Lunchtime Seminars


 

Tuesdays  |  12:00 PM  |  Kolker Room, 26-414

 

Committee: Gunther Roland, Chair ~ Douglas Hasell

 


Adi Ashkenazi, MIT

Probing ν Interactions for ν Physics

Abstract: The ability of current and next generation accelerator based neutrino oscillation measurements to reach their desired sensitivity requires a high-level of understanding of neutrino-nucleus interactions. These include precise estimation of the relevant cross sections and the reconstruction of the incident neutrino energy from the measured final state particles. Neutrino energies are inferred from the charged particles produced following their interactions with atomic nuclei. Incomplete understanding of these interactions can skew the reconstructed neutrino spectrum and thereby bias the extraction of fundamental oscillation parameters and searches for new physics. In this talk I will present results for the MicroBooNE experiment of the first exclusive differential cross section measurement using neutrino-Argon Quasi Elastic like interactions. In addition, using wide phase-space electron scattering data, collected using the CLAS spectrometer at the Thomas Jefferson National Accelerator Facility (JLab), the reconstruction of the incoming lepton energy from the measured final state is being tested. Disagreements with current event generators, used in the analysis of neutrino oscillation measurements, are observed which indicate underestimation of nuclear effects. The impact of these findings on bias in oscillation analyses will be discussed.

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50)


 

 


Presidents' Day adjusted schedule- No Talk This Week


 



Yi Chen, MIT

Probing the Quark-Gluon Plasma with Jet Substructure in Heavy Ion Collisions

Abstract: During ultra-relativistic heavy ion collisions, a dense QCD matter is formed. This colored, hot, and dense quark-gluon plasma (QGP) interacts and modifies the evolution of hard partons which later manifest themselves into jets in experiments. The loss of energy by jets, known as jet quenching, is an excellent phenomenon we can use to probe the properties of QGP. As jets are large and composite objects, there is a lot of information available: not only in the total energy loss but also in the modification of large scale structures inside the jet. At the LHC, the experiments have successfully collected a large amount of PbPb and pPb collision data which allows us to study the QGP in greater detail than before. Recent measurements on jet measurements using substructure techniques will be discussed.

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



TBA

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



TBA

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



Kyungseon Joo, University of Connecticut

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



Spring Break- No Talk This Week


 



Carlos Delgado, MIT

TBA

Abstract: TBA.

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



Jay, Hyun Jo, Yale University

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.


 



Patriots Day adjusted schedule - No Talk This Week


 



TBA

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



Ivica Friščič, MIT

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)


 



TBA

TBA

Abstract: TBA

time:    Noon
place:   Kolker Room (26-414)


(Lunch will be served at 11:50 a.m.)