# Searching for observable effects induced by anomalous triangle singularities

@article{Liu2015SearchingFO, title={Searching for observable effects induced by anomalous triangle singularities}, author={Xiao-Hai Liu and Makoto Oka and Qiang Zhao}, journal={Physics Letters B}, year={2015}, volume={753}, pages={297-302} }

## 87 Citations

### The role of anomalous triangle singularity in the understanding of the recently observed heavy pentaquark candidates Pc+(4380) and Pc+(4450)

- Physics
- 2016

We discuss that the kinematic effects from the anomalous triangle singularity (ATS) can contribute to the enhancements of the newly observed heavy pentaquark candidates Pc+(4380) and Pc+(4450) in Λb…

### Understanding the nature of heavy pentaquarks and searching for them in pion-induced reactions

- Physics
- 2016

### Peaks and cusps: anomalous thresholds and LHC physics

- Physics
- 2018

The behavior of scattering amplitudes in the vicinity of a physical-region Landau singularity is considered. The impact on LHC processes is discussed.

### New Physics Opportunities in Triangle Singularity

- Physics
- 2022

We show that loop-induced processes involving new physics particles can readily satisfy Landau Equation and trigger triangular singularities at high energy colliders, leading to fully visible…

### Nonperturbative Anomalous Thresholds

- Physics
- 2022

Feynman diagrams (notably the triangle diagram) involving heavy enough particles contain branch cuts on the physical sheet - anomalous thresholds - which, unlike normal thresholds and bound-state…

### Could the observation of X(5568) be a result of the near threshold rescattering effects?

- Physics, Mathematics
- 2016

We investigate the invariant mass distributions of $$B_s\pi $$Bsπ via different rescattering processes. The triangle singularity which appears in the rescattering amplitude may simulate the…

### Triangle singularity enhancing isospin violation in and decays

- Physics
- 2019

We investigate isospin violation in the and reactions, which proceed via a triangle mechanism. We show that the mechanism develops a singularity around the π 0 f 0 (980) or π 0 a0 (980) invariant…

### Exploring Possible Triangle Singularities in the Ξ b - → K - J / ψ Λ Decay

- PhysicsSymmetry
- 2020

It is suggested that although the whole strength is unknown, the contributions from the Ξ*-charmonium-Λ triangle diagram should be paid attention to if structures are observed in the J/ψΛ invariant mass spectrum experimentally.

### Internal particle width effects on the triangle singularity mechanism in the study of the η(1405) and η(1475) puzzle

- PhysicsPhysical Review D
- 2019

In this article, the analyticity of triangle loop integral with complex masses of internal particles is discussed in a new perspective, base on which we obtain the explicit width dependence of the…

### How to reveal the exotic nature of the P c (4450)

- Physics
- 2015

The LHCb Collaboration announced two pentaquark-like structures in the J/ψp invariant mass distribution. We show that the current information on the narrow structure at 4.45 GeV is compatible with…

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