Search for new π0-like particles produced in association with a τ-lepton pair
We report on a search in e + e − annihilations for new π 0 -like particles produced in association with a τ -lepton pair. These objects, with a similar mass and similar decay modes to π 0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor o...
| Authors: | ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2014 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/131200 |
| Online Access: | https://hdl.handle.net/2445/131200 |
| Access Level: | Open access |
| Keyword: | Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) |
| _version_ | 1878733537781219328 |
|---|---|
| author | Graugés Pous, Eugeni |
| author2 | BABAR Collaboration |
| author2_role | author |
| author_browse | BABAR Collaboration Graugés Pous, Eugeni |
| author_facet | Graugés Pous, Eugeni BABAR Collaboration |
| author_role | author |
| collection | Recercat. Dipósit de la Recerca de Catalunya |
| description | We report on a search in e + e − annihilations for new π 0 -like particles produced in association with a τ -lepton pair. These objects, with a similar mass and similar decay modes to π 0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_581e7e8b6d5d61a22c692ee4ae0a3bac |
| institution | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:recercat.cat:2445/131200 |
| publishDate | 2014 |
| publishDateSort | 2014 |
| publisher | American Physical Society |
| publisherStr | American Physical Society |
| reponame_str | Recercat. Dipósit de la Recerca de Catalunya |
| spelling | Search for new π0-like particles produced in association with a τ-lepton pair Graugés Pous, Eugeni BABAR Collaboration Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) We report on a search in e + e − annihilations for new π 0 -like particles produced in association with a τ -lepton pair. These objects, with a similar mass and similar decay modes to π 0 mesons, could provide an explanation for the non-asymptotic behavior of the pion-photon transition form factor observed by the BABAR Collaboration. No significant signal is observed, and limits on the production cross section at the level of 73 fb or 370 fb, depending on the model parameters, are determined at 90% confidence level. These upper limits lie below the cross section values needed to explain the BABAR form factor data. American Physical Society https://hdl.handle.net/2445/131200 |
| spellingShingle | Search for new π0-like particles produced in association with a τ-lepton pair Graugés Pous, Eugeni Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) |
| status_str | publishedVersion |
| title | Search for new π0-like particles produced in association with a τ-lepton pair |
| title_full | Search for new π0-like particles produced in association with a τ-lepton pair |
| title_fullStr | Search for new π0-like particles produced in association with a τ-lepton pair |
| title_full_unstemmed | Search for new π0-like particles produced in association with a τ-lepton pair |
| title_short | Search for new π0-like particles produced in association with a τ-lepton pair |
| title_sort | Search for new π0-like particles produced in association with a τ-lepton pair |
| topic | Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) |
| topic_facet | Física de partícules Experiments Leptons (Física nuclear) Particle physics Leptons (Nuclear physics) |
| url | https://hdl.handle.net/2445/131200 |