Performance of the neutron polarimeter NPOL3 for high resolution measurements

Wakasa, T.; Hagihara, Yoshihiro; Sasano, M.; Asaji, S.; Fujita, K.; Hatanaka, K.; Ishida, Takashi; Kawabata, T.; Kuboki, H.; Maeda, Y.; Noro, T.; Saito, Takeshi; Sakai, H.; Sakemi, Y.; Sekiguchi, K.; Shimizu, Yuki; Tamii, A.; Tameshige, Y.; Yako, K.

doi:10.1016/j.nima.2005.03.151

Cited by 29 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experiment was performed using the Neutron Time-Of-Flight (NTOF) facility [28] and the neutron detector/polarimeter NPOL3 [29] at the Research Center for Nuclear Physics (RCNP) at Osaka University. Detailed descriptions of the NTOF facility and the NPOL3 system can be found in Refs.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Detailed descriptions of the NTOF facility and the NPOL3 system can be found in Refs. [28,29,30,31,32,33,34,35]. Only the details relevant to the present experiment are described here.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…The NTOF facility [28], as illustrated in The NPOL3 system [29], illustrated in Fig. 2 A complete set of polarization observables, A y , P , and…”

Section: B Target and Ntof Facilitymentioning

confidence: 99%

See 2 more Smart Citations

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite

Differential cross sections and complete sets of polarization observables are presented for the Gamow-Teller 12 C( p, n) 12 N(g.s., 1 + ) reaction at a bombarding energy of 296 MeV with momentum transfers q of 0.1 to 2.2 fm −1 . The polarization transfer observables are used to deduce the spinlongitudinal cross section, ID q , and spin-transverse cross sections, ID p and ID n . The data are compared with calculations based on the distorted wave impulse approximation (DWIA) using shell-model wave functions. Significant differences between the experimental and theoretical results are observed for all three spin-dependent ID i at momentum transfers of q 0.5 fm −1 , suggesting the existence of nuclear correlations beyond the shell model. We also performed DWIA calculations employing random phase approximation (RPA) response functions and found that the observed discrepancy is partly resolved by the pionic and rho-mesonic correlation effects.

show abstract

Section: Experimental Methodsmentioning

confidence: 99%

“…Detailed descriptions of the NTOF facility and the NPOL3 system can be found in Refs. [28,29,30,31,32,33,34,35]. Only the details relevant to the present experiment are described here.…”

Section: Experimental Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite

show abstract

“…The data were obtained with a neutron time-of-flight (NTOF) system [12] and a neutron detector and polarimeter NPOL3 [13] at the Research Center for Nuclear Physics (RCNP), Osaka University. The experimental setup and procedure were similar to those reported previously [8,14,15].…”

Section: Experimental Methodsmentioning

confidence: 99%

Complete set of polarization transfer coefficients for the3He(p,n)reaction at 346 MeV and 0 degrees

et al. 2008

Self Cite

View full text Add to dashboard Cite

We report measurements of the cross-section and a complete set of polarization transfer coefficients for the 3 He(p, n) reaction at a bombarding energy T p = 346 MeV and a reaction angle θ lab = 0 • . The data are compared with the corresponding free nucleon-nucleon values on the basis of the predominance of quasi-elastic scattering processes. Significant discrepancies have been observed in the polarization transfer D LL (0 • ), which are presumably the result of the three-proton T = 3/2 resonance. The spin-parity of the resonance is estimated to be 1/2 − , and the distribution is consistent with previous results obtained for the same reaction at T p = 48.8 MeV.

show abstract

“…The NPOL3 system [10] has two main neutron detector planes, hodoscopes (HD1 and HD2). Each plane consists of 10-stacked one-dimensional position sensitive plastic scintillator (BC408) with a size of 100 × 10 × 5 cm 3 (see Fig.…”

Section: Neutron Polarization Measurementmentioning

confidence: 99%

Development of Neutron Polarization Measurement System for Studying NN interaction in Nuclear Medium

Yasuda

Wakasa

Dozono

et al. 2016

Int. J. Mod. Phys. Conf. Ser.

Self Cite

View full text Add to dashboard Cite

We have developed the neutron polarization measurement system to perform the first polarization-transfer measurement for the exclusive (p, np) reaction. For the neutron polarization measurement, we have reconstructed the neutron polarimeter NPOL3. The NPOL3 system has been calibrated by using the polarized neutron from the 2 H( p, n) reaction, and the resulting effective analyzing power is A y:eff = 0.127. For the exclusive measurement, the Large Acceptance Spectrometer (LAS) has been used for the recoil proton detection. The energy resolution of 6 MeV is achieved for separation energy, which is sufficient to separate the 1s and 1p orbits for light nuclei.

show abstract

Performance of the neutron polarimeter NPOL3 for high resolution measurements

Cited by 29 publications

References 24 publications

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite

Complete set of polarization transfer coefficients for the3He(p,n)reaction at 346 MeV and 0 degrees

Development of Neutron Polarization Measurement System for Studying NN interaction in Nuclear Medium

Contact Info

Product

Resources

About

Performance of the neutron polarimeter NPOL3 for high resolution measurements

Cited by 29 publications

References 24 publications

Polarization transfer measurements forC12(p→,nDozono1, Wakasa2, Ihara3 et al. 2009Phys. Rev. CSelf Cite5000View full textAdd to dashboardCite

Polarization transfer measurements forC12(p→,nDozono1, Wakasa2, Ihara3 et al. 2009Phys. Rev. CSelf Cite5000View full textAdd to dashboardCite

Complete set of polarization transfer coefficients for the3He(p,n)reaction at 346 MeV and 0 degrees

Development of Neutron Polarization Measurement System for Studying NN interaction in Nuclear Medium

Contact Info

Product

Resources

About

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite

Polarization transfer measurements forC12(p→,n
Dozono
¹
,
Wakasa
²
,
Ihara
³

et al. 2009
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite