Quasi-model-independent search for new physics at large transverse momentum

• Published in: Physical review. D 2001, Vol.64 (1), Article 012004
• Main Authors: Abazov, V. M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B. S., Adams, D. L., Adams, M., Ahmed, S. N., Alexeev, G. D., Alves, G. A., Amos, N., Anderson, E. W., Baarmand, M. M., Babintsev, V. V., Babukhadia, L., Bacon, T. C., Baden, A., Baldin, B., Balm, P. W., Banerjee, S., Barberis, E., Baringer, P., Barreto, J., Bartlett, J. F., Bassler, U., Bauer, D., Bean, A., Begel, M., Belyaev, A., Beri, S. B., Bernardi, G., Bertram, I., Besson, A., Beuselinck, R., Bezzubov, V. A., Bhat, P. C., Bhatnagar, V., Bhattacharjee, M., Blazey, G., Blessing, S., Boehnlein, A., Bojko, N. I., Borcherding, F., Bos, K., Brandt, A., Breedon, R., Briskin, G., Brock, R., Brooijmans, G., Bross, A., Buchholz, D., Buehler, M., Buescher, V., Burtovoi, V. S., Butler, J. M., Canelli, F., Carvalho, W., Casey, D., Casilum, Z., Castilla-Valdez, H., Chakraborty, D., Chan, K. M., Chekulaev, S. V., Cho, D. K., Choi, S., Chopra, S., Christenson, J. H., Chung, M., Claes, D., Clark, A. R., Cochran, J., Coney, L., Connolly, B., Cooper, W. E., Coppage, D., Cummings, M. A. C., Cutts, D., Davis, G. A., Davis, K., De, K., de Jong, S. J., Del Signore, K., Demarteau, M., Demina, R., Demine, P., Denisov, D., Denisov, S. P., Desai, S., Diehl, H. T., Diesburg, M., Di Loreto, G., Doulas, S., Draper, P., Ducros, Y., Dudko, L. V., Duensing, S., Duflot, L., Dugad, S. R., Dyshkant, A.
• Format: Article
• Language: English
• Subjects: FERMILAB TEVATRON; High Energy Physics - Experiment; PARTICLE ACCELERATORS; PHYSICS; SENSITIVITY; STANDARD MODEL; TESTING; TRANSVERSE MOMENTUM
• ISSN: 0556-2821; 2470-0010; 1089-4918; 2470-0029
• DOI: 10.1103/PhysRevD.64.012004

We apply a quasi-model-independent strategy ("Sleuth") to search for new high p_T physics in approximately 100 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV collected by the DZero experiment during 1992-1996 at the Fermilab Tevatron. Over thirty-two e mu X, W+jets-like, Z+jets-like, and 3(lepton/photon)X exclusive final states are systematically analyzed for hints of physics beyond the standard model. Simultaneous sensitivity to a variety of models predicting new phenomena at the electroweak scale is demonstrated by testing the method on a particular signature in each set of final states. No evidence of new high p_T physics is observed in the course of this search, and we find that 89% of an ensemble of hypothetical similar experimental runs would have produced a final state with a candidate signal more interesting than the most interesting observed in these data.