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Deriving the existence of B(B)over-bar* bound states from the X(3872) and heavy quark symmetry
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Deriving the existence of B(B)over-bar* bound states from the X(3872) and heavy quark symmetry
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| dc.contributor.author | Nieves Pamplona, Juan Miguel | |
| dc.contributor.author | Pavón Valderrama, Manuel | |
| dc.date.accessioned | 2014-10-28T12:20:28Z | |
| dc.date.available | 2014-10-28T12:20:28Z | |
| dc.date.issued | 2011 | |
| dc.identifier.citation | Nieves Pamplona, Juan Miguel Pavón Valderrama, Manuel 2011 Deriving the existence of B(B)over-bar* bound states from the X(3872) and heavy quark symmetry Physical Review D 84 5 056015 | |
| dc.identifier.uri | http://hdl.handle.net/10550/39431 | |
| dc.description.abstract | We discuss the possibility and the description of bound states between B and (B) over bar* mesons. We argue that the existence of such a bound state can be deduced from (i) the weakly bound X(3872) state, (ii) certain assumptions about the short-range dynamics of the D (D) over bar* system and (iii) heavy quark symmetry. From these assumptions the binding energy of the possible B (B) over bar* bound states is determined, first in a theory containing only contact interactions which serves as a straightforward illustration of the method, and then the effects of including the one-pion exchange potential are discussed. In this latter case three isoscalar states are predicted: a positive and negative C-parity S-3(1) - D-3(1) state with a binding energy of 20 MeV and 6 MeV below threshold, respectively, and a positive C-parity P-3(0) shallow state located almost at the B (B) over bar* threshold. However, large uncertainties are generated as a consequence of the 1/m(Q) corrections from heavy quark symmetry. Finally, the newly discovered isovector Z(b)(10610) state can be easily accommodated within the present framework by a minor modification of the short-range dynamics. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2011, vol. 84, num. 5, p. 056015 | |
| dc.subject | Física | |
| dc.title | Deriving the existence of B(B)over-bar* bound states from the X(3872) and heavy quark symmetry | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-10-28T12:20:28Z | |
| dc.identifier.doi | 10.1103/PhysRevD.84.056015 | |
| dc.identifier.idgrec | 069146 | |
| dc.rights.accessRights | open access | es_ES |
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