Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Properties of L=1 B1 and B2* Mesons.
AU - Ratoff, Peter N.
AU - Bertram, I.
AU - Borissov, G.
AU - Fox, H.
N1 - Entire analysis and paper produced by PhD student Mark Williams under Ratoff's supervision. The first direct observation of B1 and B2* as independent states, the most precise measurement of their masses and the only measurement of the rate at which they are produced with respect to ground state B mesons. RAE_import_type : Journal article RAE_uoa_type : Physics
PY - 2007/10/26
Y1 - 2007/10/26
N2 - This Letter presents the first strong evidence for the resolution of the excited B mesons B1 and B as two separate states in fully reconstructed decays to B+(*)-. The mass of B1 is measured to be 5720.6±2.4±1.4 MeV/c2 and the mass difference M between B and B1 is 26.2±3.1±0.9 MeV/c2, giving the mass of the B as 5746.8±2.4±1.7 MeV/c2. The production rate for B1 and B mesons is determined to be a fraction (13.9±1.9±3.2)% of the production rate of the B+ meson.
AB - This Letter presents the first strong evidence for the resolution of the excited B mesons B1 and B as two separate states in fully reconstructed decays to B+(*)-. The mass of B1 is measured to be 5720.6±2.4±1.4 MeV/c2 and the mass difference M between B and B1 is 26.2±3.1±0.9 MeV/c2, giving the mass of the B as 5746.8±2.4±1.7 MeV/c2. The production rate for B1 and B mesons is determined to be a fraction (13.9±1.9±3.2)% of the production rate of the B+ meson.
U2 - 10.1103/PhysRevLett.99.172001
DO - 10.1103/PhysRevLett.99.172001
M3 - Journal article
VL - 99
SP - 172001
JO - Physical review letters
JF - Physical review letters
IS - 17
ER -