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LNS Special Seminars


Friday, June 10, 2016

hosted by:   Prof. Mike Williams

    12:00 PM

    Kolker Room, 26-414

 

Chasing anomalies in the heavy quark sector

Speaker: Dr. Biplab Dey- INFN Milano

 

Abstract: Post Higgs discovery, the Standard Model still continues to be a stubbornly accurate description of particle physics phenomenology. Yet, we know from cosmology and theory considerations that some form of New Physics must exist. In this regard, some very interesting anomalies have recently cropped up in the B-physics sector. Specifically, these pertain to certain tensions in rare b->s transitions, semi-taonic B decays, and Vub/Vcb CKM matrix elements determinations from inclusive and exclusive methods. We will present the latest updates on these measurements and prospects for LHCb Run 2 and Belle II.

 

A pizza lunch will be served to talk attendees.

 



Tuesday, June 21, 2016

hosted by:   Prof. Joe Formaggio

    12:00 PM

    Kolker Room, 26-414

 

Search for a light sterile neutrino at SBL reactor experiments

Speaker: Dr. Yuri Shitov- Royal Holloway, University of London

 

Abstract: Most current neutrino oscillation experimental results are well-explained by the three-neutrino PMNS theory.  However several anomalies in short baseline oscillation data (Reactor Neutrino Anomalies, controversial results in the GALLEX, the SAGE, the LSND, and the MiniBooNE experiments) could be interpreted by invoking a hypothetical fourth neutrino. This fourth neutrino is not involved in the standard model interactions (hence the term "sterile"), but may mix with the standard model neutrinos. The allowed phase space range of this mixing is Dm2 Î[0.1-10] eV2, sin2(2q)Î[0.001-0.01], determined by the global fit of the available experimental data, with best value Dm2 ~ 2 eV2, sin2(2q) ~ 0.1. The recent anomalies have generated a rapidly-growing activity toward experimental tests of the sterile neutrino hypothesis, in many different types of experiments.
This talk reviews short baseline (SBL) reactor experiments, including SOLID, DANSS, Nucifer, STEREO, and the US SBL program. The various reactor projects aim to employ a small neutrino detector (with mass ~ 1-5 t) installed close to reactor (at distances ~ 5-25 m). The comparison of the various experimental techniques will be the main focus of this talk. The current status and expected sensitivities of experiments, as well as the potential applied, commercial applications of the detection techniques will be also discussed.

 

A pizza lunch will be served to talk attendees.

 



Tuesday, July 12, 2016

hosted by:   Dr. Or Hen

    12:00 PM

    Kolker Room, 26-414

 

Tricks and Traps: Low Energy Searches for High Energy Physics

Speaker: Prof. Guy Ron, Hebrew University of Jerusalem

 

Abstract:

Trapped radioactive atoms and ions have become a standard tool of the trade for precision studies of beyond SM physics. β decay studies, in particular, offer the possibility of detecting deviations from standard model predictions of the weak interaction which signal new physics. These 'precision frontier' searches are complementary to the high energy searches performed by the LHC and other high energy/high luminosity facilities.

I will present a general overview of magneto-optical, optical traps, and elec- trostatic traps, and their use for weak interaction studies. I will further present the new Hebrew University trapping program (TRAPLAB), the new MIT led OLIVIA experiment, recent experimental results, and future plans.

 

A pizza lunch will be served to talk attendees.