IFIC Literature Database -- Query Results

	IFIC Literature Database Home \| Show All \| Simple Search \| Advanced Search	Login Quick Search: Field: contains: ...
	1-10 of 38 records found matching your query:

Search & Display Options

Select All Deselect All

<< 1 2 3 4 >>

List View

Citations

Details

	Records
	Author	Albaladejo, M.; Oller, J.A.; Oset, E.; Rios, G.; Roca, L.
	Title	Finite volume treatment of pi pi scattering and limits to phase shifts extraction from lattice QCD			Type	Journal Article
	Year	2012	Publication	Journal of High Energy Physics	Abbreviated Journal	J. High Energy Phys.
	Volume	08	Issue	8	Pages	071 - 22pp
	Keywords	Lattice QCD; Chiral Lagrangians; Phenomenological Models
	Abstract	We study theoretically the effects of finite volume for pi pi scattering in order to extract physical observables for infinite volume from lattice QCD. We compare three different approaches for pi pi scattering (lowest order Bethe-Salpeter approach, N/D and inverse amplitude methods) with the aim of studying the effects of the finite size of the box in the potential of the different theories, specially the left-hand cut contribution through loops in the crossed t, u-channels. We quantify the error made by neglecting these effects in usual extractions of physical observables from lattice ()CD spectrum. We conclude that for pi pi phase-shifts in the scalar-isoscalar channel up to 800 MeV this effect is negligible for box sizes bigger than 2,5m(pi)(-1) and of the order of 5% at around 1.5 – 2m(pi)(-1). For isospin 2 the finite size effects can reach up to 10% for that energy. We also quantify the error made when using the standard Luscher method to extract physical observables from lattice QCD, which is widely used in the literature but is an approximation of the one used in the present work.
	Address	[Albaladejo, M.; Oller, J. A.; Rios, G.; Roca, L.] Univ Murcia, Dept Fis, E-30100 Murcia, Spain, Email: albaladejo@um.es;
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1126-6708	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000309883600014			Approved	no
	Is ISI	yes	International Collaboration	no
	Call Number	IFIC @ pastor @			Serial	1214
Permanent link to this record



	Author	Albaladejo, M.; Hidalgo-Duque, C.; Nieves, J.; Oset, E.
	Title	Hidden charm molecules in finite volume			Type	Journal Article
	Year	2013	Publication	Physical Review D	Abbreviated Journal	Phys. Rev. D
	Volume	88	Issue	1	Pages	014510 - 18pp
	Keywords
	Abstract	In the present paper we address the interaction of pairs of charmed mesons with hidden charm in a finite box. We use the interaction from a recent model based on heavy-quark spin symmetry that predicts molecules of hidden charm in the infinite volume. The energy levels in the box are generated within this model, and from them some synthetic data are generated. These data are then employed to study the inverse problem of getting the energies of the bound states and phase shifts for D (D) over bar or D(D) over bar. Different strategies are investigated using the lowest two levels for different values of the box size, and the errors produced are studied. Starting from the upper level, fits to the synthetic data are carried out to determine the scattering length and effective range plus the binding energy of the ground state. A similar strategy using the effective range formula is considered with a simultaneous fit to the two levels-one above and the other one below the threshold. This method turns out to be more efficient than the previous one. Finally, a method based on the fit to the data by means of a potential and a conveniently regularized loop function, turns out to be very efficient and allows us to produce accurate results in the infinite volume starting from levels of the box with errors far larger than the uncertainties obtained in the final results. A regularization method based on Gaussian wave functions turns out to be rather efficient in the analysis and as a byproduct a practical and fast method to calculate the Luscher function with high precision is presented.
	Address	[Albaladejo, M.; Hidalgo-Duque, C.; Nieves, J.; Oset, E.] Ctr Mixto CSIC UV, Inst Invest Paterna, Inst Fis Corpuscular, Valencia 46071, Spain, Email: Miguel.Albaladejo@ific.uv.es;
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1550-7998	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000322082000006			Approved	no
	Is ISI	yes	International Collaboration	no
	Call Number	IFIC @ pastor @			Serial	1493
Permanent link to this record



	Author	Albaladejo, M.; Oset, E.
	Title	Combined analysis of the pn -> d pi(+)pi(-) and pn -> pn pi(+)pi(-) cross sections and implications for the interpretation of the pn -> d pi(+)pi(-) data			Type	Journal Article
	Year	2013	Publication	Physical Review C	Abbreviated Journal	Phys. Rev. C
	Volume	88	Issue	1	Pages	014006 - 6pp
	Keywords
	Abstract	We use recent data that show a narrow peak around root s = 2.37 GeV in the pn -> d pi(+)pi(-) cross section, with about double strength at the peak than in the analogous pn -> d pi(0)pi(0) reaction, and, assuming that it is due to the excitation of a dibaryon resonance, we evaluate the cross section for the pn -> pn pi(+)pi(-) reaction, with the final pn unbound but with the same quantum numbers as the deuteron. We use accurate techniques to determine the final state interaction in the case of the pn forming a deuteron or a positive energy state, which allow us to get the pn -> pn pi(+)pi(-) cross section with pn in I = 0 and S = 1, that turns out to be quite close or saturates the experimental pn -> pn pi(+)pi(-) total cross section around root s = 2.37 GeV, depending on the angular momentum assumed. This poses problems to the assumption of the dibaryon hypothesis, which could be rendered more restrictive with future precise data on the pn -> pn pi(+)pi(-) reaction.
	Address	[Albaladejo, M.] Ctr Mixto Univ Valencia CSIC, Dept Fis Teor, Valencia 46071, Spain
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0556-2813	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000322531400001			Approved	no
	Is ISI	yes	International Collaboration	no
	Call Number	IFIC @ pastor @			Serial	1521
Permanent link to this record



	Author	Liang, W.H.; Albaladejo, M.; Oset, E.
	Title	*Searching for a hidden charm h(1) state in the X(4660) -> eta h(1) and X(4660) -> eta D(D)over-bar* decays**			Type	Journal Article
	Year	2013	Publication	Physical Review D	Abbreviated Journal	Phys. Rev. D
	Volume	88	Issue	7	Pages	074027 - 7pp
	Keywords
	Abstract	We explore the possibility of experimentally detecting a predicted h(1) inverted right perpendicular I-G(J(PC)) = 0(-)(1(+-))inverted left perpendicular state of hidden charm made out from the D(D) over bar interaction. The method consists in measuring the decay of X(4660) into eta D(D) over bar and determining the binding energy with respect to the D(D) over bar threshold from the shape of the D(D) over bar invariant mass distribution. A complementary method consists in looking at the inclusive X(4660) -> eta X decay and searching for a peak in the X invariant mass distribution. We make calculations to determine the partial decay width of X(4660) -> eta h(1) from the measured X(4660) -> eta D(D) over bar distribution. This estimation should serve in an experiment to foresee the possibility of detecting the h(1) state on top of the background of inclusive events.
	Address	[Liang, Weihong] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: liangwh@gxnu.edu.cn
	Corporate Author				Thesis
	Publisher	Amer Physical Soc	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1550-7998	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000326109700003			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	1628
Permanent link to this record



	Author	Xie, J.J.; Albaladejo, M.; Oset, E.
	Title	*Signature of an h(1) state in the J/psi -> eta h(1) -> eta K(0)(K)over-bar(0) decay*			Type	Journal Article
	Year	2014	Publication	Physics Letters B	Abbreviated Journal	Phys. Lett. B
	Volume	728	Issue		Pages	319-322
	Keywords
	Abstract	The BES data on the J/psi -> eta K(0)(K) over bar(0) reaction show a clear enhancement in the K(0)(K) over bar(0) mass distribution close to the threshold of this channel. Such an enhancement is usually a signature of an L = 0 resonance around threshold, which in this case would correspond to an h1 state with quantum numbers I-G(J(Pc))= 0(-)(1(+-)). A state around 1800 MeV results from the interaction of the KTC using the local hidden gauge approach. We show that the peak observed in J/psi -> eta K(0)(K) over bar(0) naturally comes from the creation of this h(1) state with mass and width around 1830 MeV and 110 MeV, respectively. A second analysis, model independent, corroborates the first result, confirming the relationship of the enhancement in the invariant mass spectrum with the h(1) resonance.
	Address	[Xie, Ju-Jun] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China, Email: albaladejo@ipno.in2p3.fr
	Corporate Author				Thesis
	Publisher	Elsevier Science Bv	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0370-2693	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000330556000052			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	1706
Permanent link to this record



	Author	Oset, E.; Albaladejo, M.; Xie, J.J.; Ramos, A.
	Title	Recent developments on hadron interaction and dynamically generated resonances			Type	Journal Article
	Year	2014	Publication	International Journal of Modern Physics E	Abbreviated Journal	Int. J. Mod. Phys. E
	Volume	23	Issue	7	Pages	1461008 - 8pp
	Keywords	Hadron interaction; dynamically generated resonances
	Abstract	In this talk I report on the recent developments in the subject of dynamically generated resonances. In particular I discuss the gamma p -> K-0 Sigma+ and gamma n -> K-0 Sigma(0) reactions, with a peculiar behavior around the K(0)Lambda threshold, due to a 1/2(-) resonance around 2035 MeV. Similarly, I discuss a BES experiment, J/psi -> eta K(0) (K) over bar*(0) decay, which provides evidence for a new h(1) resonance around 1830 MeV that was predicted from the vector-vector interaction. A short discussion is then made about recent advances in the charm and beauty sectors.
	Address	[Oset, E.; Albaladejo, M.; Ramos, A.] Univ Valencia, Inst Invest Paterna, Ctr Mixto, Dept Fis Teor,CSIC, Valencia 46071, Spain, Email: oset@ific.uv.es
	Corporate Author				Thesis
	Publisher	World Scientific Publ Co Pte Ltd	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0218-3013	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000341934000009			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	1946
Permanent link to this record



	Author	Albaladejo, M.; Nielsen, M.; Oset, E.
	Title	*Ds0(+/-)(2317) and K D scattering from Bs(0) decay**			Type	Journal Article
	Year	2015	Publication	Physics Letters B	Abbreviated Journal	Phys. Lett. B
	Volume	746	Issue		Pages	305-310
	Keywords
	Abstract	We study the (B) over bar (0)(s) -> D-s(-)(KD)(+) weak decay, and look at the KD invariant mass distribution, for which we use recent lattice QCD results for the KDinteraction from where the D-s0(2317) resonance appears as a KD bound state. Since there are not yet experimental data on this reaction, in a second step we propose an analysis method to obtain information on the D-s0 (2317) resonance from the future experimental KD mass distribution in this decay. For this purpose, we generate synthetic data taking a few points from our theoretical distribution, to which we add a 5% or 10% error. With this analysis method, we prove that one can obtain from these “data” the existence of a bound KD state, the KD scattering length and effective range, and most importantly, the KD probability in the wave function of the bound state obtained, which was found to be largely dominant in lattice QCD studies. This means that one can obtain information on the nature of the D-s0*(+) (2317) resonance from the implementation of this experiment, in the line of finding the structure of resonances, which is one of the main aims in hadron spectroscopy.
	Address	[Albaladejo, Miguel; Oseta, Eulogio] Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,Dept Fis Teor, Valencia 46071, Spain, Email: Miguel.Albaladejo@ific.uv.es;
	Corporate Author				Thesis
	Publisher	Elsevier Science Bv	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0370-2693	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000355378200048			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	2248
Permanent link to this record



	Author	Albaladejo, M.; Moussallam, B.
	Title	Form factors of the isovector scalar current and the eta pi scattering phase shifts			Type	Journal Article
	Year	2015	Publication	European Physical Journal C	Abbreviated Journal	Eur. Phys. J. C
	Volume	75	Issue	10	Pages	488 - 16pp
	Keywords
	Abstract	A model for S-wave eta pi scattering is proposed which could be realistic in an energy range from threshold up to above 1 GeV, where inelasticity is dominated by the K (K) over bar channel. The T-matrix, satisfying two-channel unitarity, is given in a form which matches the chiral expansion results at order p(4) exactly for the eta pi -> eta pi, eta pi -> K (K) over bar amplitudes and approximately for K (K) over bar -> K (K) over bar. It contains six phenomenological parameters. Asymptotic conditions are imposed which ensure a minimal solution of the Muskhelishvili-Omnes problem, thus allowing one to compute the eta pi and K (K) over bar form factor matrix elements of the I = 1 scalar current from the T-matrix. The phenomenological parameters are determined such as to reproduce the experimental properties of the a(0)(980), a(0)(1450) resonances, as well as the chiral results of the eta pi and K (K) over bar scalar radii, which are predicted to be remarkably small at O(p(4)). This T-matrix model could be used for a unified treatment of the eta pi final-state interaction problem in processes such as eta ' -> eta pi pi, phi -> eta pi gamma or the eta pi initial-state interaction in eta -> 3 pi.
	Address	[Albaladejo, M.; Moussallam, B.] Univ Paris 11, Grp Phys Theor, IPN UMR8608, Orsay, France, Email: Miguel.Albaladejo@ific.uv.es;
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1434-6044	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000362951600001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	2415
Permanent link to this record



	Author	Albaladejo, M.; Guo, F.K.; Hidalgo-Duque, C.; Nieves, J.; Pavon Valderrama, M.
	Title	Decay widths of the spin-2 partners of the X(3872)			Type	Journal Article
	Year	2015	Publication	European Physical Journal C	Abbreviated Journal	Eur. Phys. J. C
	Volume	75	Issue	11	Pages	547 - 26pp
	Keywords
	Abstract	We consider the X(3872) resonance as a J(PC) = 1(++) D (D) over bar* hadronic molecule. According to heavy quark spin symmetry, there will exist a partner with quantum numbers 2(++), X-2, which would be a D(D) over bar loosely bound state. The X-2 is expected to decay dominantly into D (D) over bar, D (D) over bar* and (D) over barD* in d-wave. In this work, we calculate the decay widths of the X-2 resonance into the above channels, as well as those of its bottom partner, X-b2, the mass of which comes from assuming heavy flavor symmetry for the contact terms. We find partial widths of the X-2 and X-b2 of the order of a few MeV. Finally, we also study the radiative X-2 -> D (D) over bargamma. and X-b2 -> (B) over bar Bgamma decays. These decay modes are more sensitive to the long-distance structure of the resonances and to the D (D) over bar* or B (B) over bar* final state interaction.
	Address	[Albaladejo, Miguel; Hidalgo-Duque, Carlos; Nieves, Juan] Univ Valencia, Inst Invest Paterna, Ctr Mixto CSIC, Inst Fis Corpuscular IFIC, Valencia 46071, Spain, Email: Miguel.Albaladejo@ific.uv.es;
	Corporate Author				Thesis
	Publisher	Springer	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1434-6044	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000365886000001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	2487
Permanent link to this record



	Author	Oset, E. et al; Albaladejo, M.; Nieves, J.; Fernandez-Soler, P.; Sun, Z.F.
	Title	Weak decays of heavy hadrons into dynamically generated resonances			Type	Journal Article
	Year	2016	Publication	International Journal of Modern Physics E	Abbreviated Journal	Int. J. Mod. Phys. E
	Volume	25	Issue	1	Pages	1630001 - 105pp
	Keywords	Heavy meson and baryon weak decays; mesonic and baryonic resonances; final state interaction
	Abstract	In this paper, we present a review of recent works on weak decay of heavy mesons and baryons with two mesons, or a meson and a baryon, interacting strongly in the final state. The aim is to learn about the interaction of hadrons and how some particular resonances are produced in the reactions. It is shown that these reactions have peculiar features and act as filters for some quantum numbers which allow to identify easily some resonances and learn about their nature. The combination of basic elements of the weak interaction with the framework of the chiral unitary approach allow for an interpretation of results of many reactions and add a novel information to different aspects of the hadron interaction and the properties of dynamically generated resonances.
	Address	[Oset, Eulogio; Xie, Ju-Jun] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
	Corporate Author				Thesis
	Publisher	World Scientific Publ Co Pte Ltd	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0218-3013	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000371308700001			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	2568
Permanent link to this record

Select All Deselect All

<< 1 2 3 4 >>

List View

Citations

Details

All Found Records Selected Records:

Save Citations: Format:

Export Records: Format:

Home

CQL Search | Library Search | Show Record | Extract Citations

Help