Seiden works in experimental particle physics with broad interests in both the fundamental interactions among particles and the development of detectors to study such interactions. Some of the major physics topics he has contributed to include how quarks combine into the particles we actually see following violent interactions, how charge parity symmetry breaking can be measured in the B meson system, and decays and mixing for mesons containing charmed quarks. He has also been involved in devising methods to search for the source of electroweak symmetry breaking, the mechanism by which particles have mass. This search will take us into the new realm beyond the 100 GeV scale.
In the area of detectors, Seiden, has been interested in charged particle tracking detectors of all types and associated readout electronics. He has led the construction of several large drift chambers and silicon strip detectors and been a leader in the exploitation of microelectronics to improve detector measurements. This has involved leadership of several major, international, detector construction projects including the construction of the drift chambers for the MARK II and SLD detectors, built to study Z° decays at the Stanford Linear Accelerator Center. Such projects heavily involve students who use the laboratory facilities at Santa Cruz to contribute directly to the design, testing, and operation of detectors and novel readout electronics.
Seiden has also been the longtime Director of the
Santa Cruz Institute for Particle Physics which provides the organizational
structure for theoretical and experimental particle physics activities at UCSC.
This institute has fostered the significant investment of the
university and government agencies in the particle physics research
program at Santa Cruz.
Signal-to-Noise in Silicon Microstrip Detectors with Binary Readout, J. DeWitt, A. Seiden et al., IEEE Trans. Nucl. Sci. 42, 45 (1995).
Measurement of the Diffractive Structure Function in Deep Inelastic Scattering at HERA, M.A. Derrick, A. Seiden et al., Z. Phys. C68, 569 (1995).
Measurement of Charged and Neutral Current e-p Scattering Cross Sections at High Q², M. Derrick, A. Seiden et al., Phys. Rev. Lett. 75, 1006 (1995).
Searches for New Quarks and Leptons Produced in Z Boson Decays, G.S. Abrams, A. Seiden et al., Phys. Rev. Lett. 63, 2447 (1989).
Measuring CP Violation in the B° anti B° System with Asymmetric Energy e+e- Beams, R. Aleksan, J.E. Bartelt, P. Burchat, and A. Seiden, Phys. Rev. D39, 1293 (1989).
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