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Investigation of background subtraction techniques for high mass dilepton physics

P. Crochet·P. Braun-Munzinger
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Abstract

The signals in high mass dilepton spectroscopy with nucleus-nucleus collisions at collider energies are superimposed on a generally large combinatorial background. Because this background contains a significant correlated like-sign component originating from B meson decays, the "like-sign" method to determine the background is inappropriate. We discuss strategies to deal with the correlations in the background. By taking advantage of the B meson oscillation mechanism and of the particular features of B meson decays a new method to measure the bbbar production cross-section is proposed.

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P. Crochet, P. Braun-Munzinger. 2001-09-06. Investigation of background subtraction techniques for high mass dilepton physics. https://doi.org/10.1016/s0168-9002(01)02005-8

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