LEP experiments spokesmen

ALEPH (approved  18 Nov. 1982, finished 21-03-2014)

• Jack Steinberger (1983–February 1990)
• Jacques Lefrancois (March 1990–1993) Source for end year: <https://cds.cern.ch/record/897514/files/cer-002567958.pdf>
• Lorenzo Foa (1993–1994) Source for end year: <https://cds.cern.ch/record/897514/files/cer-002567958.pdf>
• Luigi Rolandi (1994–1997) Source for end year: <https://cds.cern.ch/record/897514/files/cer-002567958.pdf>
• John Peter Dornan (1997– March 2000)
• Wolf-Dieter Schlater (April 2000–March 2001)
• Roberto Tenchini (April 2001–2005? or 2014?) Source for end year 2005: <https://cds.cern.ch/record/897514/files/cer-002567958.pdf>. I think it shall be until the experiment finished: 2014

OPAL  (approved  18 Nov. 1982,  finished 02-11-2010)

Aldo Michelini (1983) <https://home.cern/news/obituary/cern/aldo-michelini-1930-2020> states until 1995

Rolf Heuer (1994–August 1998) <https://cerncourier.com/a/council-appoints-rolf-dieter-heuer-as-cerns-next-director-general/>

David Plane (September 1998–2010) In my view there must be a typo in the Greybook data (see below: From: 31-08-1999 <sic?> ). Plane must have followed Heuer directly in 1998.

L3  (approved  18 Nov. 1982, finished 02-11-2010)

Samuel Ting  (1983–2010)

Hans Hofer (April 1999–2010), together with Ting? See <https://greybook.cern.ch/experiment/detail?id=L3>

DELPHI  (approved  18 Nov. 1982)

I belive the page https://sis.web.cern.ch/archives/CERN_archive/guide/experimental_physics/LEP/isadelphi has not recorded the correct start year for Danile Treille. I can easily ask him.

Ugo Amaldi (1983–1993) The paper <https://arxiv.org/html/2512.11019v1> stated 13 years in the position, but that includes the “preDELPHI” group COLLEPS.

Jean-Eudes Augustin (1994–1995) Source end date <https://labcit.ligo.caltech.edu/~BCBAct/PDF%20files/Angustin_cv.pdf>

Danile Treille (1996–1998) Source for start year: printed Grey book (wrong in e-version, see below). Idem for end-year. I believe it shall be October 1998

Walter Anton (Wilbur) Venus (November 1998–1999)

Tiziano Camporesi (2000–February 2002)

Jan Timmermans (February 2002–today)

BREMS (approved 6 Apr. 1989,  finished 06-04-1999)

Diambrini (1989–1999)

MODAL (approved 27 Sep. 1989, finished 18-02-2002)

J. L. Pinfold (1989–2002)