Collaboration DIRAC
(DImeson Relativistic Atom Complex)
- to measure the lifetime of
[π−π+] atoms
→ Pionium
- to observe
[π−K+] & [π+K−] atoms
→ [πK] atom
- then to measure the [πK] atom lifetime.
The setup consists of a precise magnetic double arm spectrometer, installed in the high intensity proton beam of the CERN Proton Synchrotron.
- Last SPSC meeting on 28 June 2011: DIRAC report (L. Nemenov)
- Future of DIRAC [status ; slides (private)]
- DIRAC physics paper
(CERN-PH-EP-2011-028,
arXiv:1109.0569):
Determination of ππ scattering lengths from measurement of ππ atom lifetime,
Physics Letters B 704 (2011) 24. - DIRAC physics paper (arXiv:0905.0101):
Evidence for πK atoms with DIRAC,
Physics Letters B 674 (2009) 11. - DIRAC physics paper (hep-ex/0504044):
First measurement of the ππ atom lifetime,
Physics Letters B 619 (2005) 50. - DIRAC physics paper (hep-ex/0409053):
Detection of ππ atoms with the DIRAC spectrometer at CERN,
J. Phys. G: Nucl. Part. Phys. 30 (2004) 1929-1946.
This paper has been nominated by the Editorial Board of J. Phys. G
for inclusion in the Research Highlights of 2004. - DIRAC on Argonne News 2005 (28/02/05), physicsweb 2004 (Physics World) and in Frankfurter Allgemeine Zeitung (03/11/04)
- Conferences
- Software upgrade:
- see DIRAC mail by D. Drijard from ... : NNN_nn (Ariane and detectors update)
- Public DIRAC and published results 2005 (PDF)
- Introduction
- Trigger and DAQ system:
- Trigger logic: DIRAC trigger (status 17.08.2007)
- DAQ manuals
- Computing and software:
- DIRAC offline user guide ----> user guide
- GEANT-DIRAC simulation --> user guide
- Simulated data processing ---> user guide
- Analysis:
- Detector parts
- Detector characteristics (DIRAC I setup, DIRAC II setup)
- Active image (for advanced browsers only)
- Papers [see also in cds: DIRAC Papers]
- Conference Proceedings [see also in cds: DIRAC Conference Proceedings]
- Notes [see also in cds: DIRAC Notes]
- Reports [see also in cds: DIRAC Reports]
- Theses [see also in cds: DIRAC Theses]
- Preprints
- Talks
- General references of interest for DIRAC CHECK:
- Private DIRAC
- Meetings (collaboration,
executive board,
technical board)
-> for minutes (see also Internal notes) - DIRAC presentations at SPSC, CERN Administration and PAC Dubna (>1999)
- SHIFT schedule for 2012 (pdf)
- Run meetings: Tuesday & Friday in the DIRAC conference room, Bld 585 R-030, at 17:00.
- Check: DIRAC 2012 (later)
- Accelerator schedule
- Current status of the accelerator
- PS eLogbook
- EASTB infos
Visitor Nr.
since 14/04/00.
[Update: 19/01/12 JS]