To date, LHC searches have provided no definitive evidence for physics beyond the Standard Model (BSM). What if we’re looking in the wrong place? Long-lived particles (LLPs) arise from a variety of well-motivated BSM theories.

# Events Archive

## High Energy Experiment Seminar

### HEP-Dicke Candidate-Kiley Kennedy-Columbia-"Spotlight on Supersymmetry at the LHC: The First ATLAS Search for Displaced and Delayed Diphoton Resonances"

### High Energy Physics Seminar- Xin Qian-BNL-"Search for an Anomalous Excess in Neutrino-Induced Interactions in the MicroBooNE Liquid Argon Time Projection Chamber"

The MicroBooNE experiment was designed primarily to explore the nature of the previously observed low-energy excess in electron neutrino candidates in the MiniBooNE experiment located in the Booster Neutrino Beamline at Fermi National Accelerator Laboratory.

### High Energy Experiment Seminar-Nan Lu -"Recent CMS results on Higgs boson physics and contribution to Snowmass 2021"

### HEE Seminar- Taylor Faucett-UCI-Physics Learning from Machines Learning

Abstract:

### High Energy Experiment Seminar-Stephane Cooperstein UCSD-"First Evidence for Higgs Boson Decay to Muons"

Abstract: Probing the Higgs boson coupling to the muon is one of the last experimentally accessible frontiers in the direct measurement of Higgs boson couplings at the LHC.

### HET Seminar | Po-Shen Hsin, Caltech | "Lorentz Symmetry Fractionalizations and Dualities in (2+1)d" | Bloomberg Lecture Hall

### HET Seminar | Radu Roiban, Penn State | “Perspectives on the Generally-Relativistic Two-Body Problem from Double Copy & EFT”| Bloomberg Lecture Hall

While the flat space two-body problem is integrable, the generally-relativistic one is not starting at the next-to-leading order.

### HET Seminar | Adam Levine, IAS | “On a Quantum Penrose Inequality” | Bloomberg Hall Physics Library

**Description:** Suggested reading:

Marc Mars, Present Status of the Penrose Inequality, arXiv:0906.5566

Netta Engelhardt and Gary Horowitz, A Holographic Argument for the Penrose Inequality in AdS, arXiv:1903.00555

Quantum Penrose Inequality, arXiv:1908.02755

### HET Seminar | Si Li, IAS; Tsinghua University | “Deforming Holomorphic Chern-Simons at Large N” | Bloomberg Lecture Hall

We describe the coupling of holomorphic Chern-Simons theory at large N with Kodaira-Spencer gravity. This gives a complete description of open-closed string field theory in the topological B-model. We explain an anomaly cancellation mechanism at all loops in perturbation theory in this model.

### HET Seminar | Andrew Turner, MIT | "General F-theory Models with SU(3) x SU(2) x U(1) / Z_6 Symmetry” | Bloomberg Lecture Hall

We construct a general form for an F-theory Weierstrass model over any base giving a 6D or 4D supergravity theory with gauge group SU(3) x SU(2) x U(1) / Z_6 and associated generic matter. The concept of 'generic matter' can be rigorously defined in 6D supergravity and generalizes naturally to four dimensions for F-theory models.

### Physics Group at IAS | Greg Moor, Rutgers University | “A brief review of some work on BPS states, wall-crossing, hyperkahler geometry, Hitchin systems, etc.” | Bloomberg Lecture Hall

This talk will give a brief overview focused on six papers written by D. Gaiotto, G. Moore, and A. Neitzke

loosely centered around the topics mentioned in the title. The papers are on the arXiv.

Background reading: Some short reviews are:

https://arxiv.org/pdf/1211.2331....

### HET Seminar | Amit Sever, CERN | "The Holographic Dual of Strongly γ-deformed N=4 SYM Theory" | Bloomberg Lecture Hall

We present a first-principles derivation of a weak-strong duality between the four-dimensional fishnet theory in the planar limit and a discretized string-like model living in AdS5. At strong coupling, the dual description becomes classical and we demonstrate explicitly the classical integrability of the model.

### HEP Seminar - Dr.Catalina Oana Curceanu-The Frascati National Laboratory of the INFN- "The Schroedinger Cat Meets the Neutron Stars: From Exotic Atoms Studies to Impossible Atoms Hunting"

I shall present a series of frontier experiments searching for X rays coming from exotic atoms produced at the DAFNE collider of LNF-INFN (Italy) and from processes violating Quantum Mechanics’ predictions at the Italian Gran Sasso underground laboratory.

### HEP Seminar-Luigi Marchese-Oxford-"Higgs Boson Width at the LHC"

In the Standard Model the Higgs boson is a very narrow resonance and therefore measuring its width is challenging.

### HEP Seminar-Marcelo Vicente-"CMS Phase-2 Calorimeter Trigger Hardware Upgrades"

Technical presentation of the planned hardware upgrades for the CMS backend Calorimeter Trigger during Phase-2 that are being developed at the University of Wisconsin-Madison.

The current state of electronics will be presented and several of the key technical decisions during design specification will be discussed.

### HEP Seminar-Marcelo Vicente-"CMS Phase-2 Calorimeter Trigger Hardware Upgrades"

Technical presentation of the planned hardware upgrades for the CMS backend Calorimeter Trigger during Phase-2 that are being developed at the University of Wisconsin-Madison.

The current state of electronics will be presented and several of the key technical decisions during design specification will be discussed.

### Special Seminar- HEP Dicke Candidate-Yi Jia-MIT-"Precision Measurement of Elementary Particle and Nuclei Fluxes in Cosmic Rays with AMS on the International Space Station" (ISS)

The Alpha Magnetic Spectrometer (AMS) is a general purpose high energy particle detector which was installed on the International Space Station (ISS) on May 19, 2011 to conduct a unique long term mission of fundamental physics research in space.

### Special Seminar- HEP Dicke Candidate-Cecile Caillol-CERN-"Characterization of the Higgs Boson with the CMS Detector"

Abstract: "With the discovery of the Higgs boson by the ATLAS and CMS experiments in 2012, the fundamental question “Does the Higgs boson exist?” was replaced by “Is it really the Higgs boson of the standard model?”.

### HEP Seminar-Oskar Hartbrich-University of Hawaii-"Belle II - First Collisions in a New Particle Physics Experiment at the Intensity Frontier

Abstract

The B factory experiment Belle at the KEKB collider at KEK (Tsukuba, Japan) was built to experimentally investigate CP violation in the B system. Belle and BaBar ultimately confirmed large mixing induced CP violation, leading to the 2008 Nobel Prize in Physics for Kobayashi and Maskawa.

### Computational and Data Science for High Energy Physics (CoDaS-HEP) July 23-27,2018

Advanced software is a critical ingredient to scientific research. Training young researchers in the latest tools and techniques is an essential part of developing the skills required for a successful career both in research and in industry.