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高能所科技创新论坛第433期
Title: Opportunities and challenges with the future Search for Hidden Particles (SHiP) experiment at the SPS
Speaker: Prof. Richard Jacobsson (CERN), Prof. Massimiliano Ferro-Luzzi (CERN)
Host: Prof. Jianchun Wang
Time: Jan. 26 (Monday), 9:00 AM (Beijing Time)
Location: Main Building A214
Abstract: We will present the opportunities offered by the new intensity-frontier experimental facility BDF/SHiP that was approved by CERN in 2024 for the future physics programme of the upgraded SPS High-Intensity facility in the ECN3 experimental area. The SHiP experiment is designed to operate in beam-dump mode to generically search for Feebly Interacting Particles (FIPs) at the GeV-scale and perform measurements in neutrino physics. BDF/SHiP complements the worldwide program of New Physics searches by exploring a large region of parameter space that cannot be addressed by other experiments, and which reaches several orders of magnitude below existing bounds by efficiently exploiting the currently available 4x10^19 protons per year at 400 GeV for up to 15 years. The SHiP experiment has sensitivity to both decay and scattering signatures of models with feebly interacting particles, such as dark-sector mediators and light dark matter. In neutrino physics, BDF/SHiP can perform unprecedented measurements with tau neutrinos.
In two complementary talks we will introduce the physics motivation and prospects and discuss the experimental and technological challenges of the facility and the detector.
About the Speaker: Richard Jacobsson earned his PhD in Physics from the University of Stockholm, Sweden, in 1996. Between 1991 and 2001, he contributed to the DELPHI experiment at the LEP accelerator at CERN. During the LEP1 phase, his research centered on the search for the Higgs boson, and he served as the on-site responsible person for the electromagnetic calorimeter. At LEP2, he performed measurements of the ZZ production cross-section. From 2000 to 2024, he was a key contributor to the LHCb experiment, where he led the development of the timing, trigger, and readout control systems. He pioneered luminosity levelling and luminosity measurement techniques at the LHC and acted as the commissioning and run coordinator for LHCb from 2008 to 2013. Subsequently, he engaged in the LHCb Upgrade 2 initiative, directing preliminary studies for the electromagnetic calorimeter upgrade. In 2013, Richard co-proposed the Search for Hidden Particles (SHiP) experiment at the SPS. Since 2014, he has served as the project leader, overseeing detector development and co-coordinating the design of the beam facility. He also leads the SHiP team at CERN.
Massimiliano Ferro-Luzzi earned his PhD in Physics from ETH Zurich in 1995. His early research focused on spin-dependent studies of nucleon structure and the development of polarized gas targets internal to storage rings—work that included a four-year period at NIKHEF and the Vrije Universiteit in Amsterdam. In 1998, he joined the LHCb experiment at the LHC and subsequently became a CERN research physicist in July 2000, contributing to the development and construction of LHCb’s silicon vertex detector (VELO). From 2006 to 2011, he served as the LHC Physics Coordinator, playing a leading role in pioneering gaseous targets internal to the LHC. By combining these targets with advanced vertexing techniques, he enabled novel methods for beam-profile monitoring, precise luminosity determination at the LHCb interaction point, and ultimately a rich program of fixed-target physics within LHCb. He later acted as the LHCb detector upgrade coordinator between 2017 and 2020. In 2013, he co-proposed the Search for Hidden Particles (SHiP) experiment at the CERN SPS, which now constitutes the central focus of his research activities.