Observation of a cusp-like structure in the $\gamma p \rightarrow K^+\Sigma^0$ cross section at forward angles and low momentum transfer

A. Bella; A. Braghieri; A. Fantini; A. Gridnev; A. Lapik P. Levi Sandri; A. Polonskiy; A. Stugelev; A.V Sarantsev; B.-E. Reitz; D. Bayadilov

Observation of a cusp-like structure in the $\gamma p \rightarrow K^+\Sigma^0$ cross section at forward angles and low momentum transfer

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2006.12437 v2 pith:4YP6DKSZ submitted 2020-06-22 nucl-ex

T.C. Jude , S. Alef , P. Bauer , D. Bayadilov , R. Beck , A. Bella , J. Bieling , A. Braghieri

show 34 more authors

P.L. Cole D. Elsner R. Di Salvo A. Fantini O. Freyermuth F. Frommberger F. Ghio S. Goertz A. Gridnev D. Hammann J. Hannappel K. Kohl N. Kozlenko A. Lapik P. Levi Sandri V. Lisin G. Mandaglio F. Messi R. Messi D. Moricciani V. Nedorezov V.A Nikonov D. Novinskiy P. Pedroni A. Polonskiy B.-E. Reitz M. Romaniuk A.V Sarantsev G. Scheluchin H. Schmieden A. Stugelev V. Sumachev V. Vegna V. Tarakanov T. Zimmermann

This is my paper · ORCID

classification nucl-ex

keywords anglescentre-of-masscrossenergyforwardgammareactionrightarrow

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

abstract

The $\gamma p \rightarrow K^+\Sigma^0$ differential cross section at extremely forward angles was measured at the BGOOD experiment. A three-quarter drop in strength over a narrow range in energy and a strong dependence on the polar angle of the $K^+$ in the centre-of-mass of the reaction is observed at a centre-of-mass energy of 1900\,MeV. Residing close to multiple open and hidden strangeness thresholds, the structure appears consistent with meson-baryon threshold effects which may contribute to the reaction mechanism.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Hidden-Strangeness Tetraquarks in the Dynamical Diquark Model
hep-ph 2025-05 conditional novelty 6.0 of 10

The dynamical diquark model predicts specific hidden-strangeness tetraquark multiplets near 2-3 GeV, with a distinctive three-state S-wave fingerprint in the ssss sector and several observed resonances as candidate matches.

Pith tools