Observation of D(1285)→φγ radiative decay

Bityukov, S.I.; Borisov, G.; Dorofeev, V.; Dzhelyadin, R.; Golovkin, S.V.; Koubarovsky, V.P.; Kulyavtzev, A. I.; Константинов, А. С.; Kurshetzov, V. F.; Landsberg, L.G.; Lapin, V.; Mukhin, V.A.; Novozhilov, Yu. B.; Obraztsov, V.; Solyanik, V.I.; Viktorov, Vladimir; Zaǐtsev, A. M.

doi:10.1016/0370-2693(88)90562-x

Cited by 19 publications

(13 citation statements)

References 4 publications

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“…(8) and (9). This assumption has been supported [34] and attacked [35] on experimental grounds and remains uncertain [19]. On the theory side, a more elaborate mixing scheme with nonstrange and strange quark states and gluon states has suggested specific admixtures of the three isoscalar axial-vector mesons f 1 (1285), f 1 (1420), and f 1 (1510) [36].…”

Section: Estimates For Coupling Constantsmentioning

confidence: 99%

ΔI = 1 axial-vector mixing and charge symmetry breaking

1996

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Phenomenological Lagrangians that exhibit (broken) chiral symmetry as well as isospin violation suggest short-range charge symmetry breaking (CSB) nucleon-nucleon potentials with a σ 1 ·σ 2 structure. This structure could be realized by the mixing of axial-vector (1 + ) mesons in a single-meson exchange picture. The Coleman-Glashow scheme for ∆I z = 1 charge symmetry breaking applied to meson and baryon SU (2) mass splittings suggests a universal scale. This scale can be extended to ∆I = 1 nonstrange CSB transitions a • 1 |H em |f 1 of size −0.005 GeV 2 . The resulting nucleon-nucleon axial-vector meson exchange CSB potential then predicts ∆I = 1 effects which are small.

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Section: Estimates For Coupling Constantsmentioning

confidence: 99%

ΔI = 1 axial-vector mixing and charge symmetry breaking

1996

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“…Nonetheless, there are extra isoscalar states with quantum numbers and masses permitting that they can be interpreted as partners of the nonets of axial and tensor mesons. The axial state f 1 (1420), observed in two experiments [22], has been considered by some authors [23] as a possible candidate to exotic. On the other side, there are two candidate to exotic tensor states: f 2 (1640) [24] and f J (1710) [25].…”

Section: Introductionmentioning

confidence: 99%

SU(3) mixing for excited mesons

Carvalho

Castro

Antunes

2002

J. Phys. A: Math. Gen.

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“…Fitted values of free parameters with all 11 data points in Refs. [22][23][24][25][26]. close, it is difficult to interpret them as a physical structure.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The full (black), dashed (red), dotted (blue), short-dotted (violet), and dashed-dotted (green) lines are for the full model (Fit I), t channel, u channel, u channel with interpolated Reggeized treatment and s channel, respectively. The experimental data are from Refs [22][23][24][25][26]…”

mentioning

confidence: 99%

Investigation of pion-induced f1(1285) production off a nucleon target within an interpolating Reggeized approach

Wang¹,

He²

2017

Phys. Rev. D

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In this work, the pion-induced f 1 (1285) production off a nucleon target is investigated in an effective Lagrangian approach with an interpolating Reggeized treatment in a large range of the pion-beam momentum from threshold up to several tens of GeV. The s-channel, u-channel, and t-channel Born terms are included to calculate production cross sections. An interpolating Reggeized treatment is applied to the t channel, which is found to be important to reproduce the behavior of the existent experimental total cross sections at both low ( 8 GeV) and high pion-beam momenta ( 8 GeV). It is found that the t-channel contribution is dominant in the pion-induced f 1 (1285) production at low beam momentum and still dominant at very forward angles at high momentum. The interpolated Reggeized treatment of the u channel is also discussed. The u-channel contribution is small and negligible at low momentum, and it becomes dominant at backward angles at momenta higher than 10 GeV. The differential cross sections are predicted with the model fixed by the fitting existent experimental data. The results are helpful to the possible experiments at J-PARC and COMPASS.

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Observation of D(1285)→φγ radiative decay

Cited by 19 publications

References 4 publications

ΔI = 1 axial-vector mixing and charge symmetry breaking

ΔI = 1 axial-vector mixing and charge symmetry breaking

SU(3) mixing for excited mesons

Investigation of pion-induced f1(1285) production off a nucleon target within an interpolating Reggeized approach

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