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arXiv · 1212.1856

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

BaBar Collaboration·J. P. Lees·V. Poireau·V. Tisserand·J. Garra Tico·E. Grauges·A. Palano·G. Eigen·B. Stugu·D. N. Brown·L. T. Kerth·Yu. G. Kolomensky·G. Lynch·H. Koch·T. Schroeder·D. J. Asgeirsson·C. Hearty·T. S. Mattison·J. A. McKenna·R. Y. So·A. Khan·V. E. Blinov·A. R. Buzykaev·V. P. Druzhinin·V. B. Golubev·E. A. Kravchenko·A. P. Onuchin·S. I. Serednyakov·Yu. I. Skovpen·E. P. Solodov·K. Yu. Todyshev·A. N. Yushkov·M. Bondioli·D. Kirkby·A. J. Lankford·M. Mandelkern·H. Atmacan·J. W. Gary·F. Liu·O. Long·G. M. Vitug·C. Campagnari·T. M. Hong·D. Kovalskyi·J. D. Richman·C. A. West·A. M. Eisner·J. Kroseberg·W. S. Lockman·A. J. Martinez·B. A. Schumm·A. Seiden·D. S. Chao·C. H. Cheng·B. Echenard·K. T. Flood·D. G. Hitlin·P. Ongmongkolkul·F. C. Porter·A. Y. Rakitin·R. Andreassen·Z. Huard·B. T. Meadows·M. D. Sokoloff·L. Sun·P. C. Bloom·W. T. Ford·A. Gaz·U. Nauenberg·J. G. Smith·S. R. Wagner·R. Ayad·W. H. Toki·B. Spaan·K. R. Schubert·R. Schwierz·D. Bernard·M. Verderi·P. J. Clark·S. Playfer·D. Bettoni·C. Bozzi·R. Calabrese·G. Cibinetto·E. Fioravanti·I. Garzia·E. Luppi·L. Piemontese·V. Santoro·R. Baldini-Ferroli·A. Calcaterra·R. de Sangro·G. Finocchiaro·P. Patteri·M. Piccolo·M. Rama·A. Zallo·R. Contri·E. Guido·M. Lo Vetere
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Abstract

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running at and just below the Y(4S) resonance. The CP-violating decay rate asymmetry A_CP is determined to be (0.35 +- 0.30 +- 0.15)%. Model-dependent and model-independent Dalitz plot analysis techniques are used to search for CP-violating asymmetries in the various intermediate states.

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BaBar Collaboration, J. P. Lees, V. Poireau, V. Tisserand, J. Garra Tico, E. Grauges, A. Palano, G. Eigen, B. Stugu, D. N. Brown, L. T. Kerth, Yu. G. Kolomensky, G. Lynch, H. Koch, T. Schroeder, D. J. Asgeirsson, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, A. Khan, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K. Yu. Todyshev, A. N. Yushkov, M. Bondioli, D. Kirkby, A. J. Lankford, M. Mandelkern, H. Atmacan, J. W. Gary, F. Liu, O. Long, G. M. Vitug, C. Campagnari, T. M. Hong, D. Kovalskyi, J. D. Richman, C. A. West, A. M. Eisner, J. Kroseberg, W. S. Lockman, A. J. Martinez, B. A. Schumm, A. Seiden, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, P. Ongmongkolkul, F. C. Porter, A. Y. Rakitin, R. Andreassen, Z. Huard, B. T. Meadows, M. D. Sokoloff, L. Sun, P. C. Bloom, W. T. Ford, A. Gaz, U. Nauenberg, J. G. Smith, S. R. Wagner, R. Ayad, W. H. Toki, B. Spaan, K. R. Schubert, R. Schwierz, D. Bernard, M. Verderi, P. J. Clark, S. Playfer, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, L. Piemontese, V. Santoro, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, P. Patteri, M. Piccolo, M. Rama, A. Zallo, R. Contri, E. Guido, M. Lo Vetere. 2013-02-21. Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays. https://doi.org/10.1103/physrevd.87.052010

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