%0 Generic %1 Karliner2014Baryons %A Karliner, Marek %A Rosner, Jonathan L. %D 2014 %K cbaryon %T Baryons with two heavy quarks: Masses, production, decays, and detection %U http://arxiv.org/abs/1408.5877 %X The large number of \$B\_c\$ mesons observed by LHCb suggests a sizable cross section for producing doubly-heavy baryons in the same experiment. Motivated by this, we estimate masses of the doubly-heavy \$J=1/2\$ baryons \$\Xi\_cc\$, \$\Xi\_bb\$, and \$\Xi\_bc\$, and their \$J=3/2\$ hyperfine partners, using a method which accurately predicts the masses of ground-state baryons with a single heavy quark. We obtain \$M(\Xi\_cc) = 3627 12\$ MeV, \$M(\Xi\_cc^*)= 3690 12\$ MeV, \$M(\Xi\_bb) = 10162 12\$ MeV, \$M(\Xi\_bb^*)= 10184 \pm 12\$ MeV, \$M(\Xi\_bc) = 6914 13\$ MeV, \$M(\Xi'\_bc) = 6933 12\$ MeV, and \$M(\Xi\_bc^*) = 6969 14\$ MeV. As a byproduct, we estimate the hyperfine splitting between \$B\_c^*\$ and \$B\_c\$ mesons to be \$68 8\$ MeV. We discuss P-wave excitations, production mechanisms, decay modes, lifetimes, and prospects for detection of the doubly heavy baryons.

@misc{Karliner2014Baryons, abstract = {The large number of \$B\_c\$ mesons observed by LHCb suggests a sizable cross section for producing doubly-heavy baryons in the same experiment. Motivated by this, we estimate masses of the doubly-heavy \$J=1/2\$ baryons \$\Xi\_{cc}\$, \$\Xi\_{bb}\$, and \$\Xi\_{bc}\$, and their \$J=3/2\$ hyperfine partners, using a method which accurately predicts the masses of ground-state baryons with a single heavy quark. We obtain \$M(\Xi\_{cc}) = 3627 \pm 12\$ MeV, \$M(\Xi\_{cc}^*)= 3690 \pm 12\$ MeV, \$M(\Xi\_{bb}) = 10162 \pm 12\$ MeV, \$M(\Xi\_{bb}^*)= 10184 \pm 12\$ MeV, \$M(\Xi\_{bc}) = 6914 \pm 13\$ MeV, \$M(\Xi'\_{bc}) = 6933 \pm 12\$ MeV, and \$M(\Xi\_{bc}^*) = 6969 \pm 14\$ MeV. As a byproduct, we estimate the hyperfine splitting between \$B\_c^*\$ and \$B\_c\$ mesons to be \$68 \pm 8\$ MeV. We discuss P-wave excitations, production mechanisms, decay modes, lifetimes, and prospects for detection of the doubly heavy baryons.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Karliner, Marek and Rosner, Jonathan L.}, biburl = {https://www.bibsonomy.org/bibtex/2bccbfaa7475967a2a4c819cf5edd4f32/cmcneile}, citeulike-article-id = {13337759}, citeulike-linkout-0 = {http://arxiv.org/abs/1408.5877}, citeulike-linkout-1 = {http://arxiv.org/pdf/1408.5877}, day = 25, eprint = {1408.5877}, interhash = {43a23fc4f8613c2a9b0b0befe2f45860}, intrahash = {bccbfaa7475967a2a4c819cf5edd4f32}, keywords = {cbaryon}, month = aug, posted-at = {2014-08-26 10:39:54}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{Baryons with two heavy quarks: Masses, production, decays, and detection}}, url = {http://arxiv.org/abs/1408.5877}, year = 2014 }