scholarly journals Heavy Meson-Antimeson Molecules in Effective Field Theory: the Role of One Pion Exchange and Heavy Quark Spin Symmetry

2012 ◽  
Author(s):  
Manuel Pavon-Valderrama
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Spin Symmetry ◽  
Heavy Meson ◽  
Effective Field ◽  
Pion Exchange ◽  
Quark Spin ◽  
Heavy Quark Spin Symmetry

scholarly journals HEAVY QUARK SYMMETRIES: MOLECULAR PARTNERS OF THE X(3872) AND $Z_{b}(10610)/Z_{b}'(10650)$

2014 ◽  
Vol 26 ◽  
pp. 1460073 ◽  
Author(s):  
FENG-KUN GUO ◽  
CARLOS HIDALGO-DUQUE ◽  
JUAN NIEVES ◽  
MANUEL PAVÓN VALDERRAMA
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Heavy Baryon ◽  
Heavy Meson ◽  
Effective Field ◽  
Quark Spin

In this work, we have used an Effective Field Theory (EFT) framework based on Heavy Quark Spin (HQSS), Heavy Flavour (HFS) and Heavy Antiquark-Diquark symmetries (HADS). Using a standard lagrangian for the heavy meson-heavy antimeson system, we fit the counter-terms of the model to predict some promising experimental data that can be interpreted as heavy meson-heavy antimeson molecules, that is, the X(3872) and the [Formula: see text]. Next, and, taking advantage of HADS, we use the same lagrangian to explore the consequences for heavy meson-doubly heavy baryon molecules, which can also be interpreted as triply heavy pentaquarks.

RECENT PROGRESS IN CHARMONIUM PHYSICS: ROLE OF HEAVY MESON LOOPS

2011 ◽  
Vol 26 (03n04) ◽  
pp. 353-358
Author(s):  
CHRISTOPH HANHART
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Recent Progress ◽  
Heavy Meson ◽  
Effective Field ◽  
The Other ◽  
Inelastic Threshold ◽  
New States ◽  
Molecular Nature

In recent years a large number of new states in the charm sector was discovered above the first inelastic threshold that not at all match to the predictions of the quark model, which on the other hand was extremely successful below that threshold. Since most of those states are located close to a two–hadron threshold, many authors proposed a molecular nature for them. In this talk we will collect the evidences and discuss how the picture can be tested further. In addition, if hadron loops induce non-perturbative effects above the inelastic threshold, one should also expect them to have some impact on the properties of standard charmonia. In the last part of this write-up an effective field theory is introduced that allows one to investigate this issue systematically.

scholarly journals Light flavor and heavy quark spin symmetry in heavy meson molecules

2013 ◽  
Vol 87 (7) ◽  
Author(s):  
C. Hidalgo-Duque ◽  
J. Nieves ◽  
M. Pavón Valderrama
Keyword(s):  
Heavy Quark ◽  
Spin Symmetry ◽  
Heavy Meson ◽  
Quark Spin ◽  
Heavy Quark Spin Symmetry

scholarly journals Effective Field Theory approach to heavy quark fragmentation

2016 ◽  
Vol 2016 (11) ◽  
Author(s):  
Michael Fickinger ◽  
Sean Fleming ◽  
Chul Kim ◽  
Emanuele Mereghetti
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Effective Field ◽  
Theory Approach ◽  
Quark Fragmentation
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