{"id":32259,"date":"2026-01-21T17:01:36","date_gmt":"2026-01-21T17:01:36","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/search-for-resonances-decaying-to-photon-pairs-with-masses-between-4-9-and-19-4-gev\/"},"modified":"2026-06-08T13:19:00","modified_gmt":"2026-06-08T13:19:00","slug":"search-for-resonances-decaying-to-photon-pairs-with-masses-between-4-9-and-19-4-gev","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/search-for-resonances-decaying-to-photon-pairs-with-masses-between-4-9-and-19-4-gev\/","title":{"rendered":"Search for resonances decaying to photon pairs with masses between 4.9 and 19.4 {GeV}"},"content":{"rendered":"<p>A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb detector during 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.1 fb-1. The same strategy and sample is used to search for the decays of the B0s, B0 and $\\eta_b$ mesons into photon pairs.<\/p>\n<p>No significant excess is found. Upper limits on the photon-pair branching fraction times the cross-section of ALP production are determined as a function of the ALP mass.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A search is presented for axion-like particles (ALPs) with masses between 4.9 and 19.4 GeV decaying to a pair of photons, using proton-proton collisions collected with the LHCb detector during 2018 at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 2.1 fb-1. The same strategy and sample is used to search for the decays of the B0s, B0 and $\\eta_b$ mesons into photon pairs. No significant [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-32259","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\/32259","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\/12"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/32259\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=32259"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=32259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}