RT Journal Article
T1 Measurement of the CKM angle γ using B ± → DK ± with D → K0S π + π −, K0S K + K − decays
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Álvarez Cartelle, Paula
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 García Pardiñas, Julián
A1 Hernando Morata, José Ángel
A1 Pazos Álvarez, Antonio
A1 Pérez Trigo, Eliseo
A1 Plo Casasus, Máximo
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Seco Miguélez, Marcos Antonio
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
A1 Vieites Díaz, María
K1 CP violation
K1 CKM angle gamma
K1 Hadron-Hadron Scattering
K1 B physics
K1 Flavor physics
AB A binned Dalitz plot analysis of B± → DK± decays, with D → K0S + −and D → K0SK+K−, is performed to measure the CP-violating observables x± and y±,which are sensitive to the Cabibbo-Kobayashi-Maskawa angle . The analysis exploits asample of proton-proton collision data corresponding to 3.0 fb−1 collected by the LHCbexperiment. Measurements from CLEO-c of the variation of the strong-interaction phaseof the D decay over the Dalitz plot are used as inputs. The values of the parameters arefound to be x+ = (−7.7 ± 2.4 ± 1.0 ± 0.4) × 10−2, x− = (2.5 ± 2.5 ± 1.0 ± 0.5) × 10−2,y+ = (−2.2 ± 2.5 ± 0.4 ± 1.0) × 10−2, and y− = (7.5 ± 2.9 ± 0.5 ± 1.4) × 10−2. The first,second, and third uncertainties are the statistical, the experimental systematic, and thatassociated with the precision of the strong-phase parameters. These are the most precisemeasurements of these observables and correspond to  = (62 +15−14) , with a second solutionat γ → γ  + 180 , and rB = 0.080+0.019−0.021, where rB is the ratio between the suppressed andfavoured B decay amplitudes
PB Springer
SN 1029-8479
YR 2014
FD 2014
LK http://hdl.handle.net/10347/22070
UL http://hdl.handle.net/10347/22070
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the CKM angle γ using B ± → DK ± with D → K0S π + π −, K0S K + K − decays. J. High Energ. Phys. 2014, 97 (2014). https://doi.org/10.1007/JHEP10(2014)097
DS Minerva
RD 24 abr 2026