Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Masses of doubly heavy-quark baryons in an extended chromomagnetic model   We extend the chromomagnetic model by further considering the effect of color
interaction. The effective mass parameters between quark pairs ($m_{qq}$ or
$m_{q\bar{q}}$) are introduced to account both the effective quark masses and
the color interaction between the two quarks. Using the experimental masses of
hadrons, the quark pair parameters are determined between the light quark pairs
and the light-heavy quark pairs. Then the parameters of heavy quark pairs
($cc$, $cb$, $bb$) are estimated based on simple quark model assumption. We
calculate all masses of doubly and triply heavy-quark baryons. The newly
discovered doubly charmed baryon $\Xi_{cc}$ fits into the model with an error
of 12 MeV.

4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph