First observation of the decay $B_{s2}^(5840)^0 \to B^{+} K^-$ and studies of excited $B_s$ mesons
Properties of the orbitally excited (L=1) $B_s$ states are studied using 1.0 fb$^{-1}$ of pp collisions at $\sqrt{s} =7$ TeV collected with the LHCb detector. The first observation of the $B_{s2}^*(5840)^0$ meson decaying to $B^{*+} K^- is reported, and the corresponding branching fraction measured...
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| Veröffentlicht in: | Physical review letters 2013, Vol.110 |
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| creator | Aaij, R. Adrover, C. Aslanides, E. Cogan, J. Legac, R. Leroy, O. Mancinelli, G. Maurice, E. Perrin-Terrin, M. Sapunov, M. Serrano, J. Tsaregorodtsev, A. Barsuk, S. Callot, O. He, J. Jean-Marie, B. Lefrançois, J. Machefert, F. Martin Sanchez, A. Nicol, M. Robbe, P. Schune, M.-H. Viaud, B. Videau, I. Ben-Haim, E. Benayoun, M. David, P. del Buono, L. Martens, A. Ajaltouni, Ziad Zj Deschamps, O. Cogneras, E. El Rifai, I. Henrard, Pierre Hoballah, M. Jahjah-Hussein, Marwa Lefèvre, R. Li Gioi, L. Monteil, S. Niess, V. Perret, Pascal Roa Romero, Diego Alejandro Sobczak, Krzysztof Grzegorz de Bonis, I. Decamp, D. Ghez, Ph Hopchev, P. Lees, J.-P. Machikhiliyan, I.V. Minard, M.-N. Pietrzyk, B. Qian, W. t'Jampens, S. Tisserand, V. Tournefier, E. |
| description | Properties of the orbitally excited (L=1) $B_s$ states are studied using 1.0 fb$^{-1}$ of pp collisions at $\sqrt{s} =7$ TeV collected with the LHCb detector. The first observation of the $B_{s2}^*(5840)^0$ meson decaying to $B^{*+} K^- is reported, and the corresponding branching fraction measured relative to the $B^+ K^-$ decay mode. The $B_{s1}(5830)^0 \to B^{*+} K^-$ decay is observed as well. The width of the $B_{s2}^*(5840)^0$ state is measured for the first time and the masses of the two states are determined with the highest precision to date. The observation of the $B_{s2}^*(5840)^0 \to B^{*+} K^-$ decay favours the spin-parity assignment $J^P = 2^+$ for the $B_{s2}^*(5840)^0$ meson. In addition, the most precise measurement of the mass difference $m(B^{*+})-m(B^+) = 45.01 \pm 0.30 (stat) \pm 0.23 (syst)$ MeV/$c^2$ is obtained. |
| doi_str_mv | 10.1103/PhysRevLett.110.151803 |
| format | Article |
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The first observation of the $B_{s2}^*(5840)^0$ meson decaying to $B^{*+} K^- is reported, and the corresponding branching fraction measured relative to the $B^+ K^-$ decay mode. The $B_{s1}(5830)^0 \to B^{*+} K^-$ decay is observed as well. The width of the $B_{s2}^*(5840)^0$ state is measured for the first time and the masses of the two states are determined with the highest precision to date. The observation of the $B_{s2}^*(5840)^0 \to B^{*+} K^-$ decay favours the spin-parity assignment $J^P = 2^+$ for the $B_{s2}^*(5840)^0$ meson. In addition, the most precise measurement of the mass difference $m(B^{*+})-m(B^+) = 45.01 \pm 0.30 (stat) \pm 0.23 (syst)$ MeV/$c^2$ is obtained.</description><subject>High Energy Physics - Experiment</subject><subject>Physics</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqVjs1Kw0AURgdRMP68gtxFFkpJvTc_Tbq0xVKwCxGXkmHa3JKRNlNyx2AofXcN-AKuPjicA59Sd4RjIkweX-te3rhbsfcDGFNGBSZnKiDMp1FOlJ6rADGhaIqYX6orkU9EpHhSBGq9sK14cGvhtjPeugbcFnzNUPHG9BDO9FHiU3mfFSk-lAgf3sGsPI5O8FJGIZimAvFflWUZQv7eWM_VkEkIexbXyI262Jqd8O3fXqvR4vl9voxqs9OH1u5N22tnrF4-rbRt4kOif39meTqhjpL_2T9uglA5</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>Aaij, R.</creator><creator>Adrover, C.</creator><creator>Aslanides, E.</creator><creator>Cogan, J.</creator><creator>Legac, R.</creator><creator>Leroy, O.</creator><creator>Mancinelli, G.</creator><creator>Maurice, 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Romero, Diego Alejandro</au><au>Sobczak, Krzysztof Grzegorz</au><au>de Bonis, I.</au><au>Decamp, D.</au><au>Ghez, Ph</au><au>Hopchev, P.</au><au>Lees, J.-P.</au><au>Machikhiliyan, I.V.</au><au>Minard, M.-N.</au><au>Pietrzyk, B.</au><au>Qian, W.</au><au>t'Jampens, S.</au><au>Tisserand, V.</au><au>Tournefier, E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First observation of the decay $B_{s2}^(5840)^0 \to B^{+} K^-$ and studies of excited $B_s$ mesons</atitle><jtitle>Physical review letters</jtitle><date>2013</date><risdate>2013</risdate><volume>110</volume><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Properties of the orbitally excited (L=1) $B_s$ states are studied using 1.0 fb$^{-1}$ of pp collisions at $\sqrt{s} =7$ TeV collected with the LHCb detector. The first observation of the $B_{s2}^*(5840)^0$ meson decaying to $B^{*+} K^- is reported, and the corresponding branching fraction measured relative to the $B^+ K^-$ decay mode. The $B_{s1}(5830)^0 \to B^{*+} K^-$ decay is observed as well. The width of the $B_{s2}^*(5840)^0$ state is measured for the first time and the masses of the two states are determined with the highest precision to date. The observation of the $B_{s2}^*(5840)^0 \to B^{*+} K^-$ decay favours the spin-parity assignment $J^P = 2^+$ for the $B_{s2}^*(5840)^0$ meson. In addition, the most precise measurement of the mass difference $m(B^{*+})-m(B^+) = 45.01 \pm 0.30 (stat) \pm 0.23 (syst)$ MeV/$c^2$ is obtained.</abstract><pub>American Physical Society</pub><doi>10.1103/PhysRevLett.110.151803</doi><orcidid>https://orcid.org/0000-0001-7194-7566</orcidid><orcidid>https://orcid.org/0000-0003-4774-2194</orcidid><orcidid>https://orcid.org/0000-0002-7047-6042</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0001-8179-417X</orcidid><orcidid>https://orcid.org/0000-0003-4249-6641</orcidid><orcidid>https://orcid.org/0000-0002-3568-1956</orcidid><orcidid>https://orcid.org/0000-0002-8933-9427</orcidid><orcidid>https://orcid.org/0000-0002-9018-1639</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid><orcidid>https://orcid.org/0000-0003-2489-7812</orcidid><orcidid>https://orcid.org/0000-0001-8179-417X</orcidid><orcidid>https://orcid.org/0000-0001-7194-7566</orcidid><orcidid>https://orcid.org/0000-0003-4249-6641</orcidid><orcidid>https://orcid.org/0000-0002-9018-1639</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0003-2489-7812</orcidid><orcidid>https://orcid.org/0000-0003-4774-2194</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid><orcidid>https://orcid.org/0000-0002-8933-9427</orcidid><orcidid>https://orcid.org/0000-0002-7047-6042</orcidid><orcidid>https://orcid.org/0000-0002-3568-1956</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2013, Vol.110 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_in2p3_00757461v1 |
| source | American Physical Society Journals |
| subjects | High Energy Physics - Experiment Physics |
| title | First observation of the decay $B_{s2}^(5840)^0 \to B^{+} K^-$ and studies of excited $B_s$ mesons |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T19%3A38%3A23IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-hal&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=First%20observation%20of%20the%20decay%20$B_%7Bs2%7D%5E(5840)%5E0%20%5Cto%20B%5E%7B+%7D%20K%5E-$%20and%20studies%20of%20excited%20$B_s$%20mesons&rft.jtitle=Physical%20review%20letters&rft.au=Aaij,%20R.&rft.date=2013&rft.volume=110&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/PhysRevLett.110.151803&rft_dat=%3Chal%3Eoai_HAL_in2p3_00757461v1%3C/hal%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |