Time-dependent analysis of B[superscript 0] → K[0 over S]π[superscript −]π[superscript +]γ decays and studies of the K[superscript +]π[superscript −]π[superscript +] system in B[superscript +] → K[superscript +]π[superscript −]π[superscript +]γ decays
We measure the time-dependent CP asymmetry in the radiative-penguin decay B[superscript 0] → K[0 over S]π[superscript -]π[superscript +]γ, using a sample of 471 × 10[superscript 6] ϒ(4S) → B[bar over B] events recorded with the BABAR detector at the PEP-II e[superscript +]e[superscript -] storage ri...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
American Physical Society,
2016-03-30T17:57:38Z.
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Online Access: | Get fulltext |
LEADER | 13367 am a22036613u 4500 | ||
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100 | 1 | 0 | |a del Amo Sanchez, P. |e author |
100 | 1 | 0 | |a Massachusetts Institute of Technology. Laboratory for Nuclear Science |e contributor |
100 | 1 | 0 | |a Cowan, Ray Franklin |e contributor |
700 | 1 | 0 | |a Lees, J. P. |e author |
700 | 1 | 0 | |a Poireau, V. |e author |
700 | 1 | 0 | |a Tisserand, V. |e author |
700 | 1 | 0 | |a Grauges, E. |e author |
700 | 1 | 0 | |a Palano, A. |e author |
700 | 1 | 0 | |a Eigen, G. |e author |
700 | 1 | 0 | |a Stugu, B. |e author |
700 | 1 | 0 | |a Brown, D. N. |e author |
700 | 1 | 0 | |a Kerth, L. T. |e author |
700 | 1 | 0 | |a Kolomensky, Yu. G. |e author |
700 | 1 | 0 | |a Lee, M. J. |e author |
700 | 1 | 0 | |a Lynch, G. |e author |
700 | 1 | 0 | |a Koch, H. |e author |
700 | 1 | 0 | |a Schroeder, T. |e author |
700 | 1 | 0 | |a Hearty, C. |e author |
700 | 1 | 0 | |a Mattison, T. S. |e author |
700 | 1 | 0 | |a McKenna, J. A. |e author |
700 | 1 | 0 | |a So, R. Y. |e author |
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700 | 1 | 0 | |a Cowan, Ray Franklin |e author |
245 | 0 | 0 | |a Time-dependent analysis of B[superscript 0] → K[0 over S]π[superscript −]π[superscript +]γ decays and studies of the K[superscript +]π[superscript −]π[superscript +] system in B[superscript +] → K[superscript +]π[superscript −]π[superscript +]γ decays |
260 | |b American Physical Society, |c 2016-03-30T17:57:38Z. | ||
856 | |z Get fulltext |u http://hdl.handle.net/1721.1/101940 | ||
520 | |a We measure the time-dependent CP asymmetry in the radiative-penguin decay B[superscript 0] → K[0 over S]π[superscript -]π[superscript +]γ, using a sample of 471 × 10[superscript 6] ϒ(4S) → B[bar over B] events recorded with the BABAR detector at the PEP-II e[superscript +]e[superscript -] storage ring at SLAC. Using events with m[subscript Kππ] < 1.8 GeV/c[superscript 2], we measure the branching fractions of B[superscript +] → K[superscript +]π[superscript -]π[superscript +]γ and B[superscript 0] → K[superscript 0]π[superscript -]π[superscript +]γ, the branching fractions of the kaonic resonances decaying to K[superscript +]π[superscript -]π[superscript +], as well as the overall branching fractions of the B[superscript +] → ρ[superscript 0]K[superscript +]γ, B[superscript +] → K[superscript *0]π[superscript +]γ and S-wave B[superscript +] → (Kπ)[*0 over 0]π[superscript +]γ components. For events from the ρ mass band, we measure the CP-violating parameters S[subscript K[0 over S]π[superscript +]π[superscript -]γ] = 0.14 ± 0.25 ± 0.03 and C[subscript K[0 over S]π[superscript +]π[superscript -]γ] = -0.39 ± 0.20[+0.03 over -0.02], where the first uncertainties are statistical and the second are systematic. We extract from this measurement the time-dependent CP asymmetry related to the CP eigenstate ρ[superscript 0]K[0 over S] and obtain S[subscript K[0 over S]ργ] = -0.18 ± 0.32[+0.06 over -0.05], which provides information on the photon polarization in the underlying b → sγ transition. | ||
520 | |a United States. Dept. of Energy | ||
520 | |a National Science Foundation (U.S.) | ||
520 | |a Alfred P. Sloan Foundation | ||
520 | |a United States-Israel Binational Science Foundation | ||
546 | |a en | ||
655 | 7 | |a Article | |
773 | |t Physical Review D |