TY  - JOUR
AU  - Carrasco, N.
AU  - Ciuchini, M.
AU  - Dimopoulos, P.
AU  - Frezzotti, R.
AU  - Gimenez, V.
AU  - Lubicz, V.
AU  - Rossi, G. C.
AU  - Sanfilippo, F.
AU  - Silvestrini, L.
AU  - Simula, S.
AU  - Tarantino, C.
PY  - 2014
DA  - 2014//
TI  - D-0-(D)over-bar(0) mixing in the standard model and beyond from N-f=2 twisted mass QCD
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 014502
EP  - 9pp
VL  - 90
IS  - 1
PB  - Amer Physical Soc
AB  - We present the first unquenched lattice QCD results for the bag parameters controlling the short distance contribution to D meson oscillations in the standard model and beyond. We have used the gauge configurations produced by the European Twisted Mass collaboration with N-f = 2 dynamical quarks, at four lattice spacings and light meson masses in the range 280-500 MeV. Renormalization is carried out nonperturbatively with the regularization-independent momentum subtraction method. The bag-parameter results have been used to constrain new physics effects in D-0 – (D) over bar (0) mixing, to put a lower bound to the generic new physics scale and to constrain off-diagonal squark mass terms for TeV-scale supersymmetry.
SN  - 1550-7998
UR  - http://arxiv.org/abs/arXiv:1403.7302
UR  - https://doi.org/10.1103/PhysRevD.90.014502
DO  - 10.1103/PhysRevD.90.014502
LA  - English
N1  - WOS:000338499600002
ID  - Carrasco_etal2014
ER  -