Constituent mass predictions for axial vector (i.e., $J^P=1^+$) $cc$ and $bb$
colour antitriplet diquarks are generated using QCD Laplace sum-rules. We
calculate the diquark correlator within the operator product expansion to NLO,
including terms proportional to the four- and six-dimensional gluon and
six-dimensional quark condensates. The sum-rules analyses stabilize, and we
find that the mass of the $cc$ diquark is 3.51~GeV and the mass of the $bb$
diquark is 8.67~GeV. Using these diquark masses as inputs, we calculate several
tetraquark masses within the Type-II diquark-antidiquark tetraquark model.
Beschreibung
Axial Vector $cc$ and $bb$ Diquark Masses from QCD Laplace Sum-Rules
%0 Journal Article
%1 esau2019axial
%A Esau, S.
%A Palameta, A.
%A Kleiv, R. T.
%A Harnett, D.
%A Steele, T. G.
%D 2019
%K diquark doubly-heavy-diquark myown sum-rules tetraquark
%R 10.1103/PhysRevD.100.074025
%T Axial Vector $cc$ and $bb$ Diquark Masses from QCD Laplace Sum-Rules
%U http://arxiv.org/abs/1905.12803
%X Constituent mass predictions for axial vector (i.e., $J^P=1^+$) $cc$ and $bb$
colour antitriplet diquarks are generated using QCD Laplace sum-rules. We
calculate the diquark correlator within the operator product expansion to NLO,
including terms proportional to the four- and six-dimensional gluon and
six-dimensional quark condensates. The sum-rules analyses stabilize, and we
find that the mass of the $cc$ diquark is 3.51~GeV and the mass of the $bb$
diquark is 8.67~GeV. Using these diquark masses as inputs, we calculate several
tetraquark masses within the Type-II diquark-antidiquark tetraquark model.
@article{esau2019axial,
abstract = {Constituent mass predictions for axial vector (i.e., $J^P=1^+$) $cc$ and $bb$
colour antitriplet diquarks are generated using QCD Laplace sum-rules. We
calculate the diquark correlator within the operator product expansion to NLO,
including terms proportional to the four- and six-dimensional gluon and
six-dimensional quark condensates. The sum-rules analyses stabilize, and we
find that the mass of the $cc$ diquark is 3.51~GeV and the mass of the $bb$
diquark is 8.67~GeV. Using these diquark masses as inputs, we calculate several
tetraquark masses within the Type-II diquark-antidiquark tetraquark model.},
added-at = {2020-05-15T22:44:48.000+0200},
author = {Esau, S. and Palameta, A. and Kleiv, R. T. and Harnett, D. and Steele, T. G.},
biburl = {https://www.bibsonomy.org/bibtex/27d2fb1ceb1cba65ce39171ef96613c41/rkleiv},
description = {Axial Vector $cc$ and $bb$ Diquark Masses from QCD Laplace Sum-Rules},
doi = {10.1103/PhysRevD.100.074025},
interhash = {e7bbb402480fa2a37c1b70c27fb34b6c},
intrahash = {7d2fb1ceb1cba65ce39171ef96613c41},
keywords = {diquark doubly-heavy-diquark myown sum-rules tetraquark},
note = {cite arxiv:1905.12803Comment: Updated analysis, discussion and references},
timestamp = {2020-05-15T22:44:48.000+0200},
title = {Axial Vector $cc$ and $bb$ Diquark Masses from QCD Laplace Sum-Rules},
url = {http://arxiv.org/abs/1905.12803},
year = 2019
}