Search for CP violation in the decay D+ → π- π+π+

Title:	Search for CP violation in the decay D+ → π- π+π+
Authors:	Adrover, C. Archilli, Flavio Artuso, Marina Amato, S. F. ...
Issue Date:	2014
Publisher:	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Citation:	Scopus

URI:	http://www.sciencedirect.com/science/article/pii/S0370269313010101 http://repository.vnu.edu.vn/handle/VNU_123/34213

A search for CP violation in the phase space of the decay D+ → π- π+π+ is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment at a centre-of-mass energy of 7 TeV. The Dalitz plot distributions for 3.1 × 106 D+ and D- candidates are compared with binned and unbinned model-independent techniques. No evidence for CP violation is found