We report a study of the process \u3b3\u3b3\u2192X\u2192\u3b7c\u3c0+\u3c0-, where X stands for one of the resonances \u3c7c2(1P), \u3b7c(2S), X(3872), X(3915), or \u3c7c2(2P). The analysis is performed with a data sample of 473.9\u2009\u2009fb-1 collected with the BABAR detector at the PEP-II asymmetric-energy electron-positron collider. We do not observe a significant signal for any channel, and calculate 90% confidence-level upper limits on the products of branching fractions and two-photon widths \u393X\u2192\u3b3\u3b3B(X\u2192\u3b7c\u3c0+\u3c0-): 15.7 eV for \u3c7c2(1P), 133 eV for \u3b7c(2S), 11.1 eV for X(3872) (assuming it to be a spin-2 state), 16 eV for X(3915) (assuming it to be a spin-2 state), and 18 eV for \u3c7c2(2P). We also ...
We study the processes γ γ → K 0 S K ± π ∓ and γ γ → K + K − π + π − π 0 using a data sample of 519....
We study the process \u3b3\u3b3\u2192J/\u3c8\u3c9 using a data sample of 519.2\u2009\u2009fb-1 recor...
We study the processes \u3b3\u3b3\u2192KS0K\ub1\u3c0 13 and \u3b3\u3b3\u2192K+K-\u3c0+\u3c0-\u3c00 u...
We report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ ...
We report a study of the process γγ→X→η cπ +π -, where X stands for one of the resonances χ c2(1P), ...
We report a study of the process \u3b3\u3b3\u2192X\u2192\u3b7c\u3c0+\u3c0-, where X stands for one o...
We report a study of the process γγ→X→ηcπ+π-, where X stands for one of the resonances χc2(1P), ηc(2...
We study the processes γγ→KS0K±π and γγ→K+K-π+π -π0 using a data sample of 519.2fb-1 recorded by the...
We study the processes γ γ → K 0 S K ± π ∓ and γ γ → K + K − π + π − π 0 using a data sample of 519....
We study the process \u3b3\u3b3\u2192J/\u3c8\u3c9 using a data sample of 519.2\u2009\u2009fb-1 recor...
We study the processes \u3b3\u3b3\u2192KS0K\ub1\u3c0 13 and \u3b3\u3b3\u2192K+K-\u3c0+\u3c0-\u3c00 u...
We report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ ...
We report a study of the process γγ→X→η cπ +π -, where X stands for one of the resonances χ c2(1P), ...
We report a study of the process \u3b3\u3b3\u2192X\u2192\u3b7c\u3c0+\u3c0-, where X stands for one o...
We report a study of the process γγ→X→ηcπ+π-, where X stands for one of the resonances χc2(1P), ηc(2...
We study the processes γγ→KS0K±π and γγ→K+K-π+π -π0 using a data sample of 519.2fb-1 recorded by the...
We study the processes γ γ → K 0 S K ± π ∓ and γ γ → K + K − π + π − π 0 using a data sample of 519....
We study the process \u3b3\u3b3\u2192J/\u3c8\u3c9 using a data sample of 519.2\u2009\u2009fb-1 recor...
We study the processes \u3b3\u3b3\u2192KS0K\ub1\u3c0 13 and \u3b3\u3b3\u2192K+K-\u3c0+\u3c0-\u3c00 u...