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Электронный каталог: Aaij, R. - Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays
Aaij, R. - Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays
Статья
Автор: Aaij, R.
Physical Review D: Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays
б.г.
ISBN отсутствует
Автор: Aaij, R.
Physical Review D: Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays
б.г.
ISBN отсутствует
На полку
Статья
Aaij, R.
Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays / R.Aaij, K.Ivshin, A.Solovev, [LHCb Collab.]. – Text : electronic // Physical Review D. – 2025. – Vol. 111, No. 1. – P. 012001. – URL: https://doi.org/10.1103/PhysRevD.111.012001. – Bibliogr.: 76.
A measurement of the time-dependent ratio of the D*0*>K*+*p*- to D^-*0*>K*+*p*- decay rates is reported. The analysis uses a sample of proton-proton collisions corresponding to an integrated luminosity of 6 fb*-*1 recorded by the LHCb experiment from 2015 through 2018 at a center-of-mass energy of 13 TeV. The D*0 meson is required to originate from a D* (2010)*+*>D*0*p*+ decay, such that its flavor at production is inferred from the charge of the accompanying pion. The measurement is performed simultaneously for the K*+*p*- and K*-*p*+ final states, allowing both mixing and -violation parameters to be determined. The value of the ratio of the decay rates at production is determined to be R&sub(K*p)=(343.1*(2.0)x10*-*5. The mixing parameters are measured to be 𝑐&sub(𝐾𝜋) =(51.4 ±3.5) ×10*−*4 and 𝑐′&sub(𝐾𝜋)=(13±4)×10*−*6, where √𝑅&sub(𝐾𝜋)𝑐&sub(𝐾)𝜋 is the linear coefficient of the expansion of the ratio as a function of decay time in units of the 𝐷*0 lifetime, and 𝑐′&sub(𝐾𝜋) is the quadratic coefficient, both averaged between the 𝐾*+𝜋*− and 𝐾*−𝜋*+ final states. The precision is improved relative to the previous best measurement by approximately 60%. No evidence for 𝐶𝑃 violation is found.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6б - Резонансы с участием К-мезонов
Aaij, R.
Measurement of D*0-D^-*0 Mixing and Search for CP Violation with D*0 *> K*+*p*- Decays / R.Aaij, K.Ivshin, A.Solovev, [LHCb Collab.]. – Text : electronic // Physical Review D. – 2025. – Vol. 111, No. 1. – P. 012001. – URL: https://doi.org/10.1103/PhysRevD.111.012001. – Bibliogr.: 76.
A measurement of the time-dependent ratio of the D*0*>K*+*p*- to D^-*0*>K*+*p*- decay rates is reported. The analysis uses a sample of proton-proton collisions corresponding to an integrated luminosity of 6 fb*-*1 recorded by the LHCb experiment from 2015 through 2018 at a center-of-mass energy of 13 TeV. The D*0 meson is required to originate from a D* (2010)*+*>D*0*p*+ decay, such that its flavor at production is inferred from the charge of the accompanying pion. The measurement is performed simultaneously for the K*+*p*- and K*-*p*+ final states, allowing both mixing and -violation parameters to be determined. The value of the ratio of the decay rates at production is determined to be R&sub(K*p)=(343.1*(2.0)x10*-*5. The mixing parameters are measured to be 𝑐&sub(𝐾𝜋) =(51.4 ±3.5) ×10*−*4 and 𝑐′&sub(𝐾𝜋)=(13±4)×10*−*6, where √𝑅&sub(𝐾𝜋)𝑐&sub(𝐾)𝜋 is the linear coefficient of the expansion of the ratio as a function of decay time in units of the 𝐷*0 lifetime, and 𝑐′&sub(𝐾𝜋) is the quadratic coefficient, both averaged between the 𝐾*+𝜋*− and 𝐾*−𝜋*+ final states. The precision is improved relative to the previous best measurement by approximately 60%. No evidence for 𝐶𝑃 violation is found.
ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 346.6б - Резонансы с участием К-мезонов
