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Author  |
LHCb Collaboration (Aaij, R. et al); Oyanguren, A.; Ruiz Valls, P. | ||||
| Title | Determination of the X(3872) Meson Quantum Numbers | Type | Journal Article | ||
| Year | 2013 | Publication | Physical Review Letters | Abbreviated Journal | Phys. Rev. Lett. |
| Volume | 110 | Issue | 22 | Pages | 222001 - 8pp |
| Keywords | |||||
| Abstract | The quantum numbers of the X(3872) meson are determined to be J(PC) = 1(++) based on angular correlations in B+ -> X(3872)K+ decays, where X(3872) -> pi(+) pi(-) j/psi and J/psi -> pi(+) mu(-). The data correspond to 1.0 fb(-1) of pp collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J(PC) = 2(-+) is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X(3872) state. | ||||
| Address | CBPF, Rio De Janeiro, Brazil | ||||
| Corporate Author | Thesis | ||||
| Publisher | Amer Physical Soc | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0031-9007 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000319682200007 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
| Call Number | IFIC @ pastor @ | Serial | 1466 | ||
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