Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup>
We search for new resonances, Y, with mass M<sub>Y</sub>, in the range from 30 to 89 GeV, produced via the reaction e+e− → Z<sup>0</sup> →γY, where Y subsequently decays into e+e−, μ+μ− or hadrons. We use 5.5.pb<sup>−1</sup> of data collected in the energy range 8...
Guardado en:
| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1991
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/81642 |
| Aporte de: |
| id |
I19-R120-10915-81642 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física large electron positron collider Resonancia Higgs boson |
| spellingShingle |
Ciencias Exactas Física large electron positron collider Resonancia Higgs boson Dova, María Teresa L3 Collaboration Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| topic_facet |
Ciencias Exactas Física large electron positron collider Resonancia Higgs boson |
| description |
We search for new resonances, Y, with mass M<sub>Y</sub>, in the range from 30 to 89 GeV, produced via the reaction e+e− → Z<sup>0</sup> →γY, where Y subsequently decays into e+e−, μ+μ− or hadrons. We use 5.5.pb<sup>−1</sup> of data collected in the energy range 88.2 ≤ √s ≤ 94.2 GeV, near the Z<sup>0</sup> peak. We obtain the following upper limits, at the 95% confidence level, on the product of the branching ratios: BR(Z<sup>0</sup> → γY) × BR(Y → e+e−) < 2.8 × 10<sup>−4</sup> for 30 < M<sub>Y</sub> < 89, BR(Z<sup>0</sup> →γY × BR(Y → μ+μ−) < 2.3 × 10<sup>−4</sup> for 30 < M<sub>Y</sub> < 89, BR(Z<sup>0</sup>→ γY) × BR(Y → hadrons) < 4.7 × 10<sup>−4</sup> for 30 < M<sub>Y</sub> < 86. These limits are valid for resonances with widths smaller than our mass resolution. |
| format |
Articulo Articulo |
| author |
Dova, María Teresa L3 Collaboration |
| author_facet |
Dova, María Teresa L3 Collaboration |
| author_sort |
Dova, María Teresa |
| title |
Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| title_short |
Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| title_full |
Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| title_fullStr |
Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| title_full_unstemmed |
Search for narrow high-mass resonances in radiative decays of the Z<sup>0</sup> |
| title_sort |
search for narrow high-mass resonances in radiative decays of the z<sup>0</sup> |
| publishDate |
1991 |
| url |
http://sedici.unlp.edu.ar/handle/10915/81642 |
| work_keys_str_mv |
AT dovamariateresa searchfornarrowhighmassresonancesinradiativedecaysofthezsup0sup AT l3collaboration searchfornarrowhighmassresonancesinradiativedecaysofthezsup0sup |
| bdutipo_str |
Repositorios |
| _version_ |
1764820488284012545 |