Publication: A measurement of the K + → π + μ + μ− decay
Дата
2022
Авторы
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
A sample of 2.8 × 104K+ → π+μ+μ− candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017–2018. The model-independent branching fraction is measured to be (9.15 ± 0.08) × 10−8, a factor three more precise than previous measurements. The decay form factor is presented as a function of the squared dimuon mass. A measurement of the form factor parameters and their uncertainties is performed using a description based on Chiral Perturbation Theory at O(p6). © 2022, The Author(s).
Описание
Ключевые слова
Branching fraction , Fixed Target Experiments , Flavour Changing Neutral Currents , Rare Decay
Цитирование
A measurement of the K + → π + μ + μ− decay / Cortina Gil, E. [et al.] // Journal of High Energy Physics. - 2022. - 2022. - № 11. - 10.1007/JHEP11(2022)011
URI
https://www.doi.org/10.1007/JHEP11(2022)011
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https://openrepository.mephi.ru/handle/123456789/27649
https://www.scopus.com/record/display.uri?eid=2-s2.0-85141191062&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000879172600004
https://openrepository.mephi.ru/handle/123456789/27649