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DIGITAL.CSIC
Article . 2010 . Peer-reviewed
Data sources: DIGITAL.CSIC
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The European Physical Journal A
Article . 2009 . Peer-reviewed
License: Springer TDM
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https://dx.doi.org/10.48550/ar...
Article . 2009
License: arXiv Non-Exclusive Distribution
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Searching for signatures around 1920 MeV of a N* state of three hadron nature

Authors: Martinez-Torres, A.; Khemchandani, K.-P; Meissner, U.G.; Oset, E.;

Searching for signatures around 1920 MeV of a N* state of three hadron nature

Abstract

We provide a series of arguments which support the idea that the peak seen in the $γp \to K^+ Λ$ reaction around 1920 MeV should correspond to the recently predicted state of $J^P=1/2^+$ as a bound state of $K \bar{K}N$ with a mixture of $a_0(980)N$ and $f_0(980)N$ components. At the same time we propose polarization experiments in that reaction as a further test of the prediction, as well as a study of the total cross section for $γp \to K^+ K^- p$ at energies close to threshold and of $d σ/d M_{inv}$ for invariant masses close to the two kaon threshold.

published version

Countries
Germany, Spain
Keywords

polarization, Lambda: hadroproduction, nucleon resonance: (1920), Nuclear Theory, photon p --> p K+ K-, f0(980): intermediate state, ddc:530, K+: associated production, Física, FOS: Physical sciences, Nuclear Theory (nucl-th), interpretation of experiments, photon p --> Sigma0 K+, K: bound state, photon p: exclusive reaction, angular distribution, proposed experiment, info:eu-repo/classification/ddc/530, bound state: (nucleon K anti-K), total cross section, a0(980): intermediate state, photon p --> Lambda K+

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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