Conveners
Plenary: Plenary 1
- Mu-Chun Chen (University of California - Irvine)
Plenary: Plenary 2
- Arvind Rajaraman (University of California)
Plenary: Plenary
- Shirley Li (UC Irvine)
Plenary
- Michael Ratz
Plenary
- Tim M.P. Tait (University of California, Irvine)
Plenary
- Yuri Shirman
Plenary
- Michael Ratz
Plenary
- Yuri Shirman
Plenary
- Arvind Rajaraman (University of California)
Plenary: Plenary 10
- Shirley Li (UC Irvine)
Description
Plenary talks
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Prof. Manfred Lindner (Max-Planck-Institut fuer Kernphysik, Heidelberg, Germany)26/06/2023, 09:30
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Ernest Ma (University of California, Riverside)26/06/2023, 10:00
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Natsumi Nagata26/06/2023, 11:00
Weakly Interacting Massive Particles (WIMPs) in the Universe accumulate in neutron stars (NSs) through their interactions with ordinary matter and their annihilation inside the NS core causes late-time heating. It has been argued that this heating effect maintains the surface temperature of old NSs to be a few thousand K which can be regarded as a smoking gun signature of dark matter (DM)...
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Prof. Stuart Raby (The Ohio State University)26/06/2023, 11:30
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Yikun Wang (California Institute of Technology)26/06/2023, 12:00
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Julian Heeck27/06/2023, 09:00
Upcoming CMB stage-IV experiments have the potential to measure the effective number of relativistic degrees of freedom in the early Universe, Neff, with percent-level accuracy. Many Dirac-neutrino models that aim to address the Dirac stability, the smallness of neutrino masses or the matter-antimatter asymmetry of our universe endow the right-handed partners νR with additional interactions...
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Xiao-Gang He27/06/2023, 09:30
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Yael Shadmi27/06/2023, 10:00
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Graciela Beatriz Gelmini (University of California Los Angeles (US))27/06/2023, 11:00
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Daniel Chung (Unknown)27/06/2023, 11:30
Out of equilibrium axionic sector can generate blue isocurvature perturbations with a rich variety of spectra. Given that future galaxy surveys are probing shorter length scales with a greater accuracy, blue isocurvature perturbations are natural targets for these surveys. After a brief overview of blue axionic perturbations, a Fisher forecast for the Euclid and MegaMapper experiments in...
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Dr Delilah Gates (Princeton)27/06/2023, 12:00
As a black hole tends towards maximal spin the near-horizon region develops a throat-like geometry of divergent proper volume. The development of this throat has consequences on observable phenomena. Herein we will examine two such examples. First we consider adiabatic growth of a black hole within a cloud of particles. For a high-spin black hole this process results in a finite nonzero...
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Keith Dienes28/06/2023, 09:00
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Susha Louise Parameswaran (University of Liverpool)28/06/2023, 09:30
It has proven surprising difficult to obtain a microscopic understanding of Dark Energy within string theory. The two main paradigms, a landscape of de Sitter vacua or slow-roll quintessence, seem to require working at the boundaries of control, which has led to much fruitful debate. I will discuss alternative scenarios for Dark Energy within string theory, in which interacting Dark Sectors...
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Fernando Quevedo28/06/2023, 10:00
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Christopher Verhaaren (Brigham Young University)28/06/2023, 11:00Formal/strings
The gauge bosons of a hidden U(1) sector seems to be one of the simplest extensions of the standard model. However, if this hidden sector includes magnetic charges a host of novel phenomena result. These include new dark matter possibilities with distinctly new way to detect them. I give an overview of some of the phenomena and theoretical understanding that hidden magnetic monopoles provide.
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Dr Ofri Telem (UC Berkeley)28/06/2023, 11:30
Magnetic monopoles and dyons are unique beasts in the zoo of Quantum Field Theory. The long range interaction between monopoles and electric charges generates an extra electromagnetic angular momentum, fundamentally changing the S-matrix for their scattering.
Though the effective field theory of Dirac monopoles and charges has been known since the ‘70, its Hilbert space has only been...
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Dr Daniel Harlow (MIT)28/06/2023, 12:00
In the last decade our understanding of holography has reached the point where a resolution of Hawking's black hole information problem seems to be in reach. In this talk I'll give a high-level overview of where we are now.
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Dr Chanda Prescod-Weinstein (University of New Hampshire)29/06/2023, 09:00
In this talk, I will motivate why in the 2020s so many of us are focusing on astrophysics and cosmology as an important tool for studying one of the most challenging questions in all of particle physics: determining what exactly dark matter is comprised of. I will focus most especially on questions relating to large-scale structure an axion-like particle models, as well as on asymmetric dark...
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Ryuichiro Kitano29/06/2023, 09:30
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Ferruccio Feruglio29/06/2023, 10:00
Solutions of the strong CP problem based on modular invariance are discussed in several frameworks.
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Hans Peter Nilles (Institut fuer Theoretische Physik)29/06/2023, 11:00
Modular transformations of string theory are shown to play a crucial role in the discussion of discrete flavor symmetries in the Standard Model. They include CP transformations and provide a unification of CP with traditional flavor symmetries within the framework of the eclectic flavor scheme. The unified flavor group is non-universal in moduli space and exhibits the phenomenon of "Local...
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Saul Ramos-Sanchez (UNAM, Mexico)29/06/2023, 11:30
Semi-realistic string models offer a plausible path to uncover the flavor structure of particle physics, which improves over models based on pure traditional or pure modular flavor symmetries. Interestingly, the eclectic flavor picture they exhibit, leads to realistic patterns of fermion masses and mixings, which depend on a modulus and matter-field configuration. Further, string models...
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Lisa Everett29/06/2023, 12:00
We discuss recent model-building directions within the general kinetic mixing/vector portal dark matter paradigm in which the portal matter is embedded together with the second and third generation Standard Model leptons in irreducible representations of a non-Abelian dark sector gauge group.
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Ryan Keeley (UC Merced)30/06/2023, 09:00
What has everyone so excited about the H0 tension is the potential for discovering new physics. In particular, the question of new physics explanations for this tension are often divided into whether the new physics plays a role at high redshift or low redshift. In this talk, I will make the case that there can be no low-redshift solution to the H0 tension. To robustly answer this question, I...
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PQ Hung30/06/2023, 09:30
A unified dynamical model of dark energy and inflation is presented, in which both phenomena are driven by axion-like fields-quintessences-of spontaneously broken global U(1)’s symmetries whose potentials are induced by instantons of the QCD gauge group SU(3)c for inflation and of a new strongly interacting gauge group SU(2)Z for dark energy. It is shown that SU(3)c and SU(2)Z fit snugly into...
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Prof. Kimberly Boddy (University of Texas at Austin)30/06/2023, 10:00
Pulsar timing array experiments aim to detect nHz-frequency gravitational waves using high-precision timing of millisecond pulsars. Of particular interest is a stochastic gravitational wave background (SGWB), which is expected to arise predominantly from a population of inspiraling supermassive black hole binaries, but there may also be contributions from exotic cosmological sources, such as...
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Sebastian Trojanowski30/06/2023, 11:00
The ongoing LHC Run 3 has initiated a novel BSM and neutrino physics program at the LHC in its far-forward region. While dedicated detectors FASER and SND@LHC are already taking data this could be further significantly extended during the HL-LHC era with the proposed Forward Physics Facility (FPF). In the talk I will summarize the physics opportunities of this new research direction with an...
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Dave Casper (University of California Irvine (US))30/06/2023, 11:30
FASER, the ForwArd Search ExpeRiment, is an LHC experiment located 480 m downstream of the ATLAS interaction point, along the beam collision axis. FASER and its sub-detector FASERnu have two physics goals: (1) to search for new light and very weakly-interacting particles, and (2) to detect and study TeV-energy neutrinos, the most energetic neutrinos ever detected from a human-made source....
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Shufang Su (University of Arizona)30/06/2023, 12:00
FASER, the ForwArd Search ExpeRiment, is a currently operating experiment at the Large Hadron Collider (LHC) that can detect light long-lived particles produced in the forward region of the LHC interacting point. In this paper, we study the prospect of detecting light CP-even and CP-odd scalars at FASER and FASER 2. Considering a model-independent framework describing the most general...
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PQ Hung30/06/2023, 12:30