[Brahms-l] Minutes 28 Aug 09

From: Michael Murray <mjmurray_at_ku.edu>
Date: Fri, 28 Aug 2009 13:00:04 -0500
Minutes of BRAHMSAnalysis Meeting Friday 28 August 2009
=======================================================
Call in 631-344-6261

Present: Flemming, Ramiro, JH, Chellis, Steve, Kris, Michael

Agenda http://indico.cern.ch/conferenceDisplay.py?confId=67031

While waiting for everyone to come Steve reviewed Pawel's paper.
He had some comments on the abstract and author list. The references  
also need to be cleaned up. Steve will get his comments on p/pi to  
Pawel and Ramiro will do some cleaning up. They hope to agree on the  
abstract by Monday.


09:30 	p + p stopping       Kris Hagel
=======================================
Kris discussed how to get a stopping measurement from our net protons  
distributions. He has tried to copy the formalism from the AuAu paper  
which means he needs lambda/p and neutron/p ratios. STAR has measured  
the lambda/p ratio and for n/p he uses HIJING to get a rapidity  
dependent factor It was agreed that we should be including single  
diffractive events in HIJING.
He is taking the lambda/p ratio to be independent of rapidity. He has  
used a Momguas distribution, constrained to end at y=ybeam to  
describe the data.

JH thought that perhaps we should use PYTHIA. He also looked at  the  
NA49 paper so that he could study the systematics of deltaY vs  
energy. We need to think about the systematic errors. For calculating  
delta Y we discussed the importance of baryon conservation. Chellis  
asked if delta y was sensitive to the n/p ratio since it seems  
somewhat high to him.


AOB:
====
Michael talked to Selemon about his paper. He asked that he produce  
the dN/dy's from fits to individual spectra rather than the blast  
wave. We will compare the results next week.

===================== submitted by Michael Murray  
========================

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Received on Fri Aug 28 2009 - 14:00:08 EDT

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