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Detector system cost estimates presented to and reviewed by CERN utilize CERN accounting policies and practices. The U.S. Party will assume no responsibility with respect to the validity of such cost estimates.

These funds shall only be used for those U.S. responsibilities identified in Article VI and the associated MOUS.

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Article VIII
Responsibilities of CERN

The general obligations of CERN as host laboratory, and of the participating institutions are laid down in the document "General_ Conditions for Experiments Performed at ÇERN” (April 1989), which is considered a part of this Frotocol. The Financial Guidelines for LHC Collaborations (CERN/FC/3796, dated August 30, 1995) is also considered a part of this Protocol..

It is understood that the design, fabrication, and operation of the detectors will be managed by the ATLAS and CMS Collaborations, respectively, with CERN having oversight responsibility and providing continuous monitoring through CERN's Research Board and its LHC Committee. The Research Board is responsible for CERN's entire experimental research program and is chaired by the Director General, whereas the LHC Committee reviews for the Research Board the technical progress of the LHC experiments.

The Technical Co-ordinators of the ATLAS and CMS Collaborations shall be CERN staff members, and shall have overall responsibility for technical aspects of detector construction. Their responsibilities shall include integration of the subdetectors, safety, infrastructure at CERN, surface and experimental areas, services, installation, machine interface, and test beams.

Similarly, the Resource Co-ordinators of the ATLAS and CMS Collaborations shall be CERN staff members and shall have the responsibility for monitoring the financial aspects of the detector projects, including budget and manpower planning and the MOUS, as well as the responsibility for the financial aspects of the Common Projects and associated Common Funds.

CERN shall have the responsibility to approve the appointments of the ·Technical and Resource Co-ordinators, and to ensure that they have the staff and engineering support required to carry out their responsibilities. It will be CERN's overall responsibility to ensure, as best as it can, that there is a satisfactory match between the available resources (including funding and manpower) and the approved detector projects. ČERN, through the Resource and Technical Coordinators, will have oversight responsibility for Common Projects

Article IX

CERN Support for U.S. Scientists

CERN will provide U.S. scientists participating in the LHC program the same level of facility support that it normally provides to all its visiting scientists.

Article X

Potential Detector Upgrades

Should the ATLAS and/or CMS Collaborations seek to improve and upgrade their detectors some time in the future, such upgrades will be the subjects of new MOUS, or addenda to existing MOUS, to be negotiated within the Collaborations. The access of U.S. contractors and grantees to participation in the Collaborations will be extended to participation in the upgraded detectors on the same basis as described in Article II of this Protocol.

Article XI
Protocol Duration

This Protocol shall enter into force upon signature, and remain in force for twenty (20) years from the date of signature, followed by automatic renewal on a year-by-year basis, provided the International Co-operation Agreement remains in force.

Article XII

Amendment Procedure

The Parties may amend this Protocol by written consent.

Article XIII

Final Provisions

This Experiments Protocol shall form an integral part of the International Cooperation Agreement.

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With this letter I am transmitting the report of the "High Energy Physics Advisory Panel's
Subpanel on Planning for the Future of U.S. High Energy Physics" chaired by Professor
Fred Gilman. This Subpanel was formed in response to your charge letter dated March 11, 1997.
The full Panel discussed the report at its meeting on February 18 and 19, 1998, and endorsed it
unanimously and wholeheartedly.

On behalf of the entire community of high energy physicists we thank Professor Gilman and the members of the Subpanel for the good judgment they brought to their work. They set careful priorities in order to design an optimum program within the budget constraints detailed in the charge. The report outlines a plan for the future with an excellent balance among full utilization of laboratory facilities, the needed participation of university groups in the physics program, building up the LHC research effort, and R&D toward a new collider facility at the energy frontier. The report also lists the significant cuts needed in parts of the existing program in order to carry out the major recommendations. The plan recognizes the importance of global collaboration in the design, siting, and construction of large future facilities. The Subpanel gave special attention to the University HEP program, as you requested, and made several important recommendations to revitalize it.

The Report of the Subpanel makes a forceful argument that the investment being made in High Energy Physics continues to produce a rich return in scientific results. In recent months a great deal of attention has been focused on the many benefits to the nation from basic research and on the importance of federal support for that research. High Energy Physics will continue to be a central part of the overall enterprise of U.S. science. We hope that this report will help you communicate that High Energy Physics is one highlight of the excellent science program supported by the Office of Energy Research.

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