Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector
With an integrated luminosity of 2.47 fb-1 recorded by the ATLAS experiment at the LHC, the exclusive decays Bs0→J/ψφ and Bd0→J/ψK∗0 of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed Bs0→J/ψφ and Bd0→J/ψK∗0 yields, t...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2015
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/87036 |
| Aporte de: |
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I19-R120-10915-87036 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Proton-proton collisions Decay Branching fractions |
| spellingShingle |
Física Proton-proton collisions Decay Branching fractions Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| topic_facet |
Física Proton-proton collisions Decay Branching fractions |
| description |
With an integrated luminosity of 2.47 fb-1 recorded by the ATLAS experiment at the LHC, the exclusive decays Bs0→J/ψφ and Bd0→J/ψK∗0 of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed Bs0→J/ψφ and Bd0→J/ψK∗0 yields, the quantity (fs/fd)[B(Bs0→J/ψφ)/B(Bd0→J/ψK∗0)] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(Bs0→J/ψφ)/B(Bd0→J/ψK∗0)] yields (fs/fd)=0.240±0.004(stat)±0.010(syst)±0.017(th). This result is based on a new approach that provides a significant improvement of the world average. |
| format |
Articulo Articulo |
| author |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_sort |
Alconada Verzini, María Josefina |
| title |
Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| title_short |
Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| title_full |
Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| title_fullStr |
Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| title_full_unstemmed |
Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at √s =7 TeV with the ATLAS Detector |
| title_sort |
determination of the ratio of b -quark fragmentation fractions fs /fd in pp collisions at √s =7 tev with the atlas detector |
| publishDate |
2015 |
| url |
http://sedici.unlp.edu.ar/handle/10915/87036 |
| work_keys_str_mv |
AT alconadaverzinimariajosefina determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT alonsofrancisco determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT arduhfranciscoanuar determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT dovamariateresa determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT monticellifernandogabriel determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT wahlberghernanpablo determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector AT theatlascollaboration determinationoftheratioofbquarkfragmentationfractionsfsfdinppcollisionsats7tevwiththeatlasdetector |
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Repositorios |
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1764820489579003905 |