We present new measurements of photon energies and branching fractions for the radiative transitions Y(2S)→γχ (1P). The masses of the χ states are determined from the measured radiative photon energies. The ratio of mass splittings between the χ substates, r≡(M -M )/(M -M ), with M the χ 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
The existence of P-wave bb̄ bound states χb′ is demonstrated by observation of photons from the tran...
We have measured the branching fraction and photon energy spectrum for the radiative penguin process...
We use (121\ub11) million \u3a5(3S) and (98\ub11) million \u3a5(2S) mesons recorded by the BABAR det...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
Using 88.9 million BB̄ events collected by the BABAR detector at the Υ(4S), we measure the branching...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
New results on the rare, doubly radiative decay η→π0γγ have been obtained from a revised analysis of...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
We perform a measurement of the \u3c4\u2192l\u3b3\u3bd\u3bd\uaf (l=e,\u3bc) branching fractions for ...
Using 88.9 million BB\u305 events collected by the BABAR detector at the \u3a5(4S), we measure the b...
Invoked by the recent CMS observation regarding candidates of the χb(3P) multiplet, we analyze the h...
The existence of P-wave bb̄ bound states χb′ is demonstrated by observation of photons from the tran...
We have measured the branching fraction and photon energy spectrum for the radiative penguin process...
We use (121\ub11) million \u3a5(3S) and (98\ub11) million \u3a5(2S) mesons recorded by the BABAR det...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We present new measurements of photon energies and branching fractions for the radiative transitions...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
Using 88.9 million BB̄ events collected by the BABAR detector at the Υ(4S), we measure the branching...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
New results on the rare, doubly radiative decay η→π0γγ have been obtained from a revised analysis of...
We perform a measurement of the τ→lγνν¯ (l=e,μ) branching fractions for a minimum photon energy of 1...
We perform a measurement of the \u3c4\u2192l\u3b3\u3bd\u3bd\uaf (l=e,\u3bc) branching fractions for ...
Using 88.9 million BB\u305 events collected by the BABAR detector at the \u3a5(4S), we measure the b...
Invoked by the recent CMS observation regarding candidates of the χb(3P) multiplet, we analyze the h...
The existence of P-wave bb̄ bound states χb′ is demonstrated by observation of photons from the tran...
We have measured the branching fraction and photon energy spectrum for the radiative penguin process...
We use (121\ub11) million \u3a5(3S) and (98\ub11) million \u3a5(2S) mesons recorded by the BABAR det...