LARGE HADRON COLLIDER COMMITTEE

Minutes of the thirty-fourth meeting held on Thursday and Friday,

7-8 May 1998

OPEN SESSION :

1. CMS Tracker Technical Design Report (LHCC 98-6):

R. Bellazini, A. Caner, R. Castaldi, R. Horisberger, G. Tonelli

2. CMS status report: T. Virdee

3. ATLAS status report: P. Jenni

CLOSED SESSION :

Present: B. Adeva, G. Altarelli, J. Carr, J. Engelen, A. Ereditato, L. R. Evans*, L. Fo, B. Foster, G. Goggi, D. Hartill, E. Iarocci (Chairman), M. Kasemann, R. Kephart, H. Kolanoski*, S. Komamiya, J. May, M. Mazzucato, N. McCubbin, K. Potter, A. Read, G. Rolandi, A. Rostovtsev, M. Spiro, E. Tsesmelis (Secretary).

*) Part time

Apologies: C. Llewellyn Smith, A. Schwarz, D. M. Sendall, P. Sharp, H. Wenninger

(G. Zech was present for point 2) .

1. The minutes of the thirty-third LHCC meeting (LHCC 98-7 / LHCC 33) were approved with the following amendment: in paragraph 1 of point 6 (report from the LHCC Electronics Board) "NMOS" should read "CMOS".

2. REPORT FROM THE CMS REFEREES

The committee heard a report from the CMS referees, concentrating on preliminary reactions to the Technical Design Report for the tracker system. A reviewing schedule has been agreed and the referees plan to make a further report at the next meeting of the LHCC.

3. REPORT FROM THE ATLAS REFEREES

The committee heard a report from the ATLAS referees. They reviewed the present status and plans for the muon system as the detector is entering the "Module-0" phase. No significant changes to the milestones have been encountered. The alignment of the muon system will be reviewed again at the end of October.

4. REPORT FROM THE LHCC COMPUTING BOARD

M. Mazzucato reported on the work of the LCB, covering a number of topics discussed at their recent meetings; further details may be found in the minutes of the LCB.

The LCB has reviewed the status report of RD45, which aims to find solutions to the problem of producing a persistent object manager for HEP (ODBMS). The LCB considers that RD45 has met the 1997 milestones set by the LCB and is congratulated for its excellent work. The project should be continued with the next status report scheduled in 18 months. The referees will make an interim report to the LCB at 6-month intervals. During this time, the LHC experiments are expected to actively participate in defining and performing the necessary ODBMS R&D in conjunction with RD45 and in parallel with the production phase.

The LCB has also reviewed the status report of PIE (Persons Institutes Experiments), whose objective is to provide a single coherent set of high quality data concerning experiments, collaborations, institutes and people. It was noted that all collaborations strongly support this project. However, the LCB is concerned that there is still much work to be done before this new database could be put into production. The LCB recommends the continuation of the project until the production version is delivered.

The LCB discussed the written Project Assignment Plan (PAP) on Event Filter Farms, the objective of which is to study the details of event filter stages for the LHC experiments. The LCB encourages the project to prepare the Project Execution Plan (PEP) in time for a presentation at the June LCB meeting. Referees were appointed for this project.

The LHCC endorses these conclusions.

The LCB welcomes and strongly supports the new licence scenario for LHC++, whereby LHC++ will be provided by CERN to institutes working at CERN just as CERNLIB was available in the past.

The LHCC Computing Workshop was held in Barcelona. For details consult the minutes of the LCB.

A workshop on detector control systems is being planned for June at CERN.

5. REPORT FROM THE MAGNET ADVISORY GROUP

T. Taylor reviewed the ATLAS and CMS magnet projects. Although the planning is challenging, the present very large effort is going in the right direction to meet the milestones for the magnet production. A report detailing the present status of the ATLAS and CMS magnets is being written by the Magnet Advisory Group (MAG).

6. REPORT FROM THE LHCb REFEREES

The committee heard a progress report on the review of the LHCb Technical Proposal received in February 1998. The referees reported on the progress concerning the tracking, RICH, calorimeters, and trigger/DAQ. In general, there has been good progress since the submission of the Technical Proposal and the referees plan to make a further report at the next meeting of the LHCC.

7. REPORT FROM THE ALICE REFEREES

The committee heard a report from the ALICE referees, including a review of the technology choice for the particle identification by time-of-flight. Following a careful assessment, the collaboration has decided to proceed with the Parallel Plate Chamber (PPC) option to the TDR. The LHCC takes note of the substantial progress made on both the Pestov counter and PPC technologies, and accepts the ALICE decision to proceed with the PPC option.

The referees also summarised the status of the Si-strip and HMPID detectors, and presented the schedule for the submission of the ALICE TDRs.

8. REPORT FROM THE MOEDAL REFEREE

The committee heard a report from the MOEDAL referee, concentrating on the preliminary reactions to the MOEDAL Letter of Intent. The search for highly ionizing particles is of interest and is worth pursuing. The referee plans to make a more detailed report at the next meeting of the LHCC.

9. TEST BEAMS

E. Tsesmelis presented the status of the SPS and PS schedules. The PS East Hall is undergoing a major upgrade and the first beams will be available for physics in July, with the commissioning of lines continuing into the Fall. The East Hall schedule has been discussed with the users and the overall requests have been satisfied.

10. OTHER BUSINESS

The Chairman announced that in view of his recent appointment as President of the INFN, he had offered his resignation with effect on 30 June, which the Director-General had accepted. The Director-General warmly thanked E. Iarocci for the heavy work done for CERN in the last three years and for the wisdom with which he chaired the committee. J. Engelen has been appointed as his successor.

11. DATES FOR 1998 MEETINGS

The LHCC received the following documents
 

* Restricted circulation only.
 
 
   
 

LHCC Secretariat: Janet Grant (Bldg. 14/4-022) Tel. 73424
Janet.Grant@CERN.CH