Matching of a beam line and a spectrometer New beam line project at RCNP

Fujita, Y.; Hatanaka, K.; Berg, G.P.A.; Hosono, K.; Matsuoka, N.; Morinobu, S.; Noro, T.; Satō, Masayuki; Tamura, Koji; Ueno, H.

doi:10.1016/s0168-583x(96)01008-7

Cited by 86 publications

(58 citation statements)

References 4 publications

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“…Close to 0 • , the scattering angle Θ can be expressed by θ 2 + φ 2 , where θ and φ are the scattering angles in the horizontal and vertical directions, respectively. An angular resolution ∆Θ ≤ 5 mr [full width at half maximum (FWHM)] was achieved by applying the angular dispersion matching technique [30] and the overfocus mode of the spectrometer [31]. In the analysis, the acceptance of the spectrometer, covering θ of ±1 • and φ of ±2.5 • was subdivided into five angular ranges (cuts) using the tracking information.…”

Section: Methodsmentioning

confidence: 99%

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High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
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Section: Methodsmentioning

confidence: 99%

“…[20,21,32]. An energy resolution ∆E of 29 keV (FWHM), which is much better than the energy spread of ≈ 140 keV of the beam, was realized by applying the lateral dispersion matching and focus matching techniques [30,33].…”

Section: Methodsmentioning

confidence: 99%

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
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41
9
109
0
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“…By applying precise beam matching techniques [10] to a magnetic spectrometer system, an energy resolution of 30 keV or less is possible at 140 MeV/nucleon and 0…”

Section: Introductionmentioning

confidence: 99%

High-resolution study of Gamow-Teller transitions in the47Ti(3He,t)
Ganioğlu¹,
Fujita²,
Fujita³
et al. 2013
Phys. Rev. C
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Given the importance of Gamow-Teller (GT) transitions in nuclear structure and astrophysical nuclear processes, we have studied Tz = +3/2 → +1/2, GT transitions starting from the 47 Ti nucleus in the ( 3 He, t) charge-exchange reaction at 0• and at an intermediate incident energy of 140 MeV/nucleon. The experiments were carried out at the Research Center for Nuclear Physics (RCNP), Osaka using the high resolution facility consisting of a high-dispersion beam line and the Grand-Raiden spectrometer. With an energy resolution of 20 keV, individual GT transitions were observed and GT strength was derived for each state populated up to an excitation energy (Ex) of 12.5 MeV. The GT strength was widely distributed from low excitation energy up to 12.5 MeV, where we had to stop the analysis due to the high level density. The distribution of the GT strengths was compared with the results of shell model calculations using the GXPF1 interaction. The calculations could reproduce the experimental GT distributions well. The GT transitions from the ground state of 47 Ti and the M 1 transitions from the isobaric analog state in 47 V to the same low-lying states in 47 V are analogous. It was found that the ratios of GT transition strengths to the ground state, the 0.088 MeV, and the 0.146 MeV states are similar to the ratios of the strengths of the analogous M 1 transitions from the IAS to these states. The measured distribution of the GT strengths was also compared with those starting from the Tz = +3/2 nucleus 41 K to the Tz = +1/2 nucleus 41 Ca.

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“…7, which will be able to provide 2.8 × 10 8 + /spill at 1.2 GeV/c for 25-kW beam loss on a primary target. The HIHR beam line realizes a momentum dispersion of ~10 m at an experimental target and a high precision ( , + ) spectroscopy with a resolution as high as 0.1 MeV by using a dispersion matching technique [17].…”

Section: High Precision Hypernuclear Spectroscopymentioning

confidence: 99%

Physics in J-PARC Hadron-Hall Extension

Noumi¹

2017

Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016)

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The Hadron Experimental Facility (HEF) of the Japan Proton Accelerator Research Complex (J-PARC) provides the world highest intensity hadron beams, such as kaons, pions, and so on, for various experimental researches in particle and nuclear physics. Currently, HEF operates two charged and one neutral secondary beam lines, K1.8, K1.1, and KL, sharing secondary beams produced at a primary target, T1. In addition, a high-momentum beam line is being constructed, which is branched from the primary beam line to deliver a fraction of the primary proton beam. We have a plan to extend HEF and construct a several new beam lines, which would enhance physics opportunities at HEF. A floor plan of extended HEF and physics scopes are presented. KEYWORDS:Diquark, Exotic hadron, Hadron Spectroscopy, Chiral Symmetry, Hypernuclear Spectroscopy, Neutron Star, Baryon-baryon Interaction, Kaon Rare Decay, Hadron Beam OverviewIn the Hadron Experimental Facility (HEF) of the Japan Proton Accelerator Research Complex (J-PARC), we aim to investigate how matter in the universe has been developed from elementary particles.It is still difficult to describe hadrons directly from current quarks. This is due to non-perturbative nature of Quantum Chromo-Dynamics (QCD) below the energy scale of Λ QCD~2 00 MeV, where the quarks change themselves drastically. Therefore, effective degrees of freedom, such as constituent quarks, seem to work rather well to describe hadrons as building blocks. We could learn how QCD works in hadrons through spectroscopic studies of hadrons and/or changes of hadron properties in nuclear medium.It is a longstanding issue how nuclei are formed from hadrons. We have been constructing a precise baryon-baryon (BB) interaction model, which must be basic to describe nuclei. Furthermore, it is demonstrated by an ab-initio calculation that 3-body nuclear forces are necessary to reproduce nuclear binding energies. Multi-body inter-baryon interactions have yet to be established. They would play an essential role to describe the nuclear matter at higher density, such as in neutron star (NS) cores. It is naturally thought that hyperons are emerged in NS cores because chemical potential of neutrons becomes large beyond the mass difference between neutron and hyperon.

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Matching of a beam line and a spectrometer New beam line project at RCNP

Cited by 86 publications

References 4 publications

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
Self Cite
41
9
109
0
View full text Add to dashboard Cite

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
Self Cite
41
9
109
0
View full text Add to dashboard Cite

High-resolution study of Gamow-Teller transitions in the47Ti(3He,t)
Ganioğlu¹,
Fujita²,
Fujita³
et al. 2013
Phys. Rev. C
Self Cite

Physics in J-PARC Hadron-Hall Extension

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Matching of a beam line and a spectrometer New beam line project at RCNP

Cited by 86 publications

References 4 publications

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)Fujita1, Fujita2, Adachi3 et al. 2015Phys. Rev. CSelf Cite4191090View full textAdd to dashboardCite

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)Fujita1, Fujita2, Adachi3 et al. 2015Phys. Rev. CSelf Cite4191090View full textAdd to dashboardCite

High-resolution study of Gamow-Teller transitions in the47Ti(3He,t)Ganioğlu1, Fujita2, Fujita3 et al. 2013Phys. Rev. CSelf Cite

Physics in J-PARC Hadron-Hall Extension

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High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
Self Cite
41
9
109
0
View full text Add to dashboard Cite

High-resolution study of Gamow-Teller excitations in theCa42(He3,t)
Fujita¹,
Fujita²,
Adachi³
et al. 2015
Phys. Rev. C
Self Cite
41
9
109
0
View full text Add to dashboard Cite

High-resolution study of Gamow-Teller transitions in the47Ti(3He,t)
Ganioğlu¹,
Fujita²,
Fujita³
et al. 2013
Phys. Rev. C
Self Cite