Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV
We present the results of a search for new particles that lead to a Z boson plus jets in pp̄ collisions at s=1.96TeV using the Collider Detector at Fermilab (CDF II). A data sample with a luminosity of 1.06fb-1 collected using Z boson decays to ee and μμ is used. We describe a completely data-based...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2007
|
| _version_ | 1826262234933755904 |
|---|---|
| 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 present the results of a search for new particles that lead to a Z boson plus jets in pp̄ collisions at s=1.96TeV using the Collider Detector at Fermilab (CDF II). A data sample with a luminosity of 1.06fb-1 collected using Z boson decays to ee and μμ is used. We describe a completely data-based method to predict the dominant background from standard model Z+jet events. This method can be similarly applied to other analyses requiring background predictions in multijet environments, as shown when validating the method by predicting the background from W+jets in tt̄ production. No significant excess above the background prediction is observed, and a limit is set using a fourth generation quark model to quantify the acceptance. Assuming BR(b′→bZ)=100% and using a leading-order calculation of the b′ cross section, b′ quark masses below 268GeV/c2 are excluded at 95% confidence level. © 2007 The American Physical Society. |
| first_indexed | 2024-03-06T19:33:10Z |
| format | Journal article |
| id | oxford-uuid:1e2943d3-b6a0-4f1f-aa91-f0a616b4a563 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:33:10Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:1e2943d3-b6a0-4f1f-aa91-f0a616b4a5632022-03-26T11:14:50ZSearch for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1e2943d3-b6a0-4f1f-aa91-f0a616b4a563EnglishSymplectic 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 present the results of a search for new particles that lead to a Z boson plus jets in pp̄ collisions at s=1.96TeV using the Collider Detector at Fermilab (CDF II). A data sample with a luminosity of 1.06fb-1 collected using Z boson decays to ee and μμ is used. We describe a completely data-based method to predict the dominant background from standard model Z+jet events. This method can be similarly applied to other analyses requiring background predictions in multijet environments, as shown when validating the method by predicting the background from W+jets in tt̄ production. No significant excess above the background prediction is observed, and a limit is set using a fourth generation quark model to quantify the acceptance. Assuming BR(b′→bZ)=100% and using a leading-order calculation of the b′ cross section, b′ quark masses below 268GeV/c2 are excluded at 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 new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title | Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title_full | Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title_fullStr | Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title_full_unstemmed | Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title_short | Search for new particles leading to Z+jets final states in pp̄ collisions at s=1.96TeV |
| title_sort | search for new particles leading to z jets final states in pp collisions at s 1 96tev |
| work_keys_str_mv | AT aaltonent searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT abulenciaa searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT adelmanj searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT affoldert searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT akimotot searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT albrowmg searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT amerios searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT amideid searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT anastassova searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT anikeevk searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT annovia searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT antosj searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT aokim searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT apollinarig searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT arisawat searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT artikova searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT ashmanskasw searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT attala searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT aurisanoa searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT azfarf searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT azzibacchettap searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT azzurrip searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT bacchettan searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT badgettw searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev AT barbarogaltieria searchfornewparticlesleadingtozjetsfinalstatesinppcollisionsats196tev |