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Observation of the Bc meson in the exclusive decay Bc-->J/psipi
Authors:Abazov V M  Abbott B  Abolins M  Acharya B S  Adams M  Adams T  Aguilo E  Ahn S H  Ahsan M  Alexeev G D  Alkhazov G  Alton A  Alverson G  Alves G A  Anastasoaie M  Ancu L S  Andeen T  Anderson S  Andrieu B  Anzelc M S  Aoki M  Arnoud Y  Arov M  Arthaud M  Askew A  Asman B  Assis Jesus A C S  Atramentov O  Avila C  Ay C  Badaud F  Baden A  Bagby L  Baldin B  Bandurin D V  Banerjee P  Banerjee S  Barberis E  Barfuss A-F  Bargassa P  Baringer P  Barreto J  Bartlett J F  Bassler U  Bauer D  Beale S  Bean A  Begalli M  Begel M  Belanger-Champagne C  Bellantoni L  Bellavance A  Benitez J A  Beri S B  Bernardi G  Bernhard R  Bertram I  Besançon M
Institution:Joint Institute for Nuclear Research, Dubna, Russia.
Abstract:A fully reconstructed Bc-->J/psipi signal is observed with the D0 detector at the Fermilab Tevatron ppover] collider using 1.3 fb(-1) of integrated luminosity. The signal consists of 54+/-12 candidates with a significance that exceeds 5 standard deviations, and confirms earlier observations of this decay. The measured mass of the Bc meson is 6300+/-14(stat)+/-5(syst) MeV/c2.
Keywords:
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