Model-Independent Observation of Exotic Contributions to B0→J/ψK+π− Decays; Physical Review Letters; Vol. 122, iss. 15
| Parent link: | Physical Review Letters Vol. 122, iss. 15.— 2019.— [152002, 10 p.] |
|---|---|
| Corporate Authors: | , |
| Outros autores: | , , , , , |
| Summary: | Title screen An angular analysis of B0→J/ψK+π− decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb detector. The m(K+π−) spectrum is divided into fine bins. In each m(K+π−) bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by K∗ resonances is examined, making minimal assumptions about the K+π− system. The data reject the K∗-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the m(J/ψπ−) vs m(K+π−) plane suggests structures near m(J/ψπ−)=4200 and 4600 MeV. |
| Idioma: | inglés |
| Publicado: |
2019
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| Subjects: | |
| Acceso en liña: | https://doi.org/10.1103/PhysRevLett.122.152002 |
| Formato: | MixedMaterials Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663334 |
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| 200 | 1 | |a Model-Independent Observation of Exotic Contributions to B0→J/ψK+π− Decays |f R. Aaij, C. A. Beteta, B. Adeva [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 24 tit.] | ||
| 330 | |a An angular analysis of B0→J/ψK+π− decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb detector. The m(K+π−) spectrum is divided into fine bins. In each m(K+π−) bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by K∗ resonances is examined, making minimal assumptions about the K+π− system. The data reject the K∗-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the m(J/ψπ−) vs m(K+π−) plane suggests structures near m(J/ψπ−)=4200 and 4600 MeV. | ||
| 461 | |t Physical Review Letters | ||
| 463 | |t Vol. 122, iss. 15 |v [152002, 10 p.] |d 2019 | ||
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| 701 | 1 | |a Shapkin |b M. M. |g Mikhail Mikhaylovich | |
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