Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/27946COMPARTIR / EXPORTAR:
 SHARE
 CORE
BASE
|
|
| Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
| Título: | Measurement of W-Boson Polarization in Top-Quark Decay in p(p)over-bar Collisions at root s=1.96 TeV |
Autor: | Aaltonen, T.; Cabrera, Susana CSIC ORCID; Cuenca Almenar, Cristóbal CSIC; Álvarez González, B.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID | Fecha de publicación: | 23-jul-2010 | Editor: | American Physical Society | Citación: | Physical Review Letters 105(4): 042002 (2010) | Resumen: | We report measurements of the polarization of W bosons from top-quark decays using 2.7 fb(-1) of p (p) over bar collisions collected by the CDF II detector. Assuming a top-quark mass of 175 GeV/c(2), three measurements are performed. A simultaneous measurement of the fraction of longitudinal (f(0)) and right-handed (f(0)) W bosons yields the model- independent results f(0) =0. 88 +/- 0.11(stat) +/- 0.06(syst) and f(+) = 0.15 +/- 0.07(stat) +/- 0.06(syst) with a correlation coefficient of -0.59. A measurement of f(0) [f(+)] constraining f(+) [f(0)] to its standard model value of 0.0 [0.7] yields f(0) 0.70 + 0.07(stat) +/- 0.04(syst) [f(+) - 0.01 +/- 0.02(stat) +/- 0.05(syst)]. All these results are consistent with standard model expectations. We achieve the single most precise measurements of f(0) for both the model- independent and modeldependent determinations. | Descripción: | 8 páginas, 2 figuras, 2 tablas.-- PACS numbers: 14.65.Ha, 13.85.Ni, 13.85.Qk, 14.70.Fm.-- CDF Collaboration: et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.105.042002 | URI: | http://hdl.handle.net/10261/27946 | DOI: | 10.1103/PhysRevLett.105.042002 | ISSN: | 0031-9007 |
| Aparece en las colecciones: | (IFIC) Artículos (IFCA) Artículos |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| e042002.pdf | 232,03 kB | Adobe PDF |  Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
45
checked on 20-mar-2024
WEB OF SCIENCETM
Citations
30
checked on 26-feb-2024
Page view(s)
312
checked on 18-abr-2024
Download(s)
179
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.