2026-09-20T18:16:28Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/324202022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Christoph M.E. Paus.
Mulhearn, Michael James
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2006-03-29T18:43:00Z
2006-03-29T18:43:00Z
2004
2005
http://hdl.handle.net/1721.1/32420
61709185
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, June 2005.
Includes bibliographical references (p. 159-164).
Magnetic monopoles are highly ionizing and curve in the direction of the magnetic field. A new dedicated magnetic monopole trigger at CDF, which requires large light pulses in the scintillators of the time-of-flight system, remains highly efficient to monopoles while consuming a tiny fraction of the available trigger bandwidth. A specialized offline reconstruction checks the central drift chamber for large dE/dx tracks which do not curve in the plane perpendicular to the magnetic field. We observed zero monopole candidate events in 35.7 pb⁻¹ of proton-antiproton collisions at ... = 1.96 TeV. This implies a monopole production cross section limit [sigma] < 0.2 pb for monopoles with mass between 100 and 700 GeV, and, for a Drell-Yan like pair production mechanism, a mass limit m > 360 GeV.
by Michael James Mulhearn.
Ph.D.
164 p.
6367269 bytes
6376622 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
A direct search for Dirac magnetic monopoles
Thesis
application/pdf
Publication
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unknown
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