舒菁

舒菁是北京大学物理学院的博雅特聘教授。2012年入选青年海外高层次人才引进计划回国工作。2019年因其回国后在粒子物理和宇宙学中关于基本对称性破缺方面引领性的工作(“For his leading research on the breaking of fundamental symmetries in particle physics and cosmology”)，荣获全球华人物理和天文学会颁发的亚洲成就奖，为该奖迄今为止最年轻的获奖人。2020年获得国家杰出青年科学基金资助。

舒菁长期从事粒子物理及宇宙学的研究。回国十年，他在希格斯物理、宇宙早期相变、正反粒子不对称性、暗物质和量子场论方法等多个领域做出了一系列有影响的原创性工作。INSPIRE高能物理数据库统计, 截至2022年4月, 已发表论文76篇，其中包括在物理评论快报（Phys. Rev. Lett.）上发表的12篇论文（2篇入选编辑推荐），Nature Astronomy 1篇，论文总引用4100多次。

科研方向

  • 希格斯物理、CP破坏、电弱对称性破缺机制
  • （超轻）暗物质探测、引力波物理
  • 基于散射振幅的有效场论方法

联系方式

  • 邮箱: jshu@pku.edu.cn

  • 地址: 北京市海淀区成府路209号，邮编：100871

科研动态

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Abstract

A cosmological first-order phase transition is expected to produce a stochastic gravitational wave background. If the phase transition temperature is on the MeV scale, the power spectrum of the induced stochastic gravitational waves peaks around nanohertz frequencies, and can thus be probed with high-precision pulsar timing observations. We search for such a stochastic gravitational wave background with the latest data set of the Parkes Pulsar Timing Array...

Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array (PhysRevLett.127.251303, 2021)

Abstract

We derive the generalized partial wave expansion for N (M) scattering amplitude in terms of spinor helicity variables. The basis amplitudes of the expansion with definite angular momentum j consist of the Poincar´e Clebsch-Gordan coefficients. Moreover, we obtain a series of selection rules that restrict the anomalous dimension matrix of effective operators and how effective operators contribute to some 2 (N) amplitudes at the loop level....

Partial Wave Amplitude Basis and Selection Rules in Effective Field Theories (PhysRevLett.126.011601, 2021)

Abstract

We propose boosted dark matter (BDM) as a possible explanation for the excess of keV electron recoil events observed by XENON1T. BDM particles have velocities much larger than those typical of virialized dark matter, and, as such, BDM-electron scattering can naturally produce keV electron recoils. We show that the required BDM-electron scattering cross sections can be easily realized in a simple model with a heavy vector mediator...

Boosted Dark Matter Interpretation of the XENON1T Excess (Phys. Rev. Lett. 125, 161804, 2020)

Abstract

With high spatial resolution, polarimetric imaging of a supermassive black hole, like M (87 star) or Sgr A(star), by the Event Horizon Telescope can be used to probe the existence of ultralight bosonic particles, such as axions. Such particles can accumulate around a rotating black hole through the superradiance mechanism, forming an axion cloud...

Probing Axions with Event Horizon Telescope Polarimetric Measurements (Phys. Rev. Lett. 124, 061102, 2020 )

新闻摘要

  • 2022.03，我们的文章"Stringent axion constraints with Event Horizon Telescope polarimetric measurements of M87^*" 在 Nature Astronomy 发表, 更多信息参见 理论所新闻; 中国科学报。
  • 2021.12，我们的文章"Constraining Cosmological Phase Transitions with the Parkes Pulsar Timing Array" 在 PRL发表, 并得到编辑推荐，更多信息参见 理论所新闻。
  • 2021.02，我们的文章"Partial Wave Amplitude Basis and Selection Rules in Effective Field Theories" 发表在 PRL。
  • 2020.10，我们的文章 "Boosted Dark Matter Interpretation of the XENON1T Excess" 发表在 PRL. 更多信息参见 理论所新闻。
  • 2020.08，舒菁研究员荣获国家青年科学基金的资助，祝贺！ 见相关报道。
  • 2020.03, 舒菁研究员荣获2019年度亚洲成就奖（the 2019 Achievement in Asia Award (AAA)，Robert T. Poe Prize by the International Organization of Chinese Physicists and Astronomers），表彰其在粒子物理和宇宙学中对基本对称性破缺的前沿研究，祝贺！ 相关报道见 全球华人物理学会（OCPA）新闻, 理论所新闻。