Organized by: Prof. Lu Lu

Events During the Week of November 10th through November 16th, 2013

Monday, November 11th, 2013

No events scheduled

Tuesday, November 12th, 2013

A multi-messenger quest for the sources of the highest energy cosmic rays

Time: 2:30 pm

Place: 4274 Chamberlin Hall

Speaker: Foteini Oikonomou, UCL

Abstract: The origin of ultra high energy cosmic rays (UHECRs) remains unknown despite decades of experimental and theoretical research; their discovery will bring to light the nature of the Universe's most violent accelerators. In this talk I will discuss the observable signatures of UHECRs that can be used to constrain the nature and distribution of their yet unknown sources, focusing on the constraints imposed by the arrival direction distribution of the highest energy cosmic rays detected at the Pierre Auger observatory in Argentina. Constraints on the sources of UHECRs may also come from the secondary particles (gamma-rays and neutrinos) that UHECRs produce during their propagation. I will present the results of a search for the signatures of UHECR acceleration in the gamma-ray spectra of blazars and discuss the implications for the detectability of such signatures with current and upcoming gamma-ray instruments.

Host: Markus Ahlers

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Wednesday, November 13th, 2013

No events scheduled

Thursday, November 14th, 2013

The MicroBooNE and ArgoNeuT Liquid Argon Time Projection Chambers

Time: 2:30 pm

Place: 4274 Chamberlin

Speaker: Jonathan Asaadi, Syracuse

Abstract: TBLiquid argon time projection chambers (LArTPC's) provide an extraordinary level of information about the interactions of neutrinos. Amongst the several different efforts ongoing at Fermi National Accelerator Laboratory to develop the liquid argon detector technology and utilize it to study neutrino interactions are the MicroBooNE and ArgoNeuT experiments. The MicroBooNE experiment is a 170 ton total mass LArTPC. MicroBooNE will be deployed in the Booster neutrino beam at Fermilab and is scheduled to start taking data in early 2014. The ArgoNeuT experiment deployed a relatively small 0.7 ton total mass LArTPC in the NuMI neutrino beamline at Fermilab, running from September 2009 to February 2010. The data collected is now being analyzed and used to measure neutrino interaction cross-sections. This talk will present an overview of LArTPC's, the current status of the assembly, installation, and operational readiness of the MicroBooNE detector, as well as ongoing analysis from ArgoNeuT data including a look at neutral current pi0 interactions from the NuMI beam.

Host: Vandenbroucke

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Friday, November 15th, 2013

No events scheduled