Journal article icon

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

Actions


Authors


Expand authors...
Journal:
PHYSICAL REVIEW D
Volume:
59
Issue:
3
Pages:
1-5
Publication date:
1999-02-01
ISSN:
0556-2821
URN:
uuid:7e2a082c-2d5c-4e50-9a0b-79b82650e75e
Source identifiers:
11660
Local pid:
pubs:11660
Language:
English

Terms of use


Metrics


Views and Downloads






If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP