Properties of L=1 B(1) and B(2)* mesons.
نویسندگان
- V M Abazov
- B Abbott
- M Abolins
- B S Acharya
- M Adams
- T Adams
- E Aguilo
- S H Ahn
- M Ahsan
- G D Alexeev
- G Alkhazov
- A Alton
- G Alverson
- G A Alves
- M Anastasoaie
- L S Ancu
- T Andeen
- S Anderson
- B Andrieu
- M S Anzelc
- Y Arnoud
- M Arov
- M Arthaud
- A Askew
- B Asman
- A C S Assis Jesus
- O Atramentov
- C Autermann
- C Avila
- C Ay
- F Badaud
- A Baden
- L Bagby
- B Baldin
- D V Bandurin
- S Banerjee
- P Banerjee
- E Barberis
- A-F Barfuss
- P Bargassa
- P Baringer
- J Barreto
- J F Bartlett
- U Bassler
- D Bauer
- S Beale
- A Bean
- M Begalli
- M Begel
- C Belanger-Champagne
- L Bellantoni
- A Bellavance
- J A Benitez
- S B Beri
- G Bernardi
- R Bernhard
- L Berntzon
- I Bertram
- M Besançon
- R Beuselinck
- V A Bezzubov
- P C Bhat
- V Bhatnagar
- C Biscarat
- G Blazey
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- S Blessing
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- W Carvalho
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- D Chakraborty
- K M Chan
- K Chan
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- D Cutts
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- H da Motta
- A Das
- G Davies
- K De
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- P de Jong
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چکیده
This Letter presents the first strong evidence for the resolution of the excited B mesons B(1) and B(2)* as two separate states in fully reconstructed decays to B(+)(*)pi(-). The mass of B(1) is measured to be 5720.6+/-2.4+/-1.4 MeV/c(2) and the mass difference DeltaM between B(2)* and B(1) is 26.2+/-3.1+/-0.9 MeV/c;{2}, giving the mass of the B(2)* as 5746.8+/-2.4+/-1.7 MeV/c(2). The production rate for B(1) and B(2)* mesons is determined to be a fraction (13.9+/-1.9+/-3.2)% of the production rate of the B+ meson.
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ورودعنوان ژورنال:
- Physical review letters
دوره 99 17 شماره
صفحات -
تاریخ انتشار 2007