Conveners
02-2 - 加速器暗物质/加速器中微子实验
- 震 胡 (清华大学)
- Xin Chen (Tsinghua University)
02-2 - 加速器暗物质/加速器中微子实验
- Xin Chen (Tsinghua University)
- 震 胡 (清华大学)
Dark photons have been well motivated as strong candidates for dark force carriers and light dark matter in the sub-GeV mass range. The DarkSHINE has been proposed as electron-on-fixed target expriment based on the Shanghai SHINE facility, with the aim of detecting the invisible decay of dark photons to light dark matter. This experiment takes advantage of using missing momentum to enhance...
Ref: https://arxiv.org/abs/2306.00641
Results from a wide range of searches targeting different experimental signatures with and without missing transverse momentum ($E^{miss}_T$) are used to constrain a Two-Higgs-Doublet Model (2HDM) with an additional pseudo-scalar mediating the interaction between ordinary and dark matter (2HDM+a). The analyses use up to 139 fb$^{−1}$ of proton-proton...
The Deep Underground Neutrino Experiment (DUNE) will be a world-class neutrino observatory and nucleon decay detector. The DUNE experiment will consist of a far detector to be located about 1.5 km underground at the Sanford Underground Research Facility in South Dakota, USA, at a distance of 1300 km from Fermilab, and a near detector to be located at Fermilab. The far detector will be a...
The lightest neutralino, as the best known supersymmetric (SUSY) WIMP, obtains the required dark matter relic abundance. The searches of lightest neutralino in various SUSY production programs are conducted by the ATLAS experiment. The latest results will be presented. Additionally, the results are interpreted in the context of the 19-parameter phenomenological minimal supersymmetric standard...
BESIII is a symmetric e+e- collider operating at c.m. energy from 2.0 to 4.95 GeV. With the world’s largest data set of J/psi (10 billion), psi(3686) (2.6 billion), and about 25 fb^-1 scan data from 3.77 to 4.95 GeV, various dark sectors produced in e+e- annihilation and meson decay processes can be searched for at BESIII. Axion-like particles (ALPs) are pseudo-Goldstone bosons arising from...
Searches for Majorana Neutrinos at current and future Colliders including muon-muon collider and neutrino-neutrino collider will be presented.
A widely adopted approach to explain the observed small neutrino masses is the so-called SeeSaw mechanism. Many such extensions of the Standard Model predict heavy neutrinos, which can be produced in proton-proton collisions at the Large Hadron Collider. In this talk, recent searches for heavy neutrinos with the ATLAS experiment will be presented.
With 10 billion Jpsi events, 2.7 billion psi(3686) events, and about 25 fb-1 scan samples taken at center of mass energies from 3.7 to 4.95 GeV, the dark photon produced in e+e- annihilation or hadron decay processes have been studied at BESIII. In this talk, we report the search for invisible dark photon using initial state radiation process, Jpsi Dalitz decays, and baryon decays.
The MicroBooNE experiment employs an 85-ton active volume liquid argon time projection chamber to detect neutrinos from both the on-axis Booster Neutrino Beam (BNB) and off-axis Neutrinos at the Main Injector (NuMI) beam. The experiment aims to investigate the short baseline neutrino anomalies, measure neutrino cross sections, and develop the LArTPC hardware and software. In this presentation,...
暗物质及其直接探测是当代物理学的重大基础前沿课题。空间中的暗物质可以与高能粒子发生碰撞，被加速到极高的动能，被称为加速暗物质。加速暗物质研究大大拓展了暗物质研究的质量灵敏区间。暗物质粒子在到达地下实验室前，需要穿过实验室上方的岩石或者下方的地球，与屏蔽层中的粒子发生碰撞，损失能量并改变方向，这种过程被称为地球屏蔽效应。由于目前加速暗物质研究感兴趣区间的截面较高，地球屏蔽效应的计算对加速暗物质研究尤其重要。CDEX合作组对宇宙线加速暗物质和耀变体加速暗物质开展研究，得到了国际上使用固体探测器的暗物质直接探测实验中领先的结果。CDEX合作组开发了包含CJPL附近精确山形的地球屏蔽蒙特卡洛模拟软件包，并支持加速暗物质地球屏蔽效应计算。未来CDEX合作组将进一步对更多加速暗物质情景开展研究，并结合地球屏蔽效应计算软件包开展加速暗物质调制效应研究。
