There is an immediate need to support US participation in the LHC R&Dprogram, and in the preparation of the CMS Technical Design Report (TDR). SSC experience would indicate that the level of support needed for these efforts is not negligible. Engineering activities required to advance the CMS design to a state where construction might begin will be rather large. FY95 and FY96 are a critical period where a beginning must be made if the US groups are to meaningfully participate in CMS as full partners.
SSC closeout funding is assumed to disappear at the end of FY94. Those funds should and are being used to transfer expertise from SSC to LHC experiments. However, in FY95 they will cease, while the needs for R&Dfor CMS, including travel and test beam work, will increase. We assume here that travel and infrastructure needs will be covered in individual supplemental requests by US CMS institutions to DOE. Without funding in FY95 and FY96, the US groups in CMS cannot, unfortunately, be considered as serious collaborators assigned construction responsibilities within CMS.
Table 4 gives a brief summary of the requests for R&Dsupport of US groups in CMS for FY95 and FY96. The requests for FY95 assume a reasonable ramp-up to the levels given in FY96. The details of these requests will be submitted later this year and may be given in individual submissions by the institutions in question after consultation with and approval by the CMS management team. In summary, US groups working on CMS request $2.6 M in FY95, increasing to $5.6 M in FY96. The immediate R&Dbudget tries to provide some funding for all projects, regardless of the weighting they may receive in the final CMS construction budget.
It is to be stressed that the US responsibilities to CMS are both major and coherent. Cognizant of the difficult financial outlook, the FY95/96 funding request has been given serious scrutiny and suffered considerable winnowing. The resulting request is simply the minimal funding needed to achieve the first R&Dand EDIA steps toward the major management and construction responsibilities assigned to the US groups by CMS. To set a scale, the present annual CMS R&Dbudget is 10 MCHF. Assuming a ``metric'' of $2equivalent to 1 CHF and noting that the US groups comprise about 25%of CMS (both as fraction of total physicists and as fraction of total project cost), one arrives at the estimated present required rate of $5Mper year. The requests for FY95 and FY96 rise to that level, and constitute a realistic minimal R&Dfunding profile.