RT Journal Article
T1 Measurement of CP violation and constraints on the CKM angle γ in B±→DK± with D→K0Sπ+π−decays
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Álvarez Cartelle, Paula
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
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 Vieites Díaz, María
A1 Vázquez Sierra, Carlos
AB A model-dependent amplitude analysis of B±→DK±with D→K0Sπ+π−decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1fb−1, recorded by LHCb at a centre-of-mass energy of 7TeV in 2011. Values of the CPviolation observables x±and y±, which are sensitive to the CKM angle γ, are measured to bex− =+0.027±0.044+0.010−0.008± 0.001,y− =+0.013±0.048+0.009−0.007± 0.003,x+ =−0.084±0.045 ±0.009±0.005,y+ =−0.032±0.048+0.010−0.009± 0.008,where the first uncertainty is statistical, the second systematic and the third arises from the uncertainty of the D→K0Sπ+π−amplitude model. The value of γis determined to be (84+49−42)◦, including all sources of uncertainty. Neutral Dmeson mixing is found to have negligible effect.
PB Elsevier
SN 0550-3213
YR 2014
FD 2014
LK http://hdl.handle.net/10347/22058
UL http://hdl.handle.net/10347/22058
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., ... & Cartelle, P. A. (2014). Measurement of CP violation and constraints on the CKM angle γ in B±→ DK±with D→ KS0π+ π− decays. Nuclear Physics B, 888, 169-193
DS Minerva
RD 22 abr 2026