mode. In FY 1987 the accelerator is expected to operate at energies near 900 GeV per beam for both fixed target and colliding beam experiments. The Alternating Gradient Synchrotron at Brookhaven National Laboratory (BNL) has the world's highest energy beam of polarized protons and high intensity kaon beams for precision studies of rare kaon decays. Successful development of the Stanford Linear Collider (SLC) at the Stanford Linear Accelerator Center (SLAC) will provide an essential demonstration of the technical feasibility of the new linear collider concept, which is a critical step toward future cost-effective extensions of electron-positron reaction energies beyond the maximum energy practical with circular accelerators. It will also permit significant new physics with 50 GeV on 50 GeV electron-positron colliding beams. Good progress is being made on fabrication and installation of components for SLC. Systems tests are scheduled to begin later in FY 1986, and first 50 GeV on 50 GeV colliding beam experiments are planned early in 1987. FY 1987 HIGH ENERGY PHYSICS BUDGET REQUEST The FY 1987 request for the High Energy Physics program is $546.7 million, which consists of $427.5 million for Operating Expenses, $77.5 million for Capital Equipment and $41.7 million for Construction (Table 2). A major part of the funding for the program is required to meet the direct needs of the accelerator laboratories to develop, maintain and operate the major accelerator, colliding beam and detector facilities. The high energy particle accelerator and colliding beam facilities to be operated by the Department in FY 1987 include: first operation for research of Fermilab's collider and CDF providing 900 GeV on 900 GeV proton-antiproton collisions; the first operation for research of the SLC collider and Mark II detector at the Stanford Linear Accelerator Center (SLAC) providing 50 GeV on 50 GeV electron- positron collisions; the Tevatron superconducting magnet proton synchrotron at Fermilab providing proton beams of about 800 GeV and numerous secondary beams for fixed target experiments; the 50 GeV linear electron accelerator at SLAC providing injected beams for the PEP storage ring (15 GeV on 15 GeV) and for the SPEAR storage ring (4 GeV on 4 GeV) in addition to the SLC mentioned above; and the 30 GeV proton synchrotron, the Alternating Gradient Synchrotron (AGS), at Brookhaven National Laboratory (BNL). Each of these DOE accelerator centers provides a unique set of experimental research capabilities, complementary to the others. The facilities at these laboratories provide the source of experimental data for most of the High Energy Physics research, more than 75% of which is carried out by university-based scientists. In addition to research carried out using high energy accelerators in the U.S., the Department's High Energy Physics program supports experiments which use the capabilities of unique foreign accelerators and also some experiments which do not require beams from particle accelerators. The FY 1987 request for operating expenses is $427.5 million. The major features of the program in FY 1987 will be the first operation for research of the 900 GeV on 900 GeV proton-antiproton colliding beam capability provided by Tevatron I, and of the 50 GeV on 50 GeV electron-positron colliding beam capability provided by the SLC. The program will also include operation and research utilization of the recently upgraded Tevatron fixed target facilities at Fermilab, of the BNL AGS with its fixed target program including rare kaon decay experiments and its unique high energy polarized proton beam, and of the SLAC PEP and SPEAR colliding beam facilities. There are major incremental costs associated with operation of the new world forefront Tevatron and SLC collider facilities. These two new research capabilities ensure a world competitive position for the U.S. program. The request brings these new research facilities into operation and accommodates an overall facility utilization level near 50 percent. The request provides continuing support for universitybased groups including U.S. user group efforts at U.S. and foreign accelerators, non-accelerator experiments, and theoretical research efforts. The FY 1987 program also includes funding for a continuation of advanced technology accelerator and detector R&D. I will make some specific remarks about the Superconducting Super Collider (SSC) after I have completed summarizing the High Energy Physics budget. The FY 1987 capital equipment request of $77.5 million meets the highest priority needs for the detectors required to implement strong research programs based upon the new capabilities provided by the Tevatron proton-antiproton collider at Fermilab and by the SLC electron-positron collider at SLAC. The equipment request for FY 1987 is essential to make it possible for the D-Zero and Stanford Linear detectors to be completed in FY 1989 and thereby permit most effective utilization of the new U.S. High Energy Physics facilities being completed in FY 1986 at Fermilab and SLAC. The The FY 1987 request for construction funds is $41.7 million. projects are listed in Table 3. This program includes continued work on upgrading of the central computing capability at Fermilab ($14.1 million) which is required for the analysis of the large volume of new physics data coming from the Tevatron program, to continue construction of the AGS Accumulator/Booster at BNL Funds are requested for Accelerator Improvement and Modifications Projects ($11.5 million) that are critical on an annual basis to maintain the scientific effectiveness and the operating reliability and efficiency of the accelerator and colliding beam facilities. The request also provides $11.2 million for General Plant Projects (GPP) which are required to keep the general plant of the laboratories (e.g., buildings, roads, utilities) in operating condition. This brings me to the SSC, which has been the subject of great interest, both in the scientific realm and in the public realm. would like to state briefly where we are now and what the Department's plans are with regard to the SSC. As I indicated in my discussion of accomplishments, excellent progress has been achieved in recent years in improved understanding of the fundamental constituents of matter and the basic forces that influence their behavior. Physicists now have the "Standard Model" which provides a framework within which these things can be viewed consistently. However, the Standard Model is not the final anwer. Many very fundamental questions such as the origin of particle masses cannot be answered within the theory. There is much left to do. The facility upgrades nearing completion at Fermilab and SLAC will provide two world forefront research capabilities to the beginning of the 1990's which will permit exploration in new physical domains and exciting new discoveries. However, these research capabilities cannot explore the TeV mass scale where breakthroughs in fundamental understanding and new phenomena are expected. Access to the TeV mass scale will definitely test many key features of the Standard Model, and permit exploration of an entirely new domain never before explored. In late 1983, the Department developed a plan to initiate preliminary R&D related to an SSC. This R&D program was to carefully assess costs, examine cost-reduction opportunities, and resolve technical and design issues, providing crucial input upon which to base an informed judgment about proceeding with the SSC at an appropriate time. The activities begun in FY 1984 have been continued into FY 1985 and FY 1986. The accelerator R&D related to the SSC initiated in FY 1984 was achieved as a redirection of efforts from earlier planned accelerator R&D. The 1984 work included R&D on technical options |