Search for CP violation in $${{{\varXi }} ^+_{c}} \rightarrow {p} {{K} ^-} {{\pi } ^+} $$ Ξ c + → p K - π + decays using model-independent techniques

Abstract

Abstract A first search for

$$CP$$

CP

violation in the Cabibbo-suppressed

$${{{\varXi }} ^+_{c}} \rightarrow {p} {{K} ^-} {{\pi } ^+} $$

Ξ

c +

→ p

K

-

π

+

decay is performed using both a binned and an unbinned model-independent technique in the Dalitz plot. The studies are based on a sample of proton-proton collision data, corresponding to an integrated luminosity of

$$3.0\,\text {fb} ^{-1} $$

3.0

fb

- 1

, and collected by the LHCb experiment at centre-of-mass energies of 7 and

$$8\,\text {TeV} $$

8

TeV

. The data are consistent with the hypothesis of no

$$CP$$

CP

violation.