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Author |
Debastiani, V.R.; Dias, J.M.; Liang, W.H.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Omega(-)(b) -> (Xi(+)(c) K-)pi(-) decay and the Omega(c) states |
Type |
Journal Article |
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Year |
2018 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
98 |
Issue |
9 |
Pages |
094022 - 8pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We study the weak decay Omega(-)(b) -> (Xi(+)(c) K-)pi(-), in view of the narrow Omega(c) states recently measured by the LHCb Collaboration and later confirmed by the Belle Collaboration. The Omega(c) (3050) and Omega(c) (3090) are described as meson-baryon molecular states, using an extension of the local hidden gauge approach in coupled channels. We investigate the Xi D, Xi(c)(K) over bar, and. Xi '(c) (K) over bar invariant mass distributions making predictions that could be confronted with future experiments, providing useful information that could help determine the quantum numbers and nature of these states. |
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Address |
[Debastiani, V. R.; Dias, J. M.; Oset, E.] Ctr Mixto Univ Valencia, CSIC, Dept Fis Teor, Inst Invest Paterna, Apartado 22085, Valencia 46071, Spain, Email: vinicius.rodrigues@ific.uv.es; |
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Amer Physical Soc |
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English |
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ISSN |
2470-0010 |
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Notes |
WOS:000451336400004 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
3822 |
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Author |
Bayar, M.; Liang, W.H.; Uchino, T.; Xiao, C.W. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Description of rho(1700) as a rho Kappa(sic) system with the fixed-center approximation |
Type |
Journal Article |
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Year |
2014 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
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Volume |
50 |
Issue |
4 |
Pages |
67 - 10pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We study the system with the aim to describe the rho(1700) resonance. The chiral unitary approach has achieved success in the description of systems of the light hadron sector. With this method, the system in the isospin sector I = 0, is found to be a dominant component of the f (0)(980) resonance. Therefore, by regarding the system as a cluster, the f (0)(980) resonance, we evaluate the system applying the fixed-center approximation to the Faddeev equations. We construct the rho K unitarized amplitude using the chiral unitary approach. As a result, we find a peak in the three-body amplitude around 1732 MeV and a width of about 161 MeV. The effect of the width of the rho and f (0)(980) is also discussed. We associate this peak to the rho(1700) which has a mass of 1720 +/- 20MeV and a width of 250 +/- 100 MeV. |
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Address |
[Bayar, M.; Liang, W. H.; Uchino, T.; Xiao, C. W.] Univ Valencia, CSIC, Ctr Mixto, Dept Fis Teor,Inst Invest Paterna, Valencia 46071, Spain, Email: uchino@ific.uv.es |
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Springer |
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English |
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ISSN |
1434-6001 |
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Notes |
WOS:000334272400001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1755 |
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Permanent link to this record |
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Author |
Liang, W.H.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Testing the origin of the f1(1420) with the Kbar p -> Lambda(Sigma) K Kbar pi reaction |
Type |
Journal Article |
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Year |
2020 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
80 |
Issue |
5 |
Pages |
407 - 8pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We study the K¯p→YKK¯π reactions with K¯=K¯0,K− and Y=Σ0,Σ+,Λ, in the region of KK¯π invariant masses of 1200−1550 MeV. The strong coupling of the f1(1285) resonance to K∗K¯ makes the mechanism based on K∗ exchange very efficient to produce this resonance observed in the KK¯π invariant mass distribution. In addition, in all the reactions one observes an associated peak at 1420 MeV which comes from the K∗K¯ decay mode of the f1(1285) when the K∗ is placed off shell at higher invariant masses. We claim this to be the reason for the peak of the K∗K¯ distribution seen in the experiments which has been associated to the “f1(1420)” resonance. |
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Address |
[Liang, Wei-Hong; Oseta, E.] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: liangwh@gxnu.edu.cn |
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Springer |
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English |
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ISSN |
1434-6044 |
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Notes |
WOS:000535820900003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
4409 |
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Permanent link to this record |
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Author |
Xiao, C.W.; Dias, J.M.; Dai, L.R.; Liang, W.H.; Oset, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Triangle singularity in the J/ψ → ϕ π+ a−0(π−η) ,ϕ π− a+0(π+η) decays |
Type |
Journal Article |
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Year |
2024 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
109 |
Issue |
7 |
Pages |
074033 - 11pp |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We study the J= psi -> phi pi + a 0 ( 980 ) – ( a – 0 -> pi – eta ) decay, evaluating the double mass distribution in terms of the pi – eta and pi + a – 0 invariant masses. We show that the pi – eta mass distribution exhibits the typical cusp structure of the a 0 ( 980 ) seen in recent high statistics experiments, and the pi + a – 0 spectrum shows clearly a peak around M inv ( pi + a – 0 ) = 1420 MeV, corresponding to a triangle singularity. When integrating over the two invariant masses we find a branching ratio for this decay of the order of 10 – 5 , which is easily accessible in present laboratories. We also call attention to the fact that the signal obtained is compatible with a bump experimentally observed in the eta pi + pi – mass distribution in the J= psi -> phi eta pi + pi – decay and encourage further analysis to extract from there the phi pi + a – 0 and phi pi – a + 0 decay modes. |
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Address |
[Xiao, C. W.; Liang, W. H.; Oset, E.] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: xiaochw@gxnu.edu.cn; |
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Publisher |
Amer Physical Soc |
Place of Publication |
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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 |
2470-0010 |
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Conference |
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Notes |
WOS:001236271000012 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6212 |
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Permanent link to this record |
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Author |
Liang, W.H.; Chen, H.X.; Oset, E.; Wang, E. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Triangle singularity in the J/psi -> K+K- f(0)(980)(a(0)(980)) decays |
Type |
Journal Article |
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Year |
2019 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
79 |
Issue |
5 |
Pages |
411 - 11pp |
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Keywords |
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Abstract ![sorted by Abstract field, descending order (down)](img/sort_desc.gif) |
We study the J/psi -> K+K- f(0)(980)(a(0)(980)) reaction and find that the mechanism to produce this decay develops a triangle singularity around M-inv(K- f(0)/K- a(0)) approximate to 1515 MeV. The differential width d Gamma/dM(inv)(K- f(0)/K- a(0)) shows a rapid growth around the invariant mass being 1515 MeV as a consequence of the triangle singularity of this mechanism, which is directly tied to the nature of the f(0)(980) and a(0)(980) as dynamically generated resonances from the interaction of pseudoscalar mesons. The branching ratios obtained for the J/psi -> K+K- f(0)(980)(a(0)(980)) decays are of the order of 10(-5), accessible in present facilities, and we argue that their observation should provide relevant information concerning the nature of the low-lying scalar mesons. |
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Address |
[Liang, Wei-Hong; Oset, Eulogio] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: hxchen@buaa.edu.cn; |
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Corporate Author |
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Thesis |
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Publisher |
Springer |
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 |
1434-6044 |
ISBN |
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Area |
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Expedition |
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Conference |
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Notes |
WOS:000468113500003 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
4022 |
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Permanent link to this record |