paper

Search for CP violation using triple product asymmetries in $I^_{b}^{0} \to p K^{-} I ¨ ^{+} I ¨ ^{-}$ , $I^_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $I^_{b}^{0} \to p K^{-} K^{-} I ¨ ^{+}$ decays

arXiv:1805.03941 · doi:10.1007/JHEP08(2018)039

Abstract

A search for $C$ P and $P$ violation using triple-product asymmetries is performed with $I^_{b}^{0} \to p K^{-} I ¨ ^{+} I ¨ ^{-}$ , $I^_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $I^_{b}^{0} \to p K^{-} K^{-} I ¨ ^{+}$ decays. The data sample corresponds to integrated luminosities of 1.0fb $^{- 1}$ and 2.0fb $^{- 1}$ , recorded with the LHCb detector at centre-of-mass energies of 7TeV and 8TeV, respectively. The $C P$ - and $P$ -violating asymmetries are measured both integrating over all phase space and in specific phase-space regions. No significant deviation from $C P$ or $P$ symmetry is found. The first observation of $I^_{b}^{0} \to p K^{-} I ¨ _{c 0} (1 P) (\to I ¨ ^{+} I ¨ ^{-}, K^{+} K^{-})$ decay is also reported.

26 pages including author list, 10 figures

Search for CP violation using triple product asymmetries in I^b0​→pK−I¨+I¨−, I^b0​→pK−K+K− and I^b0​→pK−K−I¨+ decays

Abstract

Search for CP violation using triple product asymmetries in $I^_{b}^{0} \to p K^{-} I ¨ ^{+} I ¨ ^{-}$ , $I^_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $I^_{b}^{0} \to p K^{-} K^{-} I ¨ ^{+}$ decays