Search for exclusive γγ production in hadron-hadron collisions
We have searched for exclusive γγ production in proton-antiproton collisions at s=1.96TeV, using 532pb-1 of integrated luminosity taken by the run II Collider Detector at Fermilab. The event signature requires two electromagnetic showers, each with transverse energy ET>5GeV and pseudorapidity...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2007
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| _version_ | 1826296883649183744 |
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| author | Aaltonen, T Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A |
| author_facet | Aaltonen, T Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | We have searched for exclusive γγ production in proton-antiproton collisions at s=1.96TeV, using 532pb-1 of integrated luminosity taken by the run II Collider Detector at Fermilab. The event signature requires two electromagnetic showers, each with transverse energy ET>5GeV and pseudorapidity |η|<1.0, with no other particles detected in the event. Three candidate events are observed. We discuss the consistency of the three events with γγ, π0π0, or ηη production. The probability that other processes fluctuate to 3 events is 1.7×10-4. An upper limit on the cross section of pp̄→p+γγ+p̄ production is set at 410 fb with 95% confidence level. © 2007 The American Physical Society. |
| first_indexed | 2024-03-07T04:23:11Z |
| format | Journal article |
| id | oxford-uuid:cbb83c66-78a8-43df-8d21-bb2154a513b4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:23:11Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:cbb83c66-78a8-43df-8d21-bb2154a513b42022-03-27T07:16:55ZSearch for exclusive γγ production in hadron-hadron collisionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cbb83c66-78a8-43df-8d21-bb2154a513b4EnglishSymplectic Elements at Oxford2007Aaltonen, TAbulencia, AAdelman, JAffolder, TAkimoto, TAlbrow, MGAmerio, SAmidei, DAnastassov, AAnikeev, KAnnovi, AAntos, JAoki, MApollinari, GArisawa, TArtikov, AAshmanskas, WAttal, AAurisano, AAzfar, FAzzi-Bacchetta, PAzzurri, PBacchetta, NBadgett, WBarbaro-Galtieri, AWe have searched for exclusive γγ production in proton-antiproton collisions at s=1.96TeV, using 532pb-1 of integrated luminosity taken by the run II Collider Detector at Fermilab. The event signature requires two electromagnetic showers, each with transverse energy ET>5GeV and pseudorapidity |η|<1.0, with no other particles detected in the event. Three candidate events are observed. We discuss the consistency of the three events with γγ, π0π0, or ηη production. The probability that other processes fluctuate to 3 events is 1.7×10-4. An upper limit on the cross section of pp̄→p+γγ+p̄ production is set at 410 fb with 95% confidence level. © 2007 The American Physical Society. |
| spellingShingle | Aaltonen, T Abulencia, A Adelman, J Affolder, T Akimoto, T Albrow, MG Amerio, S Amidei, D Anastassov, A Anikeev, K Annovi, A Antos, J Aoki, M Apollinari, G Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Azzi-Bacchetta, P Azzurri, P Bacchetta, N Badgett, W Barbaro-Galtieri, A Search for exclusive γγ production in hadron-hadron collisions |
| title | Search for exclusive γγ production in hadron-hadron collisions |
| title_full | Search for exclusive γγ production in hadron-hadron collisions |
| title_fullStr | Search for exclusive γγ production in hadron-hadron collisions |
| title_full_unstemmed | Search for exclusive γγ production in hadron-hadron collisions |
| title_short | Search for exclusive γγ production in hadron-hadron collisions |
| title_sort | search for exclusive γγ production in hadron hadron collisions |
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