Journal article
Measurement of the mass splittings between the b(b)over-bar chi(b,J)(1P) states
- Abstract:
- We present new measurements of photon energies and branching fractions for the radiative transitions Y(2S)→γχb(J=0,1,2)(1P). The masses of the χb states are determined from the measured radiative photon energies. The ratio of mass splittings between the χb substates, r≡(MJ=2-MJ=1)/(MJ=1-MJ=0), with M the χb mass, provides information on the nature of the bb̄ confining potential. We find r(1P)=0.542 ±0.022±0.024. This value is somewhat lower than the previous world average, but more consistent with the theoretical expectation that r(1P)
- Publication status:
- Published
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Bibliographic Details
- Journal:
- Physical Review D
- Volume:
- 59
- Issue:
- 3
- Pages:
- 1-5
- Publication date:
- 1999-02-01
- ISSN:
-
0556-2821
- Source identifiers:
-
11660
Item Description
- Language:
- English
- Pubs id:
-
pubs:11660
- UUID:
-
uuid:7e2a082c-2d5c-4e50-9a0b-79b82650e75e
- Local pid:
- pubs:11660
- Deposit date:
- 2012-12-19
Terms of use
- Copyright date:
- 1999
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