July 2, 2012 (11:30AM), Physics Working Group

Meeting Time and Place

Monday July 2, 2012 at 11:30pm At Jefferson Lab, the meeting will be held in F326

Connections

To connect from the outside, please use ESNET

1. ) ESNET: 8542553
2. ) Phone connection: 866-740-1260, code 3421244

Agenda

1. Announcements?
2. Updates on reconstruction?
   1. Tracking
   2. Calorimetry
   3. PID
3. Defining the data challenge? (Curtis)
4. Amplitude Analysis of b1pi: revised π⁰ recon. and kinematic fit approach (Igor)
5. Cascade Simulations (Nathan)
6. Updates on the Rare Eta decays studies? (Sascha or Liping)

Minutes

• Updates on reconstruction:

• Tracking (Simon): more b1pi diagnostic plots have been added, converting to one coordinate system for reported tracks (central parametrization)

• Calorimetry (Will): improved BCAL smearing in mcsmear, photon vertex is now at the center of the target by default

• Particle ID (Paul): working on kinematic fitting, writing reaction-independent analysis software

• Data challenge (Curtis):

• continue to iterate on the list of primary goals

• b1pi Reconstruction (Igor):

• isolating omega pi pi events in pythia

• omega peak currently is about 1:1 for signal:background

• could implement timing cut on photons

• would be helpful to break down the background into separate exclusive channels

• Rare eta decays (Liping and Sascha):

• Physics -- august workshop at jlab with several talks on rare eta decays, communicating with theorists to understand physics motivation

• Detector -- organizing meetings to discuss the detector design. Chinese collaborators?

• Simulation -- still deciding on simulation strategy.

• add a hybrid calorimeter to hdgeant and write reconstruction?

• add eta pi0 simulations?