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Dive into the research topics where N. Zhou is active.

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Featured researches published by N. Zhou.


arXiv: High Energy Physics - Phenomenology | 2014

Simplified Models for Dark Matter and Missing Energy Searches at the LHC

Jalal Abdallah; B. Penning; Caterina Doglioni; Tomer Volansky; Oren Slone; Aielet Efrati; Alessandro Vichi; D. Salek; Yotam Soreq; A. Boveia; Andrea De Simone; Erez Etzion; Kathryn M. Zurek; Antonio Riotto; Giorgio Busoni; Michele Papucci; Thomas G. Rizzo; Itay Yavin; Thomas Jacques; Tongyan Lin; Adi Ashkenazi; Johanna Gramling; Enrico Morgante; Steven Schramm; N. Zhou

The study of collision events with missing energy as searches for the dark matter (DM) component of the Universe are an essential part of the extensive program looking for new physics at the LHC. Given the unknown nature of DM, the interpretation of such searches should be made broad and inclusive. This report reviews the usage of simplified models in the interpretation of missing energy searches. We begin with a brief discussion of the utility and limitation of the effective field theory approach to this problem. The bulk of the report is then devoted to several different simplified models and their signatures, including s-channel and t-channel processes. A common feature of simplified models for DM is the presence of additional particles that mediate the interactions between the Standard Model and the particle that makes up DM. We consider these in detail and emphasize the importance of their inclusion as final states in any coherent interpretation. We also review some of the experimental progress in the field, new signatures, and other aspects of the searches themselves. We conclude with comments and recommendations regarding the use of simplified models in Run-II of the LHC.


Physical Review D | 2013

Mono-everything: Combined limits on dark matter production at colliders from multiple final states

N. Zhou; D. Berge; Daniel Whiteson

Searches for dark matter production at particle colliders are complementary to direct-detection and indirect-detection experiments and especially powerful for small masses, mχ<100  GeV. An important collider dark matter signature is due to the production of a pair of these invisible particles with the initial-state radiation of a standard model particle. Currently, collider searches use individual and nearly orthogonal final states to search for initial-state jets, photons or massive gauge bosons. We combine these results across final states and across experiments to give the strongest current collider-based limits in the context of effective field theories and map these to limits on dark matter interactions with nuclei and to dark matter self-annhiliation.


Physical Review D | 2017

Higgs boson decay to light jets at the LHC

Linda M. Carpenter; Tao Han; Khalida Hendricks; Zhuoni Qian; N. Zhou

We study the Higgs boson


Physical Review D | 2012

Limits on four-top-quark production from the ATLAS same-sign top-quark search

N. Zhou; Daniel Whiteson; Tim M. P. Tait

(h)


Science China-physics Mechanics & Astronomy | 2019

Dark matter direct search sensitivity of the PandaX-4T experiment

Hongguang Zhang; Abdusalam Abdukerim; Wei Chen; Xun Chen; Yunhua Chen; Xiangyi Cui; Binbin Dong; Deqing Fang; Changbo Fu; Karl Giboni; Franco Giuliani; Linhui Gu; Xuyuan Guo; Zhifan Guo; Ke Han; Changda He; Shengming He; Di Huang; Xingtao Huang; Zhou Huang; Peng Ji; XiangDong Ji; Yonglin Ju; Shaoli Li; Yao Li; Heng Lin; Huaxuan Liu; Jianglai Liu; Yugang Ma; Yajun Mao

decay to two light jets at the 14 TeV High-Luminosity-LHC (HL-LHC), where a light jet (


Physical Review D | 2017

Exploring the dark matter inelastic frontier with 79.6 days of PandaX-II data

Xun Chen; Shiyong Wu; Shengming He; Pengwei Xie; Fang Shi; Yu-Gang Ma; Zhifan Guo; Xiangdong Ji; Ke Han; Shaoli Li; Heng Lin; Hongwei Wang; Hongguang Zhang; Karl Giboni; Deqing Fang; Hoernisa Iminniyaz; Mengjiao Xiao; Huaxuan Liu; Xiaopeng Zhou; Abdusalam Abdukerim; Qiuhong Wang; Changbo Fu; Xuyuan Guo; Xingtao Huang; Yajun Mao; Dan Zhang; Qingyu Wu; Yonglin Ju; Franco Giuliani; Xiangyi Cui

j


Physical Review Letters | 2016

Dark Matter Results from First 98.7 Days of Data from the PandaX-II Experiment

Andi Tan; Xiaomei Li; M. Schubnell; Hua Zhang; Pengwei Xie; Fang Shi; Q. Lin; Jianfeng Yue; Xiang Xiao; Xiangdong Ji; Ke Han; Shaoli Li; Hongwei Wang; Xun Chen; Karl Giboni; Xuming Wang; Deqing Fang; Mengjiao Xiao; W. Lorenzon; Huaxuan Liu; Zhou Wang; Manbin Shen; Xiaopeng Zhou; Qiuhong Wang; Changbo Fu; Xuyuan Guo; Xingtao Huang; Yajun Mao; Shiyong Wu; Yonglin Ju

) represents any non-flavor tagged jet from the observational point of view. The decay mode


Physical Review Letters | 2017

Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment

Xiangyi Cui; Binbin Dong; Shiyong Wu; Shengming He; Qinyu Wu; Fang Shi; Di Huang; Zhifan Guo; Xiangdong Ji; Ke Han; Shaoli Li; Heng Lin; Abdusalam Abdukerim; Xun Chen; Karl Giboni; Tianqi Zhang; Deqing Fang; K. Ni; Mengjiao Xiao; Yao Li; Huaxuan Liu; Xiuli Wang; Xiaopeng Zhou; Changda He; Qiuhong Wang; Changbo Fu; Xuyuan Guo; Xingtao Huang; Yajun Mao; Dan Zhang

h\to gg


Physical Review Letters | 2017

Spin-Dependent Weakly-Interacting-Massive-Particle–Nucleon Cross Section Limits from First Data of PandaX-II Experiment

Changbo Fu; Shiyong Wu; Pengwei Xie; Yu-Gang Ma; Jianfeng Yue; Xiangdong Ji; Ke Han; Shaoli Li; Hongwei Wang; Xun Chen; Karl Giboni; Mengjiao Xiao; Huaxuan Liu; Zhou Wang; Xiaopeng Zhou; Qiuhong Wang; Deqing Fang; Xingtao Huang; Yajun Mao; Yonglin Ju; Franco Giuliani; Hongguang Zhang; Jiming Wang; Xiangyi Cui; Andi Tan; Yong Yang; Siguang Wang; Xuming Wang; Meng Wang; Binbin Yan

is chosen as the benchmark since it is the dominant channel in the Standard Model (SM), but the bound obtained is also applicable to the light quarks


arXiv: High Energy Physics - Experiment | 2017

New Particles Working Group Report of the Snowmass 2013 Community Summer Study

Y. Gershtein; M. Luty; M. Narain; L-T Wang; D. Whiteson; Kaustubh Agashe; L. Apanasevich; G. Artoni; A. Avetisyan; Howard Baer; C Bartels; M Bauer; D Berge; M Berggren; S. Bhattacharya; Kevin Black; T. Bose; J. Brau; R. Brock; E Brownson; M Cahill-Rowley; A. Cakir; A. Chaus; T Cohen; B. Coleppa; R. Cotta; N Craig; K Dienes; Bogdan A. Dobrescu; D. Duggan

(j=u,d,s)

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Changbo Fu

Shanghai Jiao Tong University

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Deqing Fang

Chinese Academy of Sciences

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Huaxuan Liu

Shanghai Jiao Tong University

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Karl Giboni

Shanghai Jiao Tong University

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Ke Han

Shanghai Jiao Tong University

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Xun Chen

Shanghai Jiao Tong University

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Shaoli Li

Shanghai Jiao Tong University

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Xiangyi Cui

Shanghai Jiao Tong University

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