HERMES Collaboration
- K. Ackerstaff, A. Airapetian, H. Zohrabian
- PhysicsThe HERMES Experiment
- 2022
Cross section ratios for deep-inelastic scattering from 14 N and 3 He with respect to 2 H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in…
Complete electric dipole response and the neutron skin in 208Pb.
- A. Tamii, I. Poltoratska, J. Zenihiro
- PhysicsPhysical Review Letters
- 28 April 2011
The extracted E1 polarizability leads to a neutron skin thickness close to that of a neutron star, thereby constraining the symmetry energy and its density dependence relevant to the description of neutron stars.
Magnetic spectrometer Grand Raiden
- M. Fujiwara, H. Akimune, M. Yosoi
- Physics, Chemistry
- 11 February 1999
Resolving the discrepancy of 135 MeV pd elastic scattering cross sections and relativistic effects.
- K. Sekiguchi, H. Sakai, K. Yako
- PhysicsPhysical Review Letters
- 3 October 2005
Relativistic Faddeev calculations show that relativistic effects are restricted to backward angles, which supports the two measurements recently reported by RIKEN and contradicts the KVI data.
Further improvement of the upper limit on the direct 3α decay from the Hoyle state in 12C.
- M. Itoh, S. Ando, A. Uchiyama
- PhysicsPhysical Review Letters
- 2 September 2014
The upper limit of 0.2% is obtained on the direct 3α decay from the Hoyle state of 12C using the 12C(12C,3α)12C reaction at E12C=110 MeV.
Pygmy dipole resonance in 208Pb
- I. Poltoratska, P. Neumann-Cosel, N. Chiba
- Physics
- 9 March 2012
Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208 Pb shows that, at very forward angles, J π…
Long-term performance evaluation of positron emission tomography: analysis and proposal of a maintenance protocol for long-term utilization
- S. Watanuki, M. Tashiro, K. Ishii
- MedicineAnnals of Nuclear Medicine
- 20 April 2010
The sensitivity of the PET scanner generally deteriorated due to aging, and this change was thought to be caused by the reduction of photomultiplier tube (PMT) gain, although the changes in PMT gain can cause various types of performance deterioration, as investigated in this study.
Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
- T. Aoki, Y. Yamanaka, M. Takeuchi, Y. Sakemi, Y. Torii
- Physics
- 26 February 2013
We demonstrate the simultaneous magneto-optical trapping (MOT) of Rb and Sr and examine the characteristic loss of Rb in the MOT due to photoionization by the cooling laser for Sr. The…
Spectroscopy of 24Al and extraction of Gamow-Teller strengths with the 24Mg(3He,t) reaction at 420 MeV
- R. Zegers, R. Meharchand, M. Yosoi
- Physics
- 27 March 2008
The {sup 24}Mg({sup 3}He,t){sup 24}Al reaction was studied at E({sup 3}He)=420 MeV. An energy resolution of 35 keV was achieved. Gamow-Teller strengths to discrete levels in {sup 24}Al were extracted…
Evidence for quark-hadron duality in the proton spin asymmetry A1.
- A. Airapetian, N. Akopov, H. Zohrabian
- PhysicsPhysical Review Letters
- 10 September 2002
The average double-spin asymmetry in the nucleon resonance region is found to agree with that measured in deep-inelastic scattering at the same values of the Bjorken scaling variable x.
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