258 citations · 626 across the 18 of their papers we have counts for
19 papers
Short-range dynamics of and in a coupled-channel framework
Fang-Zheng Peng, Li-Sheng Geng, Ju-Jun Xie
We study the short-range dynamics in the coupled-channel description of the -wave and systems for and , respectively. Contact inte…
Quarkoniumlike states above open-flavor thresholds in Born-Oppenheimer EFT
Nora Brambilla, Roberto Bruschini, Abhishek Mohapatra +2
Many quarkoniumlike states have been observed above open-flavor thresholds, but their organization and internal structure remain unsettled. We study the isoscalar hidden-charm and…
Constraining the hidden-charm pentaquark predictions and discriminating the and spins through the effective range expansion
Fang-Zheng Peng, Li-Sheng Geng, Ju-Jun Xie
The Weinberg compositeness criterion dictates that a pure shallow bound state is characterized by a large scattering length and a positive effective range…
Molecular charmed baryons and pentaquarks from light-meson exchange saturation
Mao-Jun Yan, Fang-Zheng Peng, Manuel Pavon Valderrama
The spectrum of the baryons contains a few states whose nature is not clearly a three-quark composite and which might have a sizable baryon-meson component. Examples include…
Heavy- and light-flavor symmetry partners of the , the and the from light-meson exchange saturation
Fang-Zheng Peng, Mao-Jun Yan, Manuel Pavon Valderrama
The spectrum of the charmed meson-(anti)meson system is a fundamental tool for disentangling the nature of a few exotic hadrons, including the recently discovered …
Rethinking the as the isoquartet molecule
Fang-Zheng Peng, Mao-Jun Yan, Mario Sánchez Sánchez +1
The nature of the , and pentaquarks is a fascinating theoretical question. Within the molecular picture their more usual interpretation is that…
Molecular pentaquarks from light-meson exchange saturation
Zi-Ying Yang, Fang-Zheng Peng, Mao-Jun Yan +2
Theoretical predictions for the spectrum of heavy meson-baryon bound states are a fundamental tool for disentangling the nature of the different pentaquark states that have been ob…
The pentaquark and its partners in the molecular picture
Mao-Jun Yan, Fang-Zheng Peng, Mario Sánchez Sánchez +1
The LHCb collaboration has detected a new hidden-charm pentaquark with the quantum numbers of a baryon: the . This pentaquark will be interpreted as a $\bar{D}_…
Light- and heavy-quark symmetries and the , , , and resonances
Fang-Zheng Peng, Mao-Jun Yan, Mario Sánchez Sánchez +1
The heavy hadron spectrum is constrained by symmetries, of which two of the most important ones are heavy-quark spin and SU(3)-flavor symmetries. Here we argue that in the molecula…
Interpretations of the new LHCb pentaquark state
Mao-Jun Yan, Fang-Zheng Peng, Mario Sánchez Sánchez +1
Recently the LHCb collaboration has observed a new pentaquark state, the . Owing to its proximity to the , , and $\bar{D} Σ_…
Axial meson exchange and the and resonances as heavy hadron molecules
Mao-Jun Yan, Fang-Zheng Peng, Mario Sánchez Sánchez +1
Early speculations about the existence of heavy hadron molecules were grounded on the idea that light-meson exchanges forces could lead to binding. In analogy to the deuteron, the…
Heavy-hadron molecular spectrum from light-meson exchange saturation
Fang-Zheng Peng, Mario Sánchez Sánchez, Mao-Jun Yan +1
If known, the spectrum of heavy-hadron molecules will be a key tool to disentangle the nature of the exotic states that are being discovered in experiments. Here we argue that the…
The pentaquark from a combined effective field theory and phenomenological perspective
Fang-Zheng Peng, Mao-Jun Yan, Mario Sánchez Sánchez +1
The observation of the by the LHCb collaboration adds a new member to the set of known hidden-charm pentaquarks, which includes the , and $P_c…
Peaks within peaks and the possible two-peak structure of the Pc(4457): the effective field theory perspective
Fang-Zheng Peng, Jun-Xu Lu, Mario Sánchez Sánchez +2
The LHCb pentaquarks -- the , and -- have been theorized to be and S-wave molecules. Here we explore the possibilit…
Heavy-hadron molecules from light-meson-exchange saturation
Fang-Zheng Peng, Ming-Zhu Liu, Mario Sánchez Sánchez +1
In the effective field theory framework the interaction between two heavy hadrons can be decomposed into a long- and a short-range piece. The long-range piece corresponds to the on…
Model independent determination of the spins of the (4440) and (4457) from the spectroscopy of the triply charmed dibaryons
Ya-Wen Pan, Ming-Zhu Liu, Fang-Zheng Peng +3
The LHCb collaboration has recently observed three narrow pentaquark states --- the , , and ---that are located close to the and $\b…
Five-flavor pentaquarks and other light- and heavy-flavor symmetry partners of the LHCb hidden-charm pentaquark
Fang-Zheng Peng, Ming-Zhu Liu, Ya-Wen Pan +2
The discovery of three pentaquark peaks -- the , and -- by the LHCb collaboration has a series of interesting consequences for hadron spectroscop…
Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
Ming-Zhu Liu, Ya-Wen Pan, Fang-Zheng Peng +4
A recent analysis by the LHCb collaboration suggests the existence of three narrow pentaquark-like states --- the , and --- instead of just one in…
Heavy-Quark Symmetry Partners of the Pc(4450) Pentaquark
Ming-Zhu Liu, Fang-Zheng Peng, Mario Sanchez Sanchez +1
The spectrum of heavy-hadron molecules is constrained by heavy-quark symmetry in its different manifestations. Heavy-quark spin symmetry for instance connects the properties of the…