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• W1885228666 abstract "The nucleon resonances are investigated within a dynamical coupled-channels model of $ensuremath{pi}N$ and $ensuremath{gamma}N$ reactions up to the invariant mass $W=2$ GeV. The meson-baryon ($MB$) channels included in the calculations are $MB=$ $ensuremath{pi}N$, $ensuremath{eta}N$, $Kensuremath{Lambda}$, $Kensuremath{Sigma}$, and $ensuremath{pi}ensuremath{pi}N$ that has $ensuremath{pi}ensuremath{Delta}$, $ensuremath{rho}N$, and $ensuremath{sigma}N$ resonant components. The meson-baryon amplitudes ${T}_{{M}^{ensuremath{'}}{B}^{ensuremath{'}},MB}(W)$ are calculated from solving a set of coupled-channels integral equations defined by an interaction Hamiltonian consisting of (a) meson-exchange interactions ${v}_{{M}^{ensuremath{'}}{B}^{ensuremath{'}},MB}$ derived from phenomenological Lagrangian and (b) vertex interactions ${N}^{*}ensuremath{rightarrow}MB$ for describing the transition of a bare excited nucleon state ${N}^{*}$ to a meson-baryon channel $MB$. The parameters of ${v}_{{M}^{ensuremath{'}}{B}^{ensuremath{'}},MB}$ are mainly constrained by the fit to the data of $ensuremath{pi}Nensuremath{rightarrow}ensuremath{pi}N$ in the low-energy region up to $W=1.4$ GeV. The bare masses of ${N}^{*}$ and the ${N}^{*}ensuremath{rightarrow}MB$ parameters are then determined in simultaneous fits to the data of $ensuremath{pi}Nensuremath{rightarrow}ensuremath{pi}N$ up to $W=2.3$ GeV and those of $ensuremath{pi}Nensuremath{rightarrow}ensuremath{eta}N,Kensuremath{Lambda},Kensuremath{Sigma}$ and $ensuremath{gamma}Nensuremath{rightarrow}ensuremath{pi}N,ensuremath{eta}N,Kensuremath{Lambda},Kensuremath{Sigma}$ up to $W=2.1$ GeV. The pole positions and residues of nucleon resonances are extracted by analytically continuing the meson-baryon amplitudes ${T}_{{M}^{ensuremath{'}}{B}^{ensuremath{'}},MB}(W)$ to the complex Riemann energy surface. From the extracted residues, we have determined the ${N}^{*}ensuremath{rightarrow}ensuremath{pi}N,ensuremath{gamma}N,ensuremath{eta}N,Kensuremath{Lambda},Kensuremath{Sigma}$ transition amplitudes at resonance poles. We compare the resonance pole positions from our analysis with those given by the Particle Data Group and the recent coupled-channels analyses by the Julich and Bonn-Gatchina groups. Four results agree well only for the first ${N}^{*}$ in each spin-parity-isospin $({J}^{P},I)$ channel. For higher mass states, the number of states and their resonance positions from four results do not agree well. We discuss the possible sources of the discrepancies and the need of additional data from new hadron facilities such as the Japan Proton Accelerator Research Complex." @default.
• W1885228666 created "2016-06-24" @default.
• W1885228666 creator A5029261529 @default.
• W1885228666 creator A5036412030 @default.
• W1885228666 creator A5038054806 @default.
• W1885228666 creator A5090949971 @default.
• W1885228666 date "2013-09-27" @default.
• W1885228666 modified "2023-10-04" @default.
• W1885228666 title "Nucleon resonances within a dynamical coupled-channels model of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi>π</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:math>and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi>γ</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:math>reactions" @default.
• W1885228666 cites W1494972152 @default.
• W1885228666 cites W1581228648 @default.
• W1885228666 cites W1595332575 @default.
• W1885228666 cites W1676847603 @default.
• W1885228666 cites W172515408 @default.
• W1885228666 cites W1828573800 @default.
• W1885228666 cites W1868675689 @default.
• W1885228666 cites W1966832093 @default.
• W1885228666 cites W1969841375 @default.
• W1885228666 cites W1976646690 @default.
• W1885228666 cites W1977653274 @default.
• W1885228666 cites W1978426591 @default.
• W1885228666 cites W1978482067 @default.
• W1885228666 cites W1978777985 @default.
• W1885228666 cites W1979910819 @default.
• W1885228666 cites W1980653826 @default.
• W1885228666 cites W1983402121 @default.
• W1885228666 cites W1983979047 @default.
• W1885228666 cites W1988490068 @default.
• W1885228666 cites W1991238826 @default.
• W1885228666 cites W1991243504 @default.
• W1885228666 cites W1992367420 @default.
• W1885228666 cites W1993629217 @default.
• W1885228666 cites W1994041127 @default.
• W1885228666 cites W1994736519 @default.
• W1885228666 cites W1994777783 @default.
• W1885228666 cites W1995729447 @default.
• W1885228666 cites W1998730198 @default.
• W1885228666 cites W2004250532 @default.
• W1885228666 cites W2004457306 @default.
• W1885228666 cites W2012105002 @default.
• W1885228666 cites W2012795777 @default.
• W1885228666 cites W2013226358 @default.
• W1885228666 cites W2013278080 @default.
• W1885228666 cites W2014818133 @default.
• W1885228666 cites W2031687974 @default.
• W1885228666 cites W2031836364 @default.
• W1885228666 cites W2032498689 @default.
• W1885228666 cites W2042155940 @default.
• W1885228666 cites W2042468916 @default.
• W1885228666 cites W2043345049 @default.
• W1885228666 cites W2049723384 @default.
• W1885228666 cites W2056489117 @default.
• W1885228666 cites W2063624963 @default.
• W1885228666 cites W2075226619 @default.
• W1885228666 cites W2077663523 @default.
• W1885228666 cites W2078387954 @default.
• W1885228666 cites W2082177262 @default.
• W1885228666 cites W2082290533 @default.
• W1885228666 cites W2092060465 @default.
• W1885228666 cites W2092427951 @default.
• W1885228666 cites W2093524076 @default.
• W1885228666 cites W2096575963 @default.
• W1885228666 cites W2096769873 @default.
• W1885228666 cites W2098369399 @default.
• W1885228666 cites W2102665606 @default.
• W1885228666 cites W2112189405 @default.
• W1885228666 cites W2113506658 @default.
• W1885228666 cites W2146160636 @default.
• W1885228666 cites W2154703994 @default.
• W1885228666 cites W2157373896 @default.
• W1885228666 cites W2158028828 @default.
• W1885228666 cites W2162737450 @default.
• W1885228666 cites W2167118792 @default.
• W1885228666 cites W2169401916 @default.
• W1885228666 cites W2212530527 @default.
• W1885228666 cites W2231349387 @default.
• W1885228666 cites W2245929990 @default.
• W1885228666 cites W2259842617 @default.
• W1885228666 cites W2306094276 @default.
• W1885228666 cites W2320665031 @default.
• W1885228666 cites W2324119914 @default.
• W1885228666 cites W2325707592 @default.
• W1885228666 cites W2328821347 @default.
• W1885228666 cites W2615627309 @default.
• W1885228666 cites W2776907181 @default.
• W1885228666 cites W2897498687 @default.
• W1885228666 cites W3099887992 @default.
• W1885228666 cites W3100318842 @default.
• W1885228666 cites W3100965980 @default.
• W1885228666 cites W3101815347 @default.
• W1885228666 cites W3102180133 @default.
• W1885228666 cites W3103521280 @default.
• W1885228666 cites W3105156911 @default.
• W1885228666 cites W3105597958 @default.
• W1885228666 cites W3123315231 @default.
• W1885228666 cites W3124741829 @default.
• W1885228666 cites W3167907239 @default.
• W1885228666 cites W4253425290 @default.
• W1885228666 cites W2094663950 @default.
• W1885228666 doi "https://doi.org/10.1103/physrevc.88.035209" @default.

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