1 / 7

Aerogel Detectors and Kinematics in Transversity Collaboration Meeting, May 2007

This document summarizes the key discussions from the Transversity Collaboration Meeting held on May 4, 2007, at the University of Illinois at Urbana-Champaign. Highlights include significant insights on HRS aerogel detectors and particle identification (PID) at P=2.4 GeV. Notable data on singles rates for various particles, capabilities of scintillators for pion and kaon separation, and the performance of Aerogel Detectors A1 and A2 are presented. The meeting addressed readiness reviews, upgrades to RICH performance, and plans for upcoming tests and refurnishing projects.

reba
Télécharger la présentation

Aerogel Detectors and Kinematics in Transversity Collaboration Meeting, May 2007

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lingyan Zhu University of Illinois at Urbana-Champaign for Transversity Collaboration Meeting May 4th, 2007 HRS Aerogel Detectors Transversity Collaboration Meeting

  2. HRS PID Detectors • Kinematics: P=2.4 GeV • Singles Rates: pi- 1.01k; K- 0.05k; e- 0.17k; pi+ 1.69k; K+ 0.34k; p 0.96k • Scintillators: some pi/K/p separation with TOF (pi/K--1.6ns; K/p--4.4ns;FWHM with S2M can be 0.66 ns. ) • Pion Rejector & Gas Cherenkov: pi(K)/e separation • RICH *1.3: better than 1:1000 pi/K rejection on 80% of the momentum acceptane; lower 15% with ~1:100 rejection. • Aerogel Detectors A1(n=1.015) and A2(n=1.055): additional pi/K/p separation especially at the low momentum. Transversity Collaboration Meeting

  3. Upgraded RICH Performance • Evaristo Cisbani, Readiness Review Transversity Collaboration Meeting

  4. The Historical A1/A2 performance • Stefeno Marrone et al, draft paper on A1/A2 P=2 GeV 2005 restored 2004 degraded 2000 original Transversity Collaboration Meeting

  5. Current Status of A1/A2 (Jan 2007) • Pete Markowitz: http://www.jlab.org/~markowit/Aerogel.html yellow surface A1 A2 falling paper Transversity Collaboration Meeting

  6. Near Plan of FIU/JLab Pete Markowitz, Bogdan Wojtsekhowski • Refurnishing of the PMT box of A2 is under way. • To start cosmic test on A2 in about a month and then decide whether to refurnish its aerogel box. • The plan for A1 will depend on result with A2. • May lower the index of A2 from 1.055 to 1.030. • Manpower needed: ~2 man-month per counter. Transversity Collaboration Meeting

  7. pi/K Identification at Different Index P=2.4GeV pi K p Transversity Collaboration Meeting

More Related