Prediction of new states from D(*)B(*)

Abstract

We study three-body systems composed of D ðÃÞ , B ðÃÞ , andB ðÃÞ in order to look for possible bound states or resonances. In order to solve the three-body problem, we use the fixed center approach for the Faddeev equations considering that the B ÃBà ðBBÞ are clusterized systems, generated dynamically, which interact with a third particle DðD Ã Þ whose mass is much smaller than the two-body bound states forming the cluster. In the DB ÃBà , D à B ÃBà , DBB, and D à BB systems with I ¼ 1=2, we found clear bound state peaks with binding energies typically a few tens MeV and more uncertain broad resonant states about ten MeV above the threshold with widths of a few tens MeV.

Possible bound states with hidden bottom from K¯(*)B(Ren1, Sun2 2019Phys. Rev. D15180View full textAdd to dashboardCite

“…Such phenomena of two peaks was also hinted in Ref [31],. where a bound state and a broad resonance were predicted.…”

Bound state formation in the DDK system

“…[17][18][19][20][21][22][23][24][25][26][27]). The existence of triple charm states has also been claimed [28], and doubly charmed/bottom three body systems have been studied [29][30][31][32]. However, in spite of all these efforts, the present available information about these states is still too preliminary to reach strong conclusions about their properties, and it still remains in the agenda of high energy physics to clarify the formation and nature of such states.…”

Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes

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“…Although we can experimentally thin down the hBN spacer until the monolayer case (16), we note that below thicknesses of 1 to 2 nm, strong nonlocal effects in the graphene should be introduced (16,34), given that we estimated the relative correction due to nonlocal effects to be~23% in our experiment (21). In addition, we estimated the nonlocal response of the metal (17,35,36) and found it to be negligible above 1 nm (21). The inclusion of these requires a special treatment that cannot be introduced into our numerical simulations.…”