Archives of CHARM I and CHARM II Collaborations

Identity Statement [Top]

Reference code(s)



Archives of CHARM I and CHARM II Collaborations


1967 - 1991

Level of description


Extent of the unit of description

6 linear meters

Context [Top]

Name of creator

CHARM Collaboration

Administrative history

In 1977 the proposal of the CHARM Collaboration (CERN-Hamburg-Amsterdam-Rome-Moscow Collaboration) to study semi-leptonic neutral current processes and muon polarization produced in neutrino and antineutrino interactions was accepted by the Experimental Physics (EP) Division.

The physics aims of this experiment were:

  1. The study of inclusive semi-leptonic neutral current neutrino interactions with nucleons.
  2. The measurement of polarization of m+ produced in antineutrino interactions in Fe.
  3. The measurement of polarization of m+ from dimuon events,
  4. The search for new particles.

CHARM (CERN-Hamburg-Amsterdam-Rome-Moscow Collaboration) Experiments

WA18: The data-taking of this SPS experiment began in 1978. WA18 started running with the complete apparatus in 1979, and was completed on the 3rd September 1984. WA18 is a study of semi-leptonic neutral-current processes and of m- polarization produced in n and n- interactions using counters.

WA65: The preparation of this SPS experiment began in 1980. WA65 was completed on the 13th September 1982. WA65 = further studies of prompt neutrino production in 400 GeV proton-nucleus collisions.

PS181: The preparation of this PS experiment began in 1980. The setting-up was done in 1982 and the data-taking began in 1983. This experiment is a contribution to the CERN neutrino oscillation program.

CHARM 2 (Brussels IIHE-CERN-Hamburg-Louvain-Moscow-Munich-Naples-Rome Collaboration) experiments

WA79: The preparation of this experiment began in 1983. The setting-up started is 1984. The data-taking began in 1986. WA79 was completed on the 12th August 1991. WA79 is a study of electron scattering at the SPS.

Immediate source of acquisition or transfer

Klaus Winter, Spokesman CHARM, EP division.

Content & Structure [Top]

Scope and content

The CHARM and CHARM 2 collections contain various papers about CHARM collaboration, logbooks, runbooks, minutes, memoranda, drafts, results, and scientific papers.

Appraisal, destruction and scheduling information

Nothing was destroyed.


No further accruals are expected.

System of arrangement

The original order of the archives was preserved. The files are sorted in two categories:

Conditions of access and use [Top]

Conditions governing access

See file level description and the CERN operational circular No 3: rules applicable to archival material and archiving at CERN. In general, records on any subject that are over 30 years old, and all records of a purely scientific nature, may be consulted.

Conditions governing reproduction

Copyright is retained by CERN, no reproduction without permission.

Language / scripts of material

Most of the material is written in English.

Finding aids

Listed to file level in the CERN Archives Database.

Description control [Top]

Archivist's note

Description prepared by Maywenn Haldimann

Date(s) of description

Geneva, the 11th March 2002. Revised 2007.