Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive
Impact factor

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Pis'ma v Zh. Èksper. Teoret. Fiz.:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 79, Issue 12, Pages 724–728 (Mi jetpl2321)  

This article is cited in 2 scientific papers (total in 2 papers)

FIELDS, PARTICLES, AND NUCLEI

$a^0_0(980)-f_0(980)$ Mixing and Spin Asymmetry in the $\pi^-p\to\eta\pi^0n$ Reaction

N. N. Achasov, G. N. Shestakov

Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
Full-text PDF (322 kB) Citations (2)
Abstract: The mass difference between the $K^+$ and $K^0$ mesons induces mixing of the $a^0_0(980)$ and $f_0(980)$ resonances. The mixing amplitude is large, on the order of $m_{K}(m^2_{K^0}-m^2_{K^+})^{1/2}\approx\sqrt\alpha\,m^2_K$ near the $K\bar K$ thresholds, and its phase changes sharply by 90$^\circ$. A high-energy experiment on the $\pi^-p\to\eta\pi^0n$ reaction in a polarized target is proposed. In this experiment, the presence of $a^0_0(980)-f_0(980)$ mixing can be unambiguously and simply identified by the presence of a large jump in the azimuthal asymmetry of the cross section for production of the $\eta\pi^0$ system in the $S$ wave near the $K\bar K$ thresholds. Our estimates of the magnitude of the polarization effect, which is expected to be observed in the experiment, are almost model-independent.
Received: 05.05.2004
English version:
Journal of Experimental and Theoretical Physics Letters, 2004, Volume 79, Issue 12, Pages 588–592
DOI: https://doi.org/10.1134/1.1790012
Bibliographic databases:
Document Type: Article
PACS: 13.75.Gx, 13.88.+e, 14.40.Cs
Language: Russian
Citation: N. N. Achasov, G. N. Shestakov, “$a^0_0(980)-f_0(980)$ Mixing and Spin Asymmetry in the $\pi^-p\to\eta\pi^0n$ Reaction”, Pis'ma v Zh. Èksper. Teoret. Fiz., 79:12 (2004), 724–728; JETP Letters, 79:12 (2004), 588–592
Citation in format AMSBIB
\Bibitem{AchShe04}
\by N.~N.~Achasov, G.~N.~Shestakov
\paper $a^0_0(980)-f_0(980)$ Mixing and Spin Asymmetry in the $\pi^-p\to\eta\pi^0n$ Reaction
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2004
\vol 79
\issue 12
\pages 724--728
\mathnet{http://mi.mathnet.ru/jetpl2321}
\adsnasa{https://adsabs.harvard.edu/cgi-bin/bib_query?2004JETPL..79..588A}
\transl
\jour JETP Letters
\yr 2004
\vol 79
\issue 12
\pages 588--592
\crossref{https://doi.org/10.1134/1.1790012}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-20444479488}
Linking options:
  • https://www.mathnet.ru/eng/jetpl2321
  • https://www.mathnet.ru/eng/jetpl/v79/i12/p724
  • This publication is cited in the following 2 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
    Statistics & downloads:
    Abstract page:145
    Full-text PDF :52
    References:1
     
      Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2024