Enhancement of charm signal significance in hadroproduction

Autor:	John C. Fisher
Rok vydání:	1996
Předmět:	Physics Set (abstract data type) Nuclear and High Energy Physics Particle physics Meson Range (statistics) Value (computer science) High Energy Physics::Experiment Multiplicity (mathematics) Charge (physics) Charm (quantum number) Instrumentation Signal
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 372:458-468
ISSN:	0168-9002
DOI:	10.1016/0168-9002(95)01314-8
Popis:	Given several sets of candidate charm decay events, where some candidates are true decays but most are random background coincidences, it is shown that signal significance can be maximized by assigning to the candidates in each set a weight equal to the ratio of signal to variance in that set. This method improves on the traditional analysis which assigns unit weight to selected candidate events and zero weight to the others. When the sets are defined along a range of some parameter the assigned weights constitute a smooth function of the value of the parameter. The technique is generalized to a multiplicity of parameters, and the utility of the method is demonstrated by application to the charmed meson decay D0 → K−π+ (plus charge conjugate) signal in Fermilab Experiment E769.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aad88813230f1e17cb1f85b71e300214 https://doi.org/10.1016/0168-9002(95)01314-8 Zobrazit plný text záznamu Full Text from ScienceDirect