LHCb at Moriond. Cтандартная Модель Bsµµ = (3.23 +/- 0.27) 10 -9 LHCb Bsµµ = (3.2 +1.5/-1.2) 10 -9 В эксперименте LHCb обнаружен редкий распад Bs на два.

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LHCb at Moriond

Cтандартная Модель Bsµµ = (3.23 +/- 0.27) LHCb Bsµµ = ( /-1.2) В эксперименте LHCb обнаружен редкий распад Bs на два мюона Bs Полученное согласие со Стандартной Моделью является одним из самых серьезных ограничений на возможный вкладновой физики, в частности на вклад различных вариантов суперсимметрии. Phys.Rev.Letters 110 ( 2013) LHCb Bdµµ < 9.4 · Cтандартная Модель Bdµµ = (1.07 +/- 0.10) Bd 1.1 fb -1 ( 8 TeV) fb -1 ( 7TeV )

Осцилляции B -мезонов B 0 s anti B 0 s B 0 d anti B 0 d D 0 anti D 0

Метод измерения

Δm d = ± ± ps-1 ] Осцилляции Bd -мезонов

Осцилляции Bs -мезонов

. The LHCb results exclude the no-mixing hypothesis by more than 5 σ for the first time and therefore can be classified as the first observation of this effect. D* + D 0 π+ (D 0 tagging) R= N(antiD 0 K+π-) / N(D 0 K-π+) Осцилляции D 0 мезонов

СP – нарушение в распадах D0 мезонов A CP = {N ( D 0 f ) - N ( anti D 0 f )} / {N ( D 0 f ) + N ( anti D 0 f )} Π+Π+ Π-Π- A CP = A CP ( K + K - ) - A CP (π + π - )

LHCb A CP = ( ± 0.21 ±0.11)% PRL 108 (2012)111602, arXiv: CDF A CP = ( ± 0.21 ±0.10)% PRL 109 (2012) arXiv: Belle A CP = ( ± 0.41 ±0.06)% arXiv: World average A CP = ( ± 0.15)% СP – нарушение в распадах D0 мезонов

A CP = ( ± 0.30 ±0.14)%

СP – нарушение в распадах D0 мезонов

Quantum numbers of X(3872) B+ X(3872)K+ X(3782) π+π- J/ψ J/ψ µ+µ- J PC C = + from X(3782) γ J/ψ CDF and Belle 1 ++ or 2 -+ BaBar 2 -+ LHCb исключен на уровне 8σ