Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: HQE parameters from unquenched lattice data on pseudoscalar and vector
  heavy-light meson masses   We present a new lattice determination of some of the parameters appearing
both in the Operator Product Expansion (OPE) analysis of the inclusive
semileptonic $B$-meson decays and in the Heavy Quark Expansion (HQE) of the
pseudoscalar (PS) and vector (V) heavy-light meson masses. We perform a lattice
QCD (LQCD) computation of PS and V heavy-light meson masses for heavy-quark
masses $m_h$ in the range from $m_c^{\rm phys}$ to $\simeq 4m_b^{\rm phys}$. We
employed the $N_f = 2+1+1$ gauge configurations of the European Twisted Mass
Collaboration (ETMC) at three values of the lattice spacing $a \simeq (0.062,
0.082, 0.089)$ fm with pion masses in the range $M_\pi \simeq (210 - 450)$ MeV.
The heavy-quark mass is simulated directly on the lattice up to $\simeq
3m_c^{\rm phys}$. The interpolation to the physical $m_b^{\rm phys}$ is
performed using the ETMC ratio method and adopting the kinetic mass scheme. We
obtain $m_b^{\rm kin}(1~\mbox{GeV}) = 4.61 (20)$ GeV
($\overline{m}_b(\overline{m}_b) = 4.26 (18)$ GeV in the $\overline{\rm MS}$
scheme). The lattice data are analyzed in terms of the HQE and the matrix
elements of dimension-4 and dimension-5 operators are extracted with good
precision, namely: $\overline{\Lambda} = 0.552 (26)$ GeV, $\mu_\pi^2 = 0.321
(32)$ GeV$^2$ and $\mu_G^2(m_b) = 0.253 (25)$ GeV$^2$. The data also allow for
an estimate of the dimension-6 operator matrix elements.

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The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
14
The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: eess