{"id":36532,"date":"2026-06-08T13:16:27","date_gmt":"2026-06-08T13:16:27","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/angular-analysis-of-the-btopimumu-decay\/"},"modified":"2026-09-17T11:18:19","modified_gmt":"2026-09-17T11:18:19","slug":"angular-analysis-of-the-btopimumu-decay","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/angular-analysis-of-the-btopimumu-decay\/","title":{"rendered":"Angular analysis of the $B^+\\to\\pi^+\\mu^+\\mu^-$ decay"},"content":{"rendered":"<p>This paper presents the first measurement of the forward-backward asymmetry, $A_{\\rm FB}$, and the flat term, $F_{H}$, that parameterise the angular distribution of the $B^+\\to\\pi^+\\mu^+\\mu^-$ decay. The proton-proton collision dataset used in the analysis corresponds to an integrated luminosity of 9 $fb^{-1}$, collected with the LHCb experiment between 2011 and 2018. The analysis is performed in two intervals of dimuon mass squared, one above and one below the region containing the $J\\mskip -3mu\/\\mskip -2mu\\psi$ and $\\psi(2S)$ narrow charmonium resonances. The Standard Model predictions lie within the obtained 68\\% confidence level interval in the high-mass and within the 99\\% interval in the low-mass region.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper presents the first measurement of the forward-backward asymmetry, $A_{\\rm FB}$, and the flat term, $F_{H}$, that parameterise the angular distribution of the $B^+\\to\\pi^+\\mu^+\\mu^-$ decay. The proton-proton collision dataset used in the analysis corresponds to an integrated luminosity of 9 $fb^{-1}$, collected with the LHCb experiment between 2011 and 2018. The analysis is performed in two intervals of dimuon mass squared, one above and one below the region containing [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-36532","publication","type-publication","status-publish","hentry","publication-type-article"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/36532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/users\/14"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/36532\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=36532"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=36532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}