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Hadronic molecules in the heavy baryon spectrum / Entem, D R (Salamanca U., IUFFyM) ; Ortega, P G (CERN) ; Fernández, F (Salamanca U., IUFFyM)
We study possible baryon molecules in the non-strange heavy baryonspectrum. We include configurations with a heavy-meson and a light baryon. [...]
2016 - Published in : AIP Conf. Proc. 1701 (2016) 050003
In : 11th Quark Confinement and the Hadron Spectrum, Saint-petersburg, Russia, 8 - 12 Sep 2014, pp.050003

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Molecular components in $\mathbf{D_{s0}^{\ast}(2317)}$ and $\mathbf{D_{s1}(2460)}$ mesons / Ortega, Pablo G. (CERN) ; Segovia, Jorge (Munich, Tech. U.) ; Entem, David R. (Salamanca U.) ; Fernández, Francisco (Salamanca U.)
Different experiments have confirmed that the $D_{s0}^{\ast}(2317)$ and $D_{s1}(2460)$ mesons are very narrow states located, respectively, below the $DK$ and $D^{\ast}K$ thresholds. This is markedly in contrast with the expectations of naive quark models and heavy quark symmetry. [...]
arXiv:1609.01846.- 2016-11-29 - 4 p. - Published in : EPJ Web Conf. 130 (2016) 02009 Fulltext: epjconf_meson2016_02009 - PDF; arXiv:1609.01846 - PDF; External link: Preprint
In : 14th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 2 - 7 Jun 2016, pp.02009

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Molecular components in P-wave charmed-strange mesons / Ortega, Pablo G. (CERN) ; Segovia, Jorge (Munich, Tech. U.) ; Entem, David R. (Salamanca U. ; Salamanca U., IUFFyM) ; Fernandez, Francisco (Salamanca U. ; Salamanca U., IUFFyM)
Results obtained by various experiments show that the $D_{s0}^{\ast}(2317)$ and $D_{s1}(2460)$ mesons are very narrow states located below the $DK$ and $D^{\ast}K$ thresholds, respectively. This is markedly in contrast with the expectations of naive quark models and heavy quark symmetry. [...]
arXiv:1603.07000.- 2016-10-26 - 11 p. - Published in : Phys. Rev. D 94 (2016) 074037 APS Open Access article: PDF; Fulltext: arXiv:1603.07000 - PDF; 10.1103_PhysRevD.94.074037 - PDF; External link: Preprint

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$D^*\Delta$ molecular interpretation for the $X_c$(3250) / Ortega, P G (CERN) ; Entem, D R (Salamanca U., IUFFyM) ; Fernández, F (Salamanca U., IUFFyM)
Motivated by the newly observed structure at 3250 MeV / c 2 in the Σ ++ c π − π − invariant mass spectrum by the BaBar Collaboration, we study the possible D ∗ molecular structures in a constituent quark model. We found three possible molecules, with I ( J P ) quantum numbers 2 ( 1 2 − ) ,2 ( 3 2 − ) and 1 ( 5 2 − ) ,which are compatible with the measured mass. [...]
2014 - 3 p. - Published in : Phys. Lett. B 729 (2014) 24-26 Elsevier Open Access article: PDF;

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Bottomonium spectrum revisited / Segovia, Jorge (Munich, Tech. U. ; Salamanca U., IUFFyM) ; Ortega, Pablo G. (CERN) ; Entem, David R. (Salamanca U. ; Salamanca U., IUFFyM) ; Fernández, Francisco (Salamanca U. ; Salamanca U., IUFFyM)
We revisit the bottomonium spectrum motivated by the recently exciting experimental progress in the observation of new bottomonium states, both conventional and unconventional. Our framework is a nonrelativistic constituent quark model which has been applied to a wide range of hadronic observables from the light to the heavy quark sector and thus the model parameters are completely constrained. [...]
arXiv:1601.05093.- 2016-04-20 - 27 p. - Published in : Phys. Rev. D 93 (2016) 074027 Fulltext: arXiv:1601.05093 - PDF; 10.1103_PhysRevD.93.074027 - PDF; External link: Preprint

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Partners of the $X(3872)$ and HQSS breaking / Entem, D.R. (Salamanca U., IUFFyM) ; Ortega, P.G. (CERN) ; Fernandez, F. (Salamanca U., IUFFyM)
Since the discovery of the $X(3872)$ the study of heavy meson molecules has been the subject of many investigations. On the experimental side different experiments have looked for its spin partners and the bottom analogs. [...]
arXiv:1601.03901.- 2016-05-25 - 6 p. - Published in : AIP Conf. Proc. 1735 (2016) 060006 Fulltext: PDF; External link: Preprint
In : 16th International Conference on Hadron Spectroscopy, Newport News, VI, USA, 13 - 18 Sep 2015, pp.060006

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Molecular charmonium. A new spectroscopy? / Fernandez, F (Salamanca U., IUFFyM) ; Ortega, P G (CERN) ; Entem, D R (Salamanca U., IUFFyM)
Using a constituent quark model, we study the mass and decay channels of meson meson and mesonbaryon structures in the charm sector.We show that the X(3872) and the X(3940) resonances can be described as mixed charmonium-molecular states withJPC = 1++, whereas the X(3915) and the Y(3940) can be assigned to similar mixed states withJPC = 0++.In the baryonspectrum we identify theΛc+(2940)as a D*N molecule with(I)JP = (0)3/2−and the recently reported Xc(3250) as a D*Δ resonance with(I)JP = (2)1/2−..
2014 - 6 p. - Published in : AIP Conf. Proc. 1606 (2014) 168-173
In : 2nd Russian-Spanish Congress on Particle and Nuclear Physics at all scales and Cosmology, St. Petersburg, Russia, 1 - 4 Oct 2013, pp.168-173

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Puzzles in quarkonium hadronic transitions with two pion emission / Fernández, F. (Salamanca U., IUFFyM) ; Segovia, J. (Salamanca U., IUFFyM) ; Ortega, P.G. (CERN) ; Entem, D.R. (Salamanca U., IUFFyM)
The anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has been successful in describing hadronic phenomenology. The hybrid intermediate states needed in the QCDME method are calculated in a natural extension of our constituent quark model based on the Quark Confining String (QCS) scheme. [...]
arXiv:1501.02578.- 2016-01-22 - 4 p. - Published in : AIP Conf. Proc. 1701 (2016) 050019 Fulltext: PDF; External link: Preprint
In : 11th Quark Confinement and the Hadron Spectrum, Saint-petersburg, Russia, 8 - 12 Sep 2014, pp.050019

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The $X_c$(3250) as a $D^∗\Delta$ molecule / Ortega, P G (CERN) ; Entem, D R (Salamanca U., IUFFyM) ; Fernández, F (Salamanca U., IUFFyM)
A new structure at 3.25 GeV/c2 has been recently reported by the BaBar collaboration which has received the name of Xc(3250). A preliminary fit to this structure gives a mass M=3245± 20 MeV/c2 and a width G = 108±60 MeV/c2. [...]
2014 - Published in : PoS: Hadron2013 (2014) , pp. 074 Published version from PoS: PDF;
In : 15th International Conference on Hadron Spectroscopy, Nara, Japan, 4 - 8 Nov 2013, pp.074

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Također vidi: slična imena autora
48	Entem, D R
1	Entem, D R
5	Entem, David R
4	Entem, David R.

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