About: Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state

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About: Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1093/ptep/ptu043
Description	We report an observation of the B-+/- -> J/psi eta K-+/- and B-0 -> J/psi eta K-S(0) decays using 772 x 10(6)B (B) over bar pairs collected at the gamma (4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the branching fractions B(B-+/- -> J/psi eta K-+/-) = (1.27 +/- 0.11 (stat.) +/- 0.11 ( syst.)) x 10(- 4) and B(B-0 -> J/psi eta K-S(0)) = ( 5.22 +/- 0.78 (stat.) +/- 0.49 (syst.)) x 10(-5). We search for a new narrow charmonium(- like) state X in the J/psi eta mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B-+/- -> XK +/-) B(X -> J/psi eta), at 3872 MeV c(-2) where a C-odd partner of X(3872) may exist, psi(4040) and psi(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c(-2). The obtained upper limits at 90% confidence level for XC-odd(3872), psi(4040), and psi(4160) are 3.8 x 10(-6), 15.5 x 10(-6), and 7.4 x 10(-6), respectively. We report an observation of the B-+/- -> J/psi eta K-+/- and B-0 -> J/psi eta K-S(0) decays using 772 x 10(6)B (B) over bar pairs collected at the gamma (4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the branching fractions B(B-+/- -> J/psi eta K-+/-) = (1.27 +/- 0.11 (stat.) +/- 0.11 ( syst.)) x 10(- 4) and B(B-0 -> J/psi eta K-S(0)) = ( 5.22 +/- 0.78 (stat.) +/- 0.49 (syst.)) x 10(-5). We search for a new narrow charmonium(- like) state X in the J/psi eta mass spectrum and find no significant excess. We set upper limits on the product of branching fractions, B(B-+/- -> XK +/-) B(X -> J/psi eta), at 3872 MeV c(-2) where a C-odd partner of X(3872) may exist, psi(4040) and psi(4160) assuming their known mass and width, and over a range from 3.8 to 4.8 GeV c(-2). The obtained upper limits at 90% confidence level for XC-odd(3872), psi(4040), and psi(4160) are 3.8 x 10(-6), 15.5 x 10(-6), and 7.4 x 10(-6), respectively. (en)
Title	Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state (en)
skos:prefLabel	Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state Measurement of branching fractions for B -> J/psi eta K decays and search for a narrow resonance in the J/psi eta final state (en)
skos:notation	RIV/00216208:11320/14:10287598!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(LG14034)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Doležal, Zdeněk Kodyš, Peter Drásal, Zbyněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	27770
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10287598
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	kekb; mesons; detector; mechanism; charmonium; x(3872) (en)
http://linked.open.../riv/klicoveSlovo	charmonium mesons x(3872) kekb detector mechanism
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[0819C3F247D2]
http://linked.open...i/riv/nazevZdroje	Progress of Theoretical and Experimental Physics [online]
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	180 (xsd:int)
http://linked.open...vavai/riv/projekt	Studium fyziky za standardním modelem v rozpadech mezonů B v mezinárodním experimentu Belle II
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	neuveden
http://linked.open...iv/tvurceVysledku	Cho, K. Drásal, Zbyněk Doležal, Zdeněk Kodyš, Peter Adachi, I. Aihara, H. Bhardwaj, V. Aushev, T. Eidelman, S. Asner, D. M. Bakich, A. M. Bhuyan, B. Bonvicini, G. Boček, A. Bracko, M. Browder, T. E. Chang, M. -C. Chen, A. Cheon, B. G. Chilikin, K. Chistov, R. Choi, S. -K. Choi, Y. Danilov, M. Dalseno, J. Bala, A. Chobanova, V. Cinabro, D. Dutta, D. Miyabayashi, K. Iwashita, T.
http://linked.open...ain/vavai/riv/wos	000336146500014
issn	2050-3911
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1093/ptep/ptu043
http://localhost/t...ganizacniJednotka	11320

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