Nuclear effects on heavy quark production: Results from Fermilab Experiments E772 and E789

Conference · Tue Dec 31 00:00:00 EST 1991

OSTI ID:10111895

E772 and E789 Collaborations

Fermilab Experiments E772 and E789 are fixed target experiments with 800 GeV protons incident on nuclear targets corresponding to a center-of-mass energy of {radical}{bar s} {approximately} 39 GeV. Measurements are made with a pair spectrometer which has a solid angle of a few percent and operates at high luminosity with up to {approximately}10{sup 12}(E772) or {approximately}10{sup 11}(E789) protons/spill. Our experimental program explores several types of nuclear medium effects: the modification of quark and gluon structure functions by the nucleus, effects on the production of vector mesons (e.g. J/{psi} and {gamma}), and effects on the production of D mesons. The latter is accomplished with the use of a new silicon vertex detector. E789 also looks at the decays of B mesons including the decay to J/{psi} and searches for the decays to two-charged particles (e.g. B {yields} h{sup +}h{sup {minus}}) but I will not discuss this part of our program in this paper.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10111895
• Report Number(s): LA-UR-91-3962; CONF-9111165-1; ON: DE92005067
• Resource Relation: Conference: Quark matter `91,Gatlinburg, TN (United States),11-15 Nov 1991; Other Information: PBD: [1991]
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
QUARK MATTER
STRUCTURE FUNCTIONS
J PSI-3097 MESONS
PARTICLE PRODUCTION
CROSS SECTIONS
BINDING ENERGY
SHADOW EFFECT
QUARKS
TRANSVERSE MOMENTUM
D MESONS
B MESONS
PROTON-NUCLEON INTERACTIONS
662340
662230
663430
HADRON INTERACTIONS
QUANTUM CHROMODYNAMICS
NUCLEON-INDUCED REACTIONS AND SCATTERING