Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+

0440232 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 364 autorů
Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 90, č. 11 (2014), "111102-1"-"111102-11". ISSN 1550-7998
Grant CEP: GA MŠMT(CZ) LG12006
Institucionální podpora: RVO:68378271
Klíčová slova: Monte Carlo * Batavia TEVATRON Coll * mass spectrum * anti-p p * scattering * hadronic decay * data analysis method * DZERO * experimental results
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.643, rok: 2014

We measure the direct CP-violating parameter ACP for the decay of the charged charm meson, D+→K-π+π+ (and charge conjugate), using the full 10.4  fb-1 sample of pp¯ collisions at s=1.96  TeV collected by the D0 detector at the Fermilab Tevatron collider. We extract the raw reconstructed charge asymmetry by fitting the invariant mass distributions for the sum and difference of charge-specific samples. This quantity is then corrected for detector-related asymmetries using data-driven methods and for possible physics asymmetries (from B→D processes) using input from Monte Carlo simulation.
Trvalý link: http://hdl.handle.net/11104/0243344