Synchrotron Radiation, Free Electron Lasers, Applications of Nuclear Technology, etc
Optimum angle-cut of collimator for dense objects in high-energy proton radiography
Hai-Bo Xu, Na Zheng
2016, 40(2): 028201. doi: 10.1088/1674-1137/40/2/028201
Abstract:
The use of minus identity lenses with an angle-cut collimator can achieve high contrast images in high-energy proton radiography. This article presents the principles of choosing the angle-cut aperture of the collimator for different energies and obj...
Other
Performance analysis of quantitative phase retrieval method in Zernike phase contrast X-ray microscopy
Heng Chen, Kun Gao, Da-Jiang Wang, Li Song, Zhi-Li Wang
2016, 40(2): 029001. doi: 10.1088/1674-1137/40/2/029001
Abstract:
Since the invention of Zernike phase contrast method in 1930, it has been widely used in optical microscopy and more recently in X-ray microscopy. Considering the image contrast is a mixture of absorption and phase information, we recently have propo...

ISSN 1674-1137 CN 11-5641/O4

Original research articles, Ietters and reviews Covering theory and experiments in the fieids of

  • Particle physics
  • Nuclear physics
  • Particle and nuclear astrophysics
  • Cosmology
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