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Investigation of $B\bar B$ four-quark systems using lattice QCD · Around

2016

Investigation of $B\bar B$ four-quark systems using lattice QCD

Peters, Antje, Bicudo, Pedro, Cichy, Krzysztof et al.

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We investigate $B \bar B$ systems by computing potentials of two static quarks in the presence of two quarks of finite mass using lattice QCD.

By solving the Schr\"odinger equation we check whether these potentials are sufficiently attractive to host bound states.
Particular focus is put on the experimentally most promising bottomonium-like tetraquark candidate $Z_b^\pm$ with quantum numbers $I(J^P)=1(1^+)$.

Built on

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W. Detmold, K. Orginos and M. J. Savage, “ B B BB potentials in quenched lattice QCD,” Phys. Rev. D 76
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P. Bicudo and M. Wagner, “Lattice QCD signal for a bottom-bottom tetraquark,” Phys. Rev. D 87
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J. Scheunert, P. Bicudo, A. Uenver and M. Wagner, “Refined lattice/model investigation of u d b ¯ b ¯ ud\bar{b}\bar{b} tetraquark candidates with heavy spin effects taken into account,” Acta Phys. Polon. Supp. 8
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P. Bicudo, K. Cichy, A. Peters and M. Wagner, “BB interactions with static bottom quarks from Lattice QCD,” Phys. Rev. D 93
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2012

Cited alongside, same era.

P. Bicudo, K. Cichy, A. Peters, B. Wagenbach and M. Wagner, “Evidence for the existence of u d b ¯ b ¯ ud\bar{b}\bar{b} and the non-existence of s s b ¯ b ¯ ss\bar{b}\bar{b} and c c b ¯ b ¯ cc\bar{b}\bar{b} tetraquarks from lattice QCD,” Phys. Rev. D 92

Cited in the paper.

A. Peters, P. Bicudo, K. Cichy, B. Wagenbach and M. Wagner, “Exploring possibly existing q q b ¯ b ¯ qq\bar{b}\bar{b} tetraquark states with q q = u d , s s , c c qq=ud,ss,cc ,” arXiv:1508.00343 [hep-lat]

Cited in the paper.

M. S. Cook and H. R. Fiebig, “A lattice study of interaction mechanisms in a heavy-light meson meson system,” arXiv:hep-lat/0210054

Cited in the paper.