ar X iv : 1 31 0 . 55 13 v 1 [ he p - la t ] 2 1 O ct 2 01 3 Twisted mass lattice computation of charmed mesons with focus on D ∗ ∗

نویسندگان

  • Martin Kalinowski
  • Marc Wagner
چکیده

We present results of a 2+1+1 flavor twisted mass lattice QCD computation of the spectrum of D mesons and Ds mesons and of charmonium. Particular focus is put on the positive parity D states (so-called D∗∗ mesons) with quantum numbers JP = 0+, 1+ and 2+. Besides computing their masses we are also separating and classifying the two JP = 1 states according to the angular momentum/spin of their light degrees of freedom (light quarks and gluons) j = 1/2,3/2.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : 0 71 0 . 24 70 v 1 [ he p - la t ] 1 2 O ct 2 00 7 Lattice Approach to Light Scalars

I report on lattice QCD calculations that study the properties of the a0 and f0 mesons.

متن کامل

ar X iv : 0 71 0 . 09 85 v 1 [ he p - la t ] 4 O ct 2 00 7 Hard Hadron spectroscopy

I review lattice QCD calculations that compute the masses of the flavour singlet pseudoscalar mesons. I describe the progress in computing the mass spectrum of light 0 ++ mesons using lattice QCD. I also compare the results for basic quantities such as f π and m ρ , from various different formalisms of lattice QCD. I discuss the physical value of r 0 .

متن کامل

ar X iv : 0 81 0 . 01 36 v 1 [ he p - la t ] 1 O ct 2 00 8 A High Statistics Study of Flavour - Singlet Mesons with Staggered Fermions

We present some early results from a high statistics study of the scalar and pseudoscalar singlet sectors of lattice QCD using 2 + 1 flavours of Asqtad improved staggered fermions. The use of the Asqtad action has allowed us to generate an unprecedented number of configurations at 2 lattice spacings which on completion we hope will give us a significantly improved view of both the scalar and ps...

متن کامل

ar X iv : 1 21 1 . 50 02 v 1 [ he p - la t ] 2 1 N ov 2 01 2 Lattice investigation of the tetraquark candidates a 0 ( 980 ) and κ

It is a long discussed issue whether light scalar mesons have sizeable four-quark components. We present an exploratory study of this question using N f = 2+ 1+ 1 twisted mass lattice QCD. A mixed action approach ignoring disconnected contributions is used to calculate correlator matrices consisting of mesonic molecule, diquark-antidiquark and two-meson interpolating operators with quantum numb...

متن کامل

ar X iv : 0 71 0 . 17 25 v 1 [ he p - la t ] 9 O ct 2 00 7 Pseudoscalar Flavor - Singlet Physics with Staggered

Accurately calculating the mass of flavor-singlet meson states from numerical lattice simulations is an important milestone for lattice QCD. Careful measurement of the full pseudoscalar flavorsinglet propagator is also a crucial step in understanding the dynamics of the fermion sea on the lattice, in particular for potentially non-trivial formulations such as with 2+1-flavor staggered fermions....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013