# Recent Developments in Chiral Unitary Theory and Triangle Singularities Involving Baryons

Recent Developments in Chiral Unitary Theory and Triangle Singularities Involving Baryons We report on several reactions involving baryons that develop triangle singularities. The combination of elements of chiral unitary theory with the triangle mechanisms explain different features of reactions and shed light on some decay modes of several resonances. We address the role of a triangle singularity in the $$\pi N(1535)$$ π N ( 1535 ) contribution to $$\gamma p \rightarrow p \pi ^0 \eta$$ γ p → p π 0 η , another singularity, producing a peak in the $$\gamma p\rightarrow K^+ \varLambda (1405)$$ γ p → K + Λ ( 1405 ) reaction which was previously unexplained, the role of a singularity in the $$\pi \varDelta$$ π Δ decay of the N(1700), and also discuss the $$N^*(1875)$$ N ∗ ( 1875 ) resonance from this perspective. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Few-Body Systems Springer Journals

# Recent Developments in Chiral Unitary Theory and Triangle Singularities Involving Baryons

, Volume 59 (5) – May 29, 2018
12 pages

/lp/springer_journal/recent-developments-in-chiral-unitary-theory-and-triangle-hTff4vFIdN
Publisher
Springer Vienna
Subject
Physics; Particle and Nuclear Physics; Nuclear Physics, Heavy Ions, Hadrons; Atomic, Molecular, Optical and Plasma Physics
ISSN
0177-7963
eISSN
1432-5411
D.O.I.
10.1007/s00601-018-1407-6
Publisher site
See Article on Publisher Site

### Abstract

We report on several reactions involving baryons that develop triangle singularities. The combination of elements of chiral unitary theory with the triangle mechanisms explain different features of reactions and shed light on some decay modes of several resonances. We address the role of a triangle singularity in the $$\pi N(1535)$$ π N ( 1535 ) contribution to $$\gamma p \rightarrow p \pi ^0 \eta$$ γ p → p π 0 η , another singularity, producing a peak in the $$\gamma p\rightarrow K^+ \varLambda (1405)$$ γ p → K + Λ ( 1405 ) reaction which was previously unexplained, the role of a singularity in the $$\pi \varDelta$$ π Δ decay of the N(1700), and also discuss the $$N^*(1875)$$ N ∗ ( 1875 ) resonance from this perspective.

### Journal

Few-Body SystemsSpringer Journals

Published: May 29, 2018

## You’re reading a free preview. Subscribe to read the entire article.

### DeepDyve is your personal research library

It’s your single place to instantly
that matters to you.

over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month ### Explore the DeepDyve Library ### Search Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly ### Organize Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. ### Access Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. ### Your journals are on DeepDyve Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more. All the latest content is available, no embargo periods. DeepDyve ### Freelancer DeepDyve ### Pro Price FREE$49/month
\$360/year

Save searches from
PubMed

Create lists to

Export lists, citations