Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session D09: Meson Electro- and Photo-production
3:30 PM–5:18 PM,
Saturday, April 13, 2019
Sheraton
Room: Governor's Square 11
Sponsoring
Units:
DNP GHP
Chair: Latifa Elouadrhiri, Jefferson Lab
Abstract: D09.00003 : CLAS12 at Jefferson Lab - Instrumentation and Performances
3:54 PM–4:06 PM
View Presentation Abstract
Presenter:
Latifa Elouadrhiri
(Jefferson Lab)
Author:
Latifa Elouadrhiri
(Jefferson Lab)
Collaboration:
CLAS Collaboration
The CEBAF Large Acceptance Spectrometer (CLAS12) is a state-of-the-art particle detector designed and built as part of the Jefferson Lab 12GeV Upgrade to map out distributions of quarks in space and momentum, culminating in a picture the internal structure of protons and neutrons. An international collaboration has designed fabricated, assembled, and commissioned CLAS12 in Hall B at Jefferson Lab. The CLAS12 detector is based on a combination of a 6-coils toroidal magnet and a high field solenoid magnet. The combined magnetic fields provide a large coverage in both azimuthal and polar angles. Trajectory reconstruction is provided using drift chambers at forward angles and silicon detectors at large angles Cherenkov counters, time-of-Flight systems and calorimeters provide good particle identification for electrons, charged pions, kaons and protons. Fast triggering and high data acquisition rates allow operation at luminosities of 10^35/cm^2/s. These capabilities are being used in a broad scientific program to study the structure and interactions of baryons, meson and nuclei using polarized and unpolarized targets. We will present general description of the design, construction and performance of CLAS12 enabling a new generation of experiments in hadronic physics.
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