Sujie Lin
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View article: A proposed deep sea Neutrino Observatory in the Nanhai
A proposed deep sea Neutrino Observatory in the Nanhai Open
Over the past ten years, several breakthroughs have been made in multi-messenger astronomy. Thanks to the IceCube Neutrino Observatory, the detection of astrophysical neutrinos was proved to be practical. However, due to the limited statis…
View article: Determination of dark matter distribution in Ursa Major III and constraints on dark matter annihilation
Determination of dark matter distribution in Ursa Major III and constraints on dark matter annihilation Open
The recently discovered satellite dwarf galaxy Ursa Major III provides a promising opportunity to explore the signatures resulting from dark matter (DM) annihilation, due to its proximity and large J-factor. Owing to the absence of an exce…
View article: Impact of a nearby subhalo on the constraint of dark matter annihilation from cosmic ray antiprotons*
Impact of a nearby subhalo on the constraint of dark matter annihilation from cosmic ray antiprotons* Open
Numerous simulations indicate that a large number of subhalos should be hosted by the Milky Way. The potential existence of a nearby subhalo could have important implications for our understanding of dark matter (DM) annihilation. In this …
View article: A New Scenario of Solar Modulation Model during the Polarity Reversing
A New Scenario of Solar Modulation Model during the Polarity Reversing Open
When entering the heliosphere, galactic cosmic rays (GCRs) will encounter the solar wind plasma, reducing their intensity. This solar modulation effect is strongly affected by the structure of the solar wind and the heliospheric magnetic f…
View article: Impact of a nearby subhalo on the constraint of dark matter annihilation from cosmic ray antiprotons
Impact of a nearby subhalo on the constraint of dark matter annihilation from cosmic ray antiprotons Open
Numerous simulations indicate that a large number of subhalos should be hosted by the Milky Way. The potential existence of a nearby subhalo could have important implications for our understanding of dark matter (DM) annihilation. In this …
View article: Constraining the Neutrino Flux of GRB 221009A with LHAASO Horizontal Events
Constraining the Neutrino Flux of GRB 221009A with LHAASO Horizontal Events Open
The study of cosmic neutrinos with energy 𝐸𝜈 ≥ 1014𝑒𝑉 is one of the most important and challenging\ntasks in multi-messenger astrophysics. Detectors must operate in well shielded laboratories.\nAn alternative is provided by the observation…
View article: Characteristics comparison of the 3-inch photomultipliers from Hamamatsu and NVN for the NEON Neutrino Telescope
Characteristics comparison of the 3-inch photomultipliers from Hamamatsu and NVN for the NEON Neutrino Telescope Open
Neutrino Observatory in the Nanhai (NEON) is a proposed cubic-kilometre scale high-energy neutrino observatory located in the South China Sea. The observatory consists of tens of thousands of optical modules (OMs), where photomultiplier tu…
View article: The mechanic and optical properties of the OM for the NEON neutrino project
The mechanic and optical properties of the OM for the NEON neutrino project Open
The interaction of neutrino and matter can produce charged particles. By detecting the Cherenkov light generated by these charged particles the neutrinos can be observed. We propose a cubic-kilometer scale high-energy neutrino detector loc…
View article: The array simulation of NEON
The array simulation of NEON Open
The observation of high-energy neutrinos from extreme astrophysical sources would substantially broaden our understanding of high-energy phenomena in the universe, and reveal the origin of cosmic rays. A proposed cubic-kilometer scale high…
View article: The reconstruction of NEON
The reconstruction of NEON Open
Neutrino Observatory in the Nanhai (NEON) is a proposed cubic-kilometer scale high-energy neutrino detector located in the South China Sea. One of its primary physical goals is to capture high-energy neutrinos, which could hint at the orig…
View article: Measuring Charge Efficiency of Large PMTs in LHAASO-WCDA using Shower Muons that Hit Small PMTs
Measuring Charge Efficiency of Large PMTs in LHAASO-WCDA using Shower Muons that Hit Small PMTs Open
The Water Cerenkov Detector Array (WCDA) is a component of the Large High Altitude Air Shower Observatory (LHAASO), comprising 3,120 cells, each equipped with a large PMT (8" for pool1 and 20" for pool2 and pool3) and a small PMT (1.5" for…
View article: Probing cosmic ray composition with inclined air showers of LHAASO-KM2A
Probing cosmic ray composition with inclined air showers of LHAASO-KM2A Open
The origin of cosmic ray (CR) spectral knee around ∼4 PeV is unknown. Composition studies\naround the knee can provide information on the CR sources and propagation. LHAASO-KM2A\nis capable of simultaneously measuring the EM and muonic com…
View article: Multi-messenger Study of Galactic Diffuse Emission with LHAASO and IceCube Observations
Multi-messenger Study of Galactic Diffuse Emission with LHAASO and IceCube Observations Open
With the breakthrough in PeV gamma-ray astronomy brought by the LHAASO experiment, the high-energy sky is getting richer than before. Lately, LHAASO Collaboration reported the observation of a gamma-ray diffuse emission with energy up to t…
View article: A New Scenario of Solar Modulation Model during the Polarity Reversing
A New Scenario of Solar Modulation Model during the Polarity Reversing Open
When the Galactic Cosmic Rays (GCRs) entering the heliosphere, they encounter the solar wind plasma, and their intensity is reduced, so-called solar modulation. The modulation is caused by the combination of a few factors, such as particle…
View article: Observation of Horizontal Air Showers with LHAASO-KM2A
Observation of Horizontal Air Showers with LHAASO-KM2A Open
LHAASO-KM2A is a sub-array of the Large High Altitude Air Shower Observatory (LHAASO) with an area of kilometer squared scale, consisting of 5195 electromagnetic detectors and 1171 muon detectors. Horizontal Air Showers (HAS) are a fundame…
View article: Simulating the galactic cosmic ray with non-uniform grids
Simulating the galactic cosmic ray with non-uniform grids Open
The input of local source information and propagation parmeters at a scale of O(10) pc are necessary in order to accurately repeat the large scale 2D anisotropy of cosmic ray from TeV to PeV. However, simulating the CR propagation using th…
View article: Limits on axionlike particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT
Limits on axionlike particles from Mrk 421 with 4.5-year period observations by ARGO-YBJ and Fermi-LAT Open
In this work, we investigate the axion-like particle (ALP)-photon oscillation effect in the spectra of the blazar Markarian 421 (Mrk 421) using 4.5 years of the Astrophysical Radiation with Ground-based Observatory at YangBaJing (ARGO-YBJ)…
View article: Solar modulation of cosmic proton and helium with AMS-02
Solar modulation of cosmic proton and helium with AMS-02 Open
We investigate the solar modulation effect with the long time cosmic ray proton and helium spectrum measured by AMS-02 on the time scale of a Bartels rotation (27 days) between May 2011 and May 2017. The time-span covers the negative helio…
View article: Expected LHAASO sensitivity to decaying dark matter signatures from dwarf galaxies gamma-ray emission *
Expected LHAASO sensitivity to decaying dark matter signatures from dwarf galaxies gamma-ray emission * Open
As a next-generation complex extensive air shower array with a large field of view, the large high altitude air shower observatory (LHAASO) is very sensitive to the very-high-energy gamma rays from ~300 GeV to 1 PeV and may thus serve as a…
View article: Investigating the dark matter signal in the cosmic ray antiproton flux with the machine learning method
Investigating the dark matter signal in the cosmic ray antiproton flux with the machine learning method Open
We investigate the implications on the dark matter (DM) signal from the\nAMS-02 cosmic antiproton flux. Global fits to the data are performed under\ndifferent propagation and hadronic interaction models. The uncertainties from\nthe injecti…
View article: Prospect for dark matter annihilation signatures from gamma-ray observation of dwarf galaxies by LHAASO
Prospect for dark matter annihilation signatures from gamma-ray observation of dwarf galaxies by LHAASO Open
The Large High Altitude Air Shower Observatory (LHAASO) is a next-generation observatory for high energy gamma rays and cosmic rays with wide field of view. It will detect gamma rays with high sensitivity in the energy range from 300 GeV t…
View article: Time-dependent solar modulation of cosmic rays from solar minimum to solar maximum
Time-dependent solar modulation of cosmic rays from solar minimum to solar maximum Open
We study the time-dependent modulation effect and derive the local interstellar spectra (LIS) for the cosmic ray (CR) proton, helium, boron and carbon. A two-dimensional modulation model including the variation of the interplanetary enviro…
View article: Gauged $U(1)_{L_μ-L_τ}$ Scotogenic Model in light of $R_{K^{(*)}}$ Anomaly and AMS-02 Positron Excess
Gauged $U(1)_{L_μ-L_τ}$ Scotogenic Model in light of $R_{K^{(*)}}$ Anomaly and AMS-02 Positron Excess Open
We study the gauged $U(1)_{L_μ-L_τ}$ scotogenic model with emphasis on latest measurement of LHCb $R_{K^{(*)}}$ anomaly and AMS-02 positron excess. In this model, neutrino masses are induced at one-loop level with $Z_2$-odd particles, i.e.…
View article: Study on the 3D anisotropic propagation of Galactic cosmic rays
Study on the 3D anisotropic propagation of Galactic cosmic rays Open
Conventional cosmic-ray propagation models usually assume an isotropic diffusion coefficient to account for the random deflection of cosmic rays by the turbulent interstellar magnetic field. Such a picture is very successful in explaining …
View article: The expectation of LHAASO sensitivity on the cosmic-ray electron
The expectation of LHAASO sensitivity on the cosmic-ray electron Open
The high-energy electrons suffer severe energy loss during their propagation, owing to the Synchrotron and Inverse-Compton processes. Thus, the electrons exceeding TeV are most likely originating from few local sources, such as dark matter…
View article: Perspective on dark matter annihilation limits from the LHAASO gamma-ray observation of dwarf Spheroidal galaxies
Perspective on dark matter annihilation limits from the LHAASO gamma-ray observation of dwarf Spheroidal galaxies Open
The Large High Altitude Air Shower Observatory (LHAASO) is a next generation observatory for high energy gamma-rays and cosmic rays with a wide field of view, which is sensitive to gamma-rays from 300 GeV to 1 PeV. LHAASO is an ideal exper…
View article: Expectations of the Cosmic Antideuteron Flux
Expectations of the Cosmic Antideuteron Flux Open
The cosmic antideuteron is a promising probe for the dark matter annihilation signature. In order to determine the DM signature, the background astrophysical antideuteron flux should be carefully studied. In this work we provide a new calc…
View article: Systematic study on the cosmic ray antiproton flux
Systematic study on the cosmic ray antiproton flux Open
Recently the AMS-02 collaboration has published the measurement of the cosmic antiproton to proton ratio $\bar{p}/p$ and the $\bar{p}$ flux with a high precision up to $\sim 450\,\mathrm{GeV}$. In this work, we perform a systematic analysi…