Precision measurement of D meson mass differences

Authors: Aaij, R.
Beteta, C. Abellan
Adeva, B.

Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass di erences are made together with a measurement of the D 0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1:0 fb 1 collected in pp collisions at 7 TeV. Using the decay D 0 ! K + K K + , the D 0 mass is measured to be M (D 0 ) = 1864:75 0:15 (stat) 0:11 (syst) MeV =c 2 : The mass di erences M (D + ) M (D 0 ) = 4:76 0:12 (stat) 0:07 (syst) MeV =c 2 ; M (D + s ) M (D + ) = 98:68 0:03 (stat) 0:04 (syst) MeV =c 2 are measured using the D 0 ! K + K + and D + (s) ! K + K + modes...

Title:	Precision measurement of D meson mass differences
Authors:	Aaij, R. Beteta, C. Abellan Adeva, B.
Keywords:	Hadron-Hadron Scattering
Issue Date:	2013
Publisher:	SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Citation:	ISIKNOWLEDGE

Description:	JOURNAL OF HIGH ENERGY PHYSICS Issue: 6 Article Number: UNSP 065 Published: JUN 2013 ; TNS07250
URI:	http://repository.vnu.edu.vn/handle/VNU_123/32553
ISSN:	1029-8479
Appears in Collections:	Bài báo của ĐHQGHN trong Web of Science