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Records |
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Author |
Xiao, C.W.; Bayar, M.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Prediction of D*-multi-rho states |
Type |
Journal Article |
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Year |
2012 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
86 |
Issue |
9 |
Pages |
094019 - 10pp |
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Keywords |
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Abstract |
We present a study of the many-body interaction between a D* and multi-rho. We use an extrapolation to SU(4) of the hidden gauge formalism, which produced dynamically the resonances f(2)(1270) in the rho rho interaction and D-2* (2460) in the rho D* interaction. We then let a third particle, rho, D*, or a resonance, collide with them, evaluating the scattering amplitudes in terms of the fixed center approximation of the Faddeev equations. We find several clear resonant structures above 2800 MeV in the multibody scattering amplitudes. They would correspond to new charmed resonances, D-3*, D-4*, D-5*, and D-6*, which are not yet listed in the Particle Data Group, which would be analogous to the rho(3)(1690), f(4)(2050), rho(5)(2350), f(6)(2510) and K-3*(1780), K-4*(2045), K-5*(2380) described before as multi-rho and K*-multi-rho states, respectively. |
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Address |
[Xiao, C. W.; Bayar, M.; Oset, E.] Univ Valencia, CSIC, Inst Invest Paterna, Ctr Mixto,IFIC, Valencia 46071, Spain |
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Publisher |
Amer Physical Soc |
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English |
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ISSN |
1550-7998 |
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Notes |
WOS:000310989500004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1223 |
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Permanent link to this record |
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Author |
Bayar, M.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
(K)over-bar N N absorption within the framework of the fixed-center approximation to Faddeev equations |
Type |
Journal Article |
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Year |
2013 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
88 |
Issue |
4 |
Pages |
044003 - 8pp |
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Keywords |
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Abstract |
We present a method to evaluate the (K) over bar absorption width in the bound (K) over bar N N system. Most calculations of this system ignore this channel and only consider the (K) over bar N -> pi Sigma conversion. Other works make a qualitative calculation using perturbative methods. Since the (1405) resonance is playing a role in the process, the same resonance is changed by the presence of the absorption channels andwe find that a full nonperturbative calculation is called for, which we present here. We employ the fixed center approximation to Faddeev equations to account for (K) over bar rescattering on the (NN) cluster and we find that the width of the states found previously for S = 0 and S = 1 increases by about 30 MeV due to the (K) over bar N N absorption, to a total width of about 80 MeV. |
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Address |
[Bayar, M.; Oset, E.] Ctr Mixto CSIC UV, Inst Fis Corpuscular, Inst Invest Paterna, Valencia 46071, Spain |
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Publisher |
Amer Physical Soc |
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English |
Summary Language |
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ISSN |
0556-2813 |
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Notes |
WOS:000326096400002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1624 |
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Permanent link to this record |
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Author |
Martinez Torres, A.; Bayar, M.; Jido, D.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Strategy to find the two Lambda (1405) states from lattice QCD simulations |
Type |
Journal Article |
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Year |
2012 |
Publication |
Physical Review C |
Abbreviated Journal |
Phys. Rev. C |
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Volume |
86 |
Issue |
5 |
Pages |
055201 - 13pp |
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Keywords |
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Abstract |
Theoretical studies within the chiral unitary approach, and recent experiments, have provided evidence of the existence of two isoscalar states in the region of the Lambda(1405). In this paper we use the same chiral approach to generate energy levels in a finite box. In a second step, assuming that these energies correspond to lattice QCD results, we devise the best strategy of analysis to obtain the two states in the infinite-volume case, with sufficient precision to distinguish them. We find out that by using energy levels obtained with asymmetric boxes and/or with a moving frame, with reasonable errors in the energies, one has a successful scheme to get the two Lambda(1405) poles. |
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Address |
[Torres, A. Martinez; Jido, D.] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan |
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Amer Physical Soc |
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English |
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Series Volume |
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ISSN |
0556-2813 |
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Expedition |
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Conference |
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Notes |
WOS:000310685400008 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1226 |
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Permanent link to this record |
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Author |
Azizi, K.; Bayar, M.; Ozpineci, A.; Sarac, Y.; Sundu, H. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Semileptonic transition of Sigma(b) to Sigma in light cone QCD sum rules |
Type |
Journal Article |
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Year |
2012 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
85 |
Issue |
1 |
Pages |
016002 - 8pp |
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Keywords |
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Abstract |
We use distribution amplitudes of the light Sigma baryon and the most general form of the interpolating current for heavy Sigma(b) baryon to investigate the semileptonic Sigma(b) -> Sigma l(+)l(-) transition in light cone QCD sum rules. We calculate all 12 form factors responsible for this transition and use them to evaluate the branching ratio of the considered channel. The order of branching fraction shows that this channel can be detected at LHC. |
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Address |
[Azizi, K.] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey, Email: kazizi@dogus.edu.tr |
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Publisher |
Amer Physical Soc |
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English |
Summary Language |
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Series Volume |
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Series Issue |
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ISSN |
1550-7998 |
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Expedition |
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Conference |
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Notes |
WOS:000298925300006 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
871 |
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Permanent link to this record |
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Author |
Xiao, C.W.; Bayar, M.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
NDK, (K)over-barDN, and ND(K)over-bar molecules |
Type |
Journal Article |
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Year |
2011 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
84 |
Issue |
3 |
Pages |
034037 - 8pp |
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Keywords |
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Abstract |
We investigate theoretically baryon systems made of three hadrons which contain one nucleon and one D meson, and in addition another meson, (D) over tilde, K, or (K) over tilde. The systems are studied using the fixed center approximation to the Faddeev equations. The study is made assuming scattering of a K or a (K) over tilde on a DN cluster, which is known to generate the Lambda(c)(2595), or the scattering of a nucleon on the D (D) over tilde cluster, which has been shown to generate a hidden charm resonance named X(3700). We also investigate the configuration of scattering of N on the KD cluster, which is known to generate the D*(s0)(2317). In all cases we find bound states, with the NDK system, of exotic nature, more bound than the (K) over tilde DN. |
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Address |
[Xiao, CW; Bayar, M; Oset, E] Univ Valencia, Dept Fis Teor, Ctr Mixto, Valencia 46071, Spain |
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Corporate Author |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1550-7998 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000294135400007 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ elepoucu @ |
Serial |
725 |
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Permanent link to this record |