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397 Matching Results
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Considerations of bunch-spacing options for multi-bunch operation of the Tevatron Collider
This discussion will consider a number of points relevant to limitations, advantages and disadvantages of various arrangements of bunches in the Tevatron proton-antiproton collider. The considerations discussed here will be limited to: (a) bunch spacing symmetry and relation to the relative luminosity at B0 and D0 and the beam-beam interaction with separated beams; (b) bunch spacing constraints imposed by Main Ring RF coalescing and the optics of beam separation at B0 and D0; and (c) bunch spacing constraints imposed by injection and abort kicker timing requirements, and by the Antiproton Source RF unstacking process. 20 figs., 17 tabs.
Date:
December 14, 1989
Creator:
Dugan, G.
Object Type:
Report
System:
The UNT Digital Library
The shell model approach: Key to hadron structure
A shell model approach leads to a simple constituent quark model for hadron structure in which mesons and baryons consist only of constituent quarks. Hadron masses are the sums of the constituent quark effective masses and a hyperfine interaction inversely proportional to the product of these same masses. Hadron masses and magnetic moments are related by the assumption that the same effective mass parameter appears in the additive mass term, the hyperfine interaction, and the quark magnetic moment, both in mesons and baryons. The analysis pinpoints the physical assumptions needed for each relation and gives two new mass relations. Application to weak decays and recent polarized EMC data confirms conclusions previously obtained that the current quark contribution to the spin structure of the proton vanishes, but without need for the questionable assumption of SU(3) symmetry relating hyperon decays and proton structure. SU(3) symmetry breaking is clarified. 24 refs.
Date:
August 14, 1989
Creator:
Lipkin, H.J. (Weizmann Inst. of Science, Rehovoth (Israel). Dept. of Nuclear Physics)
Object Type:
Article
System:
The UNT Digital Library
[Letter from Ann Lupkowski to Jim Miller, June 14, 1989]
Letter from Ann Lupkowski to Jim Miller, on June 14, 1989, congratulating him on the funding of the Texas Academy of Mathematics and Science by the Texas Legislature. She also mentions that she intends to apply for federal grants for projects for gifted and talented students.
Date:
June 14, 1989
Creator:
Lupkowski, Ann E.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Ann Lupkowski to Rogers Redding, June 14, 1989]
Letter from Ann Lupkowski to Rogers Redding, on June 14, 1989, congratulating him on receiving funding for the Texas Academy of Mathematics and Science from the Texas Legislature, and offering a list of projects she hopes to undertake when she begins work at the University of North Texas.
Date:
June 14, 1989
Creator:
Lupkowski, Ann E.
Object Type:
Letter
System:
The UNT Digital Library
[News Clip: Talk Radio]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a movie review by Bobbie Wygant about the film "Talk Radio." This story consists only of scenes from the film.
Date:
January 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Gay Police]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
July 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Plane Mechanics]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
September 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Rochester Park]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
June 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Super Collider]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
September 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Portrait J. Weatherford]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
October 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Smoking Ban]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
September 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Body Found]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
October 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cop Busted PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
February 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: SSC Doubts PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
March 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Council Alcohol]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
June 14, 1989, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: US/Mexico Trade PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
February 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Edible Flowers PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
February 14, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Kids - Circus]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about members of a circus performing for children in a Dallas hospital from Russia whom had surgery to adjust deformities they were born with. This story aired at 6pm.
Date:
December 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Outdoors]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story by reporter Bill Tippett about men doing duck calls for hunting. This story aired at 5pm.
Date:
December 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Burglaries]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about 50 residential burglaries of several electronics that led to the arrest of students at Poteet High School. This story aired at 5pm.
Date:
December 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Shooting]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story. The story aired at 5pm.
Date:
November 14, 1989, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: SCC Scientists]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
July 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Rochester Park]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5pm.
Date:
June 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Criswell College]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date:
September 14, 1989
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library