| Records |
Author  |
Albaladejo, M.; Guo, F.K.; Hanhart, C.; Meissner, U.G.; Nieves, J.; Nogga, A.; Yang, Z. |
| Title |
Note on X(3872) production at hadron colliders and its molecular structure |
Type |
Journal Article |
| Year |
2017 |
Publication |
Chinese Physics C |
Abbreviated Journal |
Chin. Phys. C |
| Volume |
41 |
Issue |
12 |
Pages |
121001 - 3pp |
| Keywords |
X(3872); hadronic molecules; exotic hadrons |
| Abstract |
The production of the X (3872) as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103 (2009) 162001, that the production of the X(3872) at high pT implies a non-molecular structure, does not hold. In particular, using the well understood properties of the deuteron wave function as an example, we identify the relevant scales in the production process. |
| Address |
[Albaladejo, Miguel] Univ Murcia, Dept Fis, E-30071 Murcia, Spain |
| Corporate Author |
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Thesis |
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| Publisher |
Chinese 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 |
|
Edition |
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| ISSN |
1674-1137 |
ISBN |
|
Medium |
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| Area |
|
Expedition |
|
Conference |
|
| Notes |
WOS:000417112000001 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
3397 |
| Permanent link to this record |
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| Author |
Guo, F.K.; Meissner, U.G.; Nieves, J.; Yang, Z. |
| Title |
Remarks on the P-c structures and triangle singularities |
Type |
Journal Article |
| Year |
2016 |
Publication |
European Physical Journal A |
Abbreviated Journal |
Eur. Phys. J. A |
| Volume |
52 |
Issue |
10 |
Pages |
318 - 6pp |
| Keywords |
|
| Abstract |
It was proposed that the narrow P-c(4450) structure observed by the LHCb Collaboration in the reaction Lambda(b) -> J/psi pK might be due to a triangle singularity around the chi(c1)-proton threshold at 4.45 GeV. We discuss the occurrence of a similar triangle singularity in the J/psi p invariant mass distribution for the decay Lambda(b) -> J/psi p pi, which could explain the bump around 4.45 GeV in the data. More precise measurements of this process would provide valuable information towards an understanding of the P-c structures. |
| Address |
[Guo, Feng-Kun] Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China, Email: fkguo@itp.ac.cn; |
| 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 |
1434-6001 |
ISBN |
|
Medium |
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| Area |
|
Expedition |
|
Conference |
|
| Notes |
WOS:000391807700001 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
2914 |
| Permanent link to this record |
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| Author |
Song, J.; Yang, Z.Y.; Oset, E. |
| Title |
Searching for the 2+partner of the Tcs0(2870) in the B- -> D- D0 K0S reaction |
Type |
Journal Article |
| Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
| Volume |
111 |
Issue |
9 |
Pages |
094004 - 7pp |
| Keywords |
|
| Abstract |
We study the B- -> D- D0 K0S reaction, recently analyzed by the LHCb Collaboration, where a clear signal for the exotic Tcs0(2870) state was reported. We call attention to a small peak in the D0K0S mass distribution that could correspond to a state of the same nature as the Tcs0(2870) (D*K<overline>* nature in the molecular picture), but with JP = 2+. In order to magnify the signal for the state, we calculate the moments of the angle-mass distribution, which are linear in the resonance signal, rather than quadratic for the angle integrated mass distribution. We find spectra for the moments with a strength far bigger than that for the angle integrated mass distribution, which should encourage the evaluation of these moments from the present measurements of the reaction. |
| Address |
[Song, Jing; Yang, Zi-Ying] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: oset@ific.uv.es |
| 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 |
2470-0010 |
ISBN |
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Medium |
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| Area |
|
Expedition |
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Conference |
|
| Notes |
WOS:001493737600004 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
6684 |
| Permanent link to this record |
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| Author |
Song, J.; Yang, Z.Y.; Oset, E. |
| Title |
Role of a0(1710) in the Ds plus -> ρ plus φ;ρ plus ω decays |
Type |
Journal Article |
| Year |
2025 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
| Volume |
111 |
Issue |
9 |
Pages |
094047 - 7pp |
| Keywords |
|
| Abstract |
We look into the D+s-* rho+phi and D+s-* rho+omega weak decays recently measured by the BESIII collaboration, which proceed very differently in a first step of the weak decay. While the first reaction proceeds directly via external emission, the second one does not go via external nor internal emission, what prompted the experimental team to claim that it proceeds via W-annihilation. We show in this work that the unexpectedly large rate of the D+s-* rho+omega has a different explanation since is it naturally obtained once final state interaction of the rho+phi; rho+omega and K*+K*0 channels is taken into consideration. The interaction of these channels produces the a0(1710) resonance, predicted long ago as a molecular state of these coupled channels, and only recently observed, and it is the presence of this resonance what makes the effect of the final state interaction very important in the weak decays and provides a natural explanation of the experimental decay rates at a quantitative level. We also take into account the D+s-* rho+omega decay in P-and D-waves empirically, and show that a good reproduction of the experimental results is obtained in this case. |
| Address |
[Song, Jing; Yang, Zi-Ying] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: oset@ific.uv.es |
| 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 |
2470-0010 |
ISBN |
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Medium |
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| Area |
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Expedition |
|
Conference |
|
| Notes |
WOS:001512777000002 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
6731 |
| Permanent link to this record |
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| Author |
Song, J.; Yang, Z.Y.; Oset, E. |
| Title |
Searching for signals of an exotic I=1,JP=2+ state of D*K* nature and the structure of the Pc(4312) in the Λb→Σc plus plus D-K- reaction |
Type |
Journal Article |
| Year |
2025 |
Publication |
Physics Letters B |
Abbreviated Journal |
Phys. Lett. B |
| Volume |
861 |
Issue |
|
Pages |
139294 - 7pp |
| Keywords |
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| Abstract |
This paper investigates the decay process Lambda-Sigma++-- with the objective of finding a predicted molecular state with isospin = 1, = 2+ of nature, plus finding support for the (4312) state as made out of Sigma. The mass distribution of the -- system shows distinct features as a consequence of the existence of this 2+ state, while the Sigma distribution exhibits a significant peak near the threshold, much bigger than phase space expectations, which is linked to our assumed Sigma nature of the (4312) state below the Sigma threshold. The reaction has been measured at LHCb Collaboration, but only the branching ratio is measured. The present study shows that much valuable information can be obtained about the predicted 2+ (2834) of nature and the (4312) states from the measurements of the mass distributions in this reaction, which will be accessible in the planned updates of LHCb. |
| Address |
[Song, Jing; Yang, Zi-Ying] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: oset@ific.uv.es |
| Corporate Author |
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Thesis |
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| Publisher |
Elsevier |
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 |
0370-2693 |
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:001421800400001 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
6530 |
| Permanent link to this record |
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| Author |
Yang, Z.; Cao, X.; Guo, F.K.; Nieves, J.; Pavon Valderrama, M. |
| Title |
Strange molecular partners of the Z(c)(3900) and Z(c)(4020) |
Type |
Journal Article |
| Year |
2021 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
| Volume |
103 |
Issue |
7 |
Pages |
074029 - 8pp |
| Keywords |
|
| Abstract |
Quantum chromodynamics presents a series of exact and approximate symmetries which can be exploited to predict new hadrons from previously known ones. The Z(c)(3900) and Z(c)(4020), which have been theorized to be isovector D*(D) over bar and D*(D) over bar* molecules [I-G(J(PC)) = 1(-)(1)(+-))], are no exception. Here we argue that from SU(3)-flavor symmetry, we should expect the existence of strange partners of the Z(c)'s with hadronic molecular configurations D*(D) over bar (s) – D (D) over bar*(s) and D*(D) over bar*(s) (or, equivalently, quark content c (c) over bars (q) over bar, with q = u, d). The quantum numbers of these Z(cs) and Z(cs)* structures would be I(J(P)) = 1/2 (1(+)). The predicted masses of these partners depend on the details of the theoretical scheme used, but they should be around the D*(D) over bar (s) – D (D) over bar*(s) and D*(D) over bar*(s) thresholds, respectively. Moreover, any of these states could be either a virtual pole or a resonance. We show that, together with a possible triangle singularity contribution, such a picture nicely agrees with the very recent BESIII data of the e(+)e(-) -> K+((Ds-D*0) + D*D--(s)0). |
| Address |
[Yang, Zhi] Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Peoples R China, Email: zhiyang@uestc.edu.cn; |
| 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 |
2470-0010 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
|
| Notes |
WOS:000648581900002 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
4832 |
| Permanent link to this record |
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| Author |
Yang, Z.Y.; Song, J.; Liang, W.H.; Oset, E. |
| Title |
Pc(4440) and Pc(4457) decay into (D)over-barΣc and (D)over-barΛc and the spin of the Pc states |
Type |
Journal Article |
| Year |
2025 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
| Volume |
85 |
Issue |
9 |
Pages |
954 - 12pp |
| Keywords |
|
| Abstract |
We address the issue of the width and spin assignment of the P-c(4440) and P-c(4457) pentaquark states. We calculate the partial decays widths of the particles into J/psi N, (D) over bar Sigma(c) and (D) over bar Lambda(c) with the first one obtained within a unitary approach with the coupled channels of J/psi N and (D) over bar*Sigma(c) with the interaction driven by vector meson exchange, and the last two by means of triangle diagrams involving pion exchange. The widths obtained depend much on the spin of the particles and we study the possible scenarios for spin assignment, favoring the 1/2(-), 3/2(-) order, although the large experimental errors do not rule out the opposite scenario. We predict values for decays in different channels and show that their precise determination would allow to decide on the spin of the states. |
| Address |
[Yang, Zi-Ying; Song, Jing] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: Song-Jing@buaa.edu.cn; |
| 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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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
WOS:001568455500002 |
Approved |
no |
| Is ISI |
yes |
International Collaboration |
yes |
| Call Number |
IFIC @ pastor @ |
Serial |
6834 |
| Permanent link to this record |
