Letter of Intent for a Tevatron Collider Beauty Factory

Abstract

A hadron collider beauty production experiment which will increase our knowledge of mixing, rare decay modes and even of CP violation could be performed using a new type of detector at the upgraded Fermilab Tevatron. In order to progress from the hundreds of thousands of B{bar B} events which can be tagged per year at a luminosity of several times 10{sup 29}/cm{sup 2}-sec to an ultimate yield of tens of millions at a luminosity of several times 10{sup 31}/cm{sup 2}-sec, they also must embark on a learning curve which will take many years and will require development both of hardware and software before achieving a final system. A new high-luminosity intersection region would have to be included as part of the presently-planned Tevatron Collider upgrade. Designing and constructing an initial system will take four years. Thus, in the light of the positive decision on the SSC, a start must be made soon if Fermilab is ever to play a strong role in this exciting area of physics. Designing even the initial system will require several man-years of effort by a dedicated group of people, together with concurrent work in prototyping and testing. They therefore ask that the Physics Advisory Committee give us their opinion of the priority such a project should be given at Fermilab, within the context that eventually it will require a devoted interaction region which accesses the full achieved luminosity of the machine. Initially, they discuss physics accessible as the B{bar B} yield increases. Subsequently, they outline a detector which can be staged, increasing its power (and cost) as we progress along our learning curve. Finally, costs and time schedules are estimated for the initial version of this detector and possible locations are discussed.

Letter of Intent for a Tevatron Collider Beauty Factory

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