First search for exotic Z Boson decays into photons and neutral pions in hadron collisions.
A search for forbidden and exotic Z boson decays in the diphoton mass spectrum is presented for the first time in hadron collisions, based on data corresponding to 10.0 fb(-1) of integrated luminosity from proton-antiproton collisions at √s = 1.96 TeV collected by the CDF experiment. No evidence of...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2014
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| _version_ | 1826284097830387712 |
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| author | Aaltonen, T Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Behari, S |
| author_facet | Aaltonen, T Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Behari, S |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | A search for forbidden and exotic Z boson decays in the diphoton mass spectrum is presented for the first time in hadron collisions, based on data corresponding to 10.0 fb(-1) of integrated luminosity from proton-antiproton collisions at √s = 1.96 TeV collected by the CDF experiment. No evidence of signal is observed, and 95% credibility level Bayesian upper limits are set on the branching ratios of decays of the Z boson to a photon and neutral pion (which is detected as a photon), a pair of photons, and a pair of neutral pions. The observed branching ratio limits are 2.01 × 10(-5) for Z → π(0)γ, 1.46 × 10(-5) for Z → γγ, and 1.52 × 10(-5) for Z → π(0)π(0). The Z → π(0)γ and Z → γγ limits improve the most stringent results from other experiments by factors of 2.6 and 3.6, respectively. The Z → π(0)π(0) branching ratio limit is the first experimental result on this decay. |
| first_indexed | 2024-03-07T01:08:45Z |
| format | Journal article |
| id | oxford-uuid:8c3e7a6a-0ab6-4d6e-b1ad-3a906ebd2a6c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:08:45Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:8c3e7a6a-0ab6-4d6e-b1ad-3a906ebd2a6c2022-03-26T22:43:30ZFirst search for exotic Z Boson decays into photons and neutral pions in hadron collisions.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8c3e7a6a-0ab6-4d6e-b1ad-3a906ebd2a6cEnglishSymplectic Elements at OxfordAmerican Physical Society2014Aaltonen, TAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GAppel, JArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBae, TBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBedeschi, FBehari, SA search for forbidden and exotic Z boson decays in the diphoton mass spectrum is presented for the first time in hadron collisions, based on data corresponding to 10.0 fb(-1) of integrated luminosity from proton-antiproton collisions at √s = 1.96 TeV collected by the CDF experiment. No evidence of signal is observed, and 95% credibility level Bayesian upper limits are set on the branching ratios of decays of the Z boson to a photon and neutral pion (which is detected as a photon), a pair of photons, and a pair of neutral pions. The observed branching ratio limits are 2.01 × 10(-5) for Z → π(0)γ, 1.46 × 10(-5) for Z → γγ, and 1.52 × 10(-5) for Z → π(0)π(0). The Z → π(0)γ and Z → γγ limits improve the most stringent results from other experiments by factors of 2.6 and 3.6, respectively. The Z → π(0)π(0) branching ratio limit is the first experimental result on this decay. |
| spellingShingle | Aaltonen, T Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Bae, T Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bedeschi, F Behari, S First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title | First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title_full | First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title_fullStr | First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title_full_unstemmed | First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title_short | First search for exotic Z Boson decays into photons and neutral pions in hadron collisions. |
| title_sort | first search for exotic z boson decays into photons and neutral pions in hadron collisions |
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