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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2008, Volume 88, Issue 6, Pages 399–403
(Mi jetpl223)
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This article is cited in 25 scientific papers (total in 25 papers)
FIELDS, PARTICLES, AND NUCLEI
New narrow nucleon N$^*$(1685)
V. Kuznetsovab, M. V. Polyakovcd a Institute for Nuclear Research, Moscow, 117312, Russia
b Kyungpook National University, 702-701, Daegu, Republic of Korea
c Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, 188300, Russia
d Institute für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
Abstract:
We argue that the existence of a new narrow ($\Gamma\leq25\,$MeV) nucleon resonance N$^*$(1685) is strongly supported by recent data on $\eta$ photoproduction off the nucleon. The resonance has much stronger photo-coupling to the neutron than to the proton. This nucleon resonance is a good candidate for the non-strange member of the exotic anti-decouplet of baryons – the partner of the pentaquark $\Theta^+$. All known to the date properties of new N$^*$(1685) are summarized.
Received: 21.07.2008
Citation:
V. Kuznetsov, M. V. Polyakov, “New narrow nucleon N$^*$(1685)”, Pis'ma v Zh. Èksper. Teoret. Fiz., 88:6 (2008), 399–403; JETP Letters, 88:6 (2008), 347–350
Linking options:
https://www.mathnet.ru/eng/jetpl223 https://www.mathnet.ru/eng/jetpl/v88/i6/p399
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Abstract page: | 205 | Full-text PDF : | 89 | References: | 48 |
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