| 1. |
- Accomando, E., et al.
(författare)
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Physics with e + e - linear colliders
- 1998
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Ingår i: Physics Reports. - 0370-1573. ; 299:1, s. 1-78
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Tidskriftsartikel (refereegranskat)abstract
- The physics potential of e + e - linear colliders is summarized in this report. These machines are planned to operate in the first phase at a center-of-mass energy of 500 GeV, before being scaled up to about 1 TeV. In the second phase of the operation, a final energy of about 2 TeV is expected. The machines will allow us to perform precision tests of the heavy particles in the Standard Model, the top quark and the electroweak bosons. They are ideal facilities for exploring the properties of Higgs particles, in particular in the intermediate mass range. New vector bosons and novel matter particles in extended gauge theories can be searched for and studied thoroughly. The machines provide unique opportunities for the discovery of particles in supersymmetric extensions of the Standard Model, the spectrum of Higgs particles, the supersymmetric partners of the electroweak gauge and Higgs bosons, and of the matter particles. High precision analyses of their properties and interactions will allow for extrapolations to energy scales close to the Planck scale where gravity becomes significant. In alternative scenarios, i.e. compositeness models, novel matter particles and interactions can be discovered and investigated in the energy range above the existing colliders up to the TeV scale. Whatever scenario is realized in Nature, the discovery potential of e + e - linear colliders and the high precision with which the properties of particles and their interactions can be analyzed, define an exciting physics program complementary to hadron machines.
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| 2. |
- Gadea, A., et al.
(författare)
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Spectroscopy at N=Z with EUROBALL III
- 1999
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Ingår i: AIP Conference Proceedings. - : AIP. - 1551-7616 .- 0094-243X. ; 495, s. 195-198
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Konferensbidrag (refereegranskat)abstract
- A complete study of the nuclear structure by means of gamma spectroscopy requires, in addition to the high resolution gamma measurement and accurate DCO's or angular distributions, the information concerning the Electric or Magnetic character of the transition. This information for transitions in nuclei far from stability valley is now reachable in the new generation of Ge-arrays based in composite detectors. EUROBALL III is a good example with the high polarization sensitivity of the 90 degrees ring of Clovers. The Polarization correlations PCO's measured in coincidence with the Cluster detectors permits to investigate transitions in weakly populated nuclei. In this contribution we present results on medium mass N=Z nuclei measured with EUROBALL III coupled with light particle ancillary detectors.
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| 3. |
- Aas, AJ, et al.
(författare)
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Enhanced and quenched B(E1) transition rates between parity doublet bands in Ra-227
- 1996
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 611:2-3, s. 281-314
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Tidskriftsartikel (refereegranskat)abstract
- The fast timing beta gamma gamma(t) method has been used to measure level lifetimes in the parity doublet bands in Ra-227 populated in the beta(-) decay of Fr-227. In particular, T-1/2 = 254(9) ps, 236(30) ps, less than or equal to 41 ps and 16(13) ps hav
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| 4. |
- Aas, AJ, et al.
(författare)
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Quenched E1 transition rates in Th-231
- 1999
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 654:3-4, s. 499-522
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Tidskriftsartikel (refereegranskat)abstract
- The fast timing beta gamma gamma(t) method has been used to measure lifetimes of the low-lying levels in Th-231 populated in the beta(-) decay of Ac-231. The half-life of the K-pi = 5/2(-) band-head at 185.7-keV was measured as T-1/2 = 1073(79) ps, yieldi
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| 5. |
- de, Angelis G, et al.
(författare)
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Band crossing phenomena in N = Z nuclei - A probe to T = 0 pairing correlations?
- 1997
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Ingår i: ACTA PHYSICA HUNGARICA NEW SERIES-HEAVY ION PHYSICS. - : AKADEMIAI KIADO. ; 6:1-4, s. 269-273
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The structure of the N = Z nuclei Zn-60, Ga-62, Ge-64 and Kr-72 has been investigated at GASP. Total Routhian surface (TRS) calculations have been performed for the N = 36, 38 and 40 Kr isotones. In the case of Kr-72 the four quasi-particle g(9/2) alignme
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| 6. |
- de, Angelis G, et al.
(författare)
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T=0 pairing correlations and band crossing phenomena in N=Z nuclei
- 1998
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. ; 630:1-2, s. 426C-433C
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The structure of the N=Z nuclei Zn-60, Ga-62, Ge-64 and Kr-72 has been investigated at GASP spectrometer through the S-32 + Ca-40 and Ca-40 + Ca-40 reactions at 140 and 160 MeV, respectively, using reaction channel selection with the ISIS Si-ball. The hig
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| 7. |
- Fraile, LM, et al.
(författare)
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Octupole correlations in Ra-229
- 1999
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 657:4, s. 355-390
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Tidskriftsartikel (refereegranskat)abstract
- The structure of Ra-229 has been studied in the beta(-) decay of Fr-229. Spins and parities have been determined from the conversion electron measurements, while half-lives for the 137.5, 142.7, 168.8, 213.0 and 479.0 keV levels have been measured in the
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| 8. |
- Gulda, K, et al.
(författare)
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Quadrupole deformed and octupole collective bands in Ra-228
- 1998
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 636:1, s. 28-46
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Tidskriftsartikel (refereegranskat)abstract
- Spins and parities for collective states in Ra-228 have been determined from conversion electron measurements with a mini-orange beta spectrometer. The fast-timing beta gamma gamma(t) method has been used to measure lifetimes of T-1/2 = 550(20) ps and 181
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| 9. |
- Hjelle, B, et al.
(författare)
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Rapid and specific detection of Sin Nombre virus antibodies in patients with hantavirus pulmonary syndrome by a strip immunoblot assay suitable for field diagnosis.
- 1997
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Ingår i: Journal of Clinical Microbiology. - 0095-1137 .- 1098-660X. ; 35:3, s. 600-8
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Tidskriftsartikel (refereegranskat)abstract
- To develop a rapid antibody test for Sin Nombre hantavirus (SNV) infection for diagnosis of hantavirus pulmonary syndrome (HPS) in field settings where advanced instrumentation is not available, a strip immunoblot assay bearing four immobilized antigens for SNV and a recombinant nucleocapsid protein antigen of Seoul hantavirus (SEOV) was prepared. The SNV antigens included a full-length recombinant-expressed nucleocapsid (N) protein (rN), a recombinant-expressed G1 protein (residues 35 to 117), and synthetic peptides derived from N (residues 17 to 59) and G1 (residues 55 to 88). On the basis of the observed reactivities of hantavirus-infected patient and control sera, we determined that a positive assay requires reactivity with SNV or SEOV rN antigen and at least one other antigen. Isolated reactivity to either viral rN antigen is indeterminate, and any pattern of reactivity that does not include reactivity to an rN antigen is considered indeterminate but is unlikely to represent hantavirus infection. Fifty-eight of 59 samples from patients with acute SNV-associated HPS were positive according to these criteria, and one was initially indeterminate. Four of four samples from patients with HPS due to other hantaviruses were positive, as were most samples from patients with SEOV and Puumala virus infections. Of 192 control serum samples, 2 (1%) were positive and 2 were indeterminate. Acute SNV infection was distinguishable from remote SNV infection or infection with hantaviruses other than SNV by the presence of G1 peptide antigen reactivities in the former. The strip immunoblot assay shows promise for the detection of SNV antibodies early in the course of HPS.
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| 10. |
- Kurcewicz, W, et al.
(författare)
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The nuclear structure of Fr-227
- 1997
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Ingår i: NUCLEAR PHYSICS A. - : ELSEVIER SCIENCE BV. - 0375-9474. ; 621:4, s. 827-852
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Tidskriftsartikel (refereegranskat)abstract
- The gamma-rays following the beta(-) decay of Rn-227 have been investigated by means of gamma-ray singles and gamma gamma-coincidence measurements using an array of 12 Compton-suppressed Ge detectors. The fast-timing beta gamma gamma(t) method has been us
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