UvA-DARE (Digital Academic Repository) Link to publication Citation for published version (APA): Inclusive search for the charmless radiative decay of the b-quark (b L3 Collaboration

General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 29 Jun 2019 Physics Letters B 317 ( 1993 ) We report on the search for the electromagnetic penguin decay b --* s7 at v~ ~ mz. We find no evidence for a signal and place an upper limit on the decay rate Br(b ~ s~,) < 1.2 × 10 -3 at 90% C.L