[Theory-seminars] Seminars next week

[Vincent Mathieu]

Dear all, 
there won’t be a seminar tomorrow. A problem occurred in the booking of Peng Guo’s flights and he’s not able to come to VA today.
We will reschedule his visit for next semester. 
There will still be a seminar by Luka on Wednesday. 
There also will be a colloquium (on LHC) on Wednesday. 
Cheers,
Vincent

----------------------------------------------------
Vincent Mathieu
Jefferson Lab Research Fellow
vmathieu at jlab.org <mailto:vmathieu at jlab.org>

Joint Physics Analysis Center:
http://www.indiana.edu/~jpac/index.html <http://www.indiana.edu/~jpac/index.html>
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> On Nov 30, 2018, at 5:07 PM, Carlota Andres <carlota at jlab.org> wrote:
> 
> Dear all, 
> 
> Here is a reminder for next week's seminars:
> 
> Theory Seminar:
> Monday, December 3rd, 1:00PM, Room L102,
> Peng Guo (California State University-Bakersfield), "Multiple particles interaction in finite volume"
> BlueJeans connection: https://bluejeans.com/321085255
> 
> Abstract: 
> I will discuss briefly on the multiple particles interaction in finite volume. The focus will be given primarily on the variational approach to finite volume multiple particles problems, and I will also talk about current status and future directions, etc.
> 
> 
> Cake Seminar:
> Wednesday, December 5th, 1:00PM, Room L102,
> Luka Leskovec (Jlab), "A lattice QCD study of the $\rho$ meson"
> BlueJeans link: https://bluejeans.com/195615763
> 
> Abstract: 
> The $\rho$, perhaps the simplest hadronic resonance, offers plenty of interesting phenomena where new methods in lattice field theory can be tested and better understood. In this talk I will present results from our recent lattice QCD studies with $N_f=2+1$ clover fermions at a pion mass of approximately 320 MeV and lattice size 3.6 fm. I will discuss two processes involving the $\rho$: the first is by now the already well studied elastic scattering of two pions in P-wave with isospin 1, where the $\rho$ appears as a resonance. By analyzing the spectrum with the Luescher method we determine the strong decay width $\rho$→ $\pi\pi$. The second process is the radiative transition $\pi \gamma$ → $\pi\pi$ where we use the Briceno-Hansen-Walker-Loud approach to determine the transition amplitude in the invariant mass region near the $\rho$ resonance for both space- and time-like photon momentum. By analytic continuation to the $\rho$ pole we are able to determine also the $\rho$ radiative decay width, $\rho$→ $\pi\gamma$.
> 
> Raza, Vincent, Carlota
> 
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