Publication
Measurement of the relative width difference of the $B^0$-$\bar B^0$ system with the ATLAS detector
| dc.contributor.author | ATLAS collaboration (2855 authors) | |
| dc.contributor.author | Aguilar-Saavedra, Juan Antonio | |
| dc.contributor.author | Amor Dos Santos, Susana Patricia | |
| dc.contributor.author | Anjos, Nuno | |
| dc.contributor.author | Araque, Juan Pedro | |
| dc.contributor.author | Cantrill, Robert | |
| dc.contributor.author | Carvalho, João | |
| dc.contributor.author | Castro, Nuno Filipe | |
| dc.contributor.author | Conde Muiño, Patricia | |
| dc.contributor.author | Da Cunha Sargedas De Sousa, Mario Jose | |
| dc.contributor.author | Fiolhais, Miguel | |
| dc.contributor.author | Galhardo, Bruno | |
| dc.contributor.author | Gomes, Agostinho | |
| dc.contributor.author | Gonçalo, Ricardo | |
| dc.contributor.author | Jorge, Pedro | |
| dc.contributor.author | Lopes, Lourenco | |
| dc.contributor.author | Machado Miguens, Joana | |
| dc.contributor.author | Maio, Amélia | |
| dc.contributor.author | Maneira, José | |
| dc.contributor.author | Oleiro Seabra, Luis Filipe | |
| dc.contributor.author | Onofre, António | |
| dc.contributor.author | Palma, Alberto | |
| dc.contributor.author | Pedro, Rute | |
| dc.contributor.author | Santos, Helena | |
| dc.contributor.author | Saraiva, João | |
| dc.contributor.author | Silva, José | |
| dc.contributor.author | Tavares Delgado, Ademar | |
| dc.contributor.author | Veloso, Filipe | |
| dc.contributor.author | Wolters, Helmut | |
| dc.date.accessioned | 2019-02-04T10:04:49Z | |
| dc.date.available | 2019-02-04T10:04:49Z | |
| dc.date.issued | 2016-06-14 | |
| dc.date.updated | 2019-02-04T10:04:49Z | |
| dc.description.abstract | This paper presents the measurement of the relative width difference ΔΓ$_{d}$ /Γ$_{d}$ of the $ {B}^0\hbox{-} {\overline{B}}^0 $ system using the data collected by the ATLAS experiment at the LHC in pp collisions at $ \sqrt{s}=7 $ TeV and $ \sqrt{s}=8 $ TeV and corresponding to an integrated luminosity of 25.2 fb$^{−1}$. The value of ΔΓ$_{d}$ /Γ$_{d}$ is obtained by comparing the decay-time distributions of B$^{0}$ → J/ψK$_{S}$ and B$^{0}$ → J/ψK$^{*0}$(892) decays. The result is ΔΓ$_{d}$ /Γ$_{d}$ = (−0.1±1.1 (stat.)± 0.9 (syst.)) × 10$^{−2}$. Currently, this is the most precise single measurement of ΔΓ$_{d}$ /Γ$_{d}$ . It agrees with the Standard Model prediction and the measurements by other experiments. | |
| dc.description.version | Peer Reviewed | |
| dc.identifier | JHEP 1606 (2016) 081 JHEP06 (2016) 081; DOI 10.1007/JHEP06(2016)081 | |
| dc.identifier.uri | http://dx.doi.org/10.1007/JHEP06(2016)081 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/27093 | |
| dc.language.iso | eng | |
| dc.title | Measurement of the relative width difference of the $B^0$-$\bar B^0$ system with the ATLAS detector | |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt |
| rcaap.type | article |