Monday, November 17
Theoretical Astrophysics Seminars
Location: UCB – Hearst Field Annex B5, 12:10 p.m.
Speaker: Jing Luan (Caltech)
Title: “Historical Heat Responsible for Enceladus’s Plume”
Location: UCB – 402 Old Le Conte, 2:30 p.m.
Speaker: Seyda Ipek (Washington U., Seattle)
Title: CP Violation in Pseudo-Dirac Fermion Oscillations”
Physics Department Colloquium
Location: UCB, 1 Le Conte Hall – 4:15 p.m.
Speaker: David Demille (Yale)
Title: “A Tabletop-scale Probe for TeV Physics: the Electric Dipole Moment of the Electron”
Tuesday, November 18
Berkeley Cosmology Seminars
Location: UCB, Hearst Field Annex B-1 – 1:10 pm
Speaker: Emanuele Castorina, SISSA
Title: “Massive neutrinos and the Large Scale Structures of the Universe”
Abstract: Massive neutrinos have peculiar effects on several observables in current and future redshift surveys. A precise determination of them is crucial not only to constraint properly neutrino masses but also to avoid potential systematic errors in the determination of other cosmological parameters, e.g. the dark energy equation of state. In this talk, after a brief review of linear theory results, I will discuss, with the help of a large suite of N-body simulations, the effect of massive neutrinos on different cosmological probes, like the abundance of massive clusters, the non linear matter power spectrum and its relation to the galaxy power spectrum, redshift space distorsions, and the bispectrum.
Location: UCB – 402 Old Le Conte, 3:40 p.m.
Speaker: Christopher Beem (IAS)
Title: “Chiral Symmetry Algebras in Four and Six Dimensions”
Physics RPM - no RPM today
Wednesday, November 19
Location: LBNL – 50B-4205, noon
Interdisciplinary Instrumentation Colloquium
Location: LBNL – 15-253, 12 p.m.
Speakers: *Cameron Geddes (ATAP): “Measuring the energy-angle spectrum of a single burst of 10^9 gamma rays” / *Azriel Goldschmidt (NS): “Identifying one single barium ion in one ton of xenon” / *Qing Ji (IBT): “Inventing an anti-neutrino generator”
Particle Theory Seminar
Location: LBNL – 50A-5132, 2:00 p.m.
Speaker: Gustavo Tavares (BU)
String Group Meeting – cancelled
Location: LBNL, 50-5026, 3:30 p.m.
Discussion: Cosmological Leverage from the Matter Power Spectrum in the Presence of Baryon and Nonlinear Effects ArXiv #: 1411.3725
Thursday, November 20
Location: UCB, B5 Hearst Field Annex – 12:30 p.m.
Special Particle Theory Seminar
Location: LBNL – 50A-5132, 2:00 p.m.
Speaker: Clifford Cheung (Caltech)
Title: “Accidental Holomorphy in 4D EFTs”
Location: UCB, 2 LeConte Hall, 4:00 p.m.
Speaker: Fiona Harrison (Caltech)
Physics Research Progress Meeting
Location: LBNL – 50A-5132, 4:00 p.m.
Speaker: Gianpaolo Carosi (LLNL)
Title: “The ADMX Experiment“
Abstract: The nature of dark matter is one of the great mysteries of modern physics. Existence of dark matter has been inferred from its gravitational effects over many distance scales, but currently no known particle can account for the observed data. As a result, new particles beyond the standard model have been suggested. The axion is one such particle that was originally devised as a solution to the strong-CP problem in nuclear physics (or the peculiar absence of a measurable electric dipole moment in the neutron). The Axion Dark Matter eXperiment (ADMX), and its sister experiment ADMX-High Frequency (ADMX-HF), are designed to detect axions by using large microwave cavities immersed in a strong magnetic field to resonantly convert the axion’s rest mass into detectable photons. In this talk I will describe the history of axion searches and the ADMX experiment in particular, which ran at LLNL for over a decade before being moved to the University of Washington. I will then discuss the upgrades to the ADMX experiment as it prepares for its upcoming search with orders-of-magnitude greater sensitivity. I will also outline R&D efforts currently being undertaken to expand the search range of ADMX further and ultimately determine if axions are, or are not, the major dark matter component of the Universe.
Friday, November 21
Location: LBNL, 50-5026, 12 p.m.
Speaker: Ryan Cooke (UC Santa Cruz)
Title: “The primordial deuterium abundance and the search for new physics”
Abstract: We are currently in an exciting era of precision cosmology. With the release of the cosmic microwave background data recorded by the Planck satellite, we are now in a position to accurately test the standard model of cosmology and particle physics. In this talk, I will present several precise measurements of the primordial abundance of deuterium – the most accurate measurements to date – derived from redshift ~3 metal-poor damped Lyman-alpha systems. These data have offered a new insight into the physical laws of the Universe just minutes after the Big Bang. Such precise measures, when analyzed in conjunction with the Planck data, now place strong bounds on both the total amount of visible matter in the Universe and the effective number of neutrino species. These data further provide new limits on physics beyond the standard model. I will discuss our ongoing survey to obtain new precision measures of the primordial nuclei in the era of the 30m class telescopes.
Location: SSL, Addition conference room, 3 p.m.
Speaker: Julian Bautista (Univ of Utah)
Title: “Baryon acoustic oscillations in the Lyman-alpha forest of BOSS quasars”