Zobrazeno 1 - 10
of 245
pro vyhledávání: '"R.H. Siemssen"'
Autor:
R. L. Varner, M.P. Kelly, P. Heckman, M. P. Carpenter, V. Nanal, R.H. Siemssen, J.P. Seitz, K. Eisenman, T. L. Khoo, Michael Thoennessen, David Jonathan Hofman, S. Mitsuoka, T. Pennington, I. Dioszegi, B. B. Back
Publikováno v:
Nuclear Physics A, 750(2-4), 245-255. ELSEVIER SCIENCE BV
The giant dipole resonance built on excited states was observed in very fissile nuclei in coincidence with evaporation residues. The reaction Ca-48 + Yb-176 populated evaporation residues of mass A = 213-220 with a cross section of similar to 200 mu
Autor:
I. Dioszegi, R. van Swol, B. B. Back, D. J. Henderson, Yoram Alhassid, A. M. Heinz, M.P. Kelly, P. Wilt, M. P. Carpenter, C. J. Lister, P. Heckman, R. L. Varner, K. Eisenman, R.H. Siemssen, V. Nanal, T. Lauritsen, J.P. Seitz, D. J. Hofman, B. Mcclintock, M. L. Halbert, F. G. Kondev, S. Mitsuoka, Michael Thoennessen, T. Pennington, T. L. Khoo, D. Jenkins
Publikováno v:
Nuclear Physics A. 731:153-159
Exclusive measurements of high energy γ-rays in the decay of 164 Er, formed in the reaction 40 Ar+ 124 Sn, have been performed to study angular momentum dependence of the giant dipole resonance (GDR) strength function. The γ-ray spectra were measur
Autor:
J. P. Schiffer, Michael Paul, D. J. Henderson, Gaurab Mukherjee, A. H. Wuosmaa, E. F. Moore, John P. Greene, R. E. Segel, R. C. Pardo, R. V. F. Janssens, C. L. Jiang, A. M. Heinz, T. Pennington, L. Jisonna, R.H. Siemssen, K. E. Rehm
Publikováno v:
Nuclear Physics A. 718:151-154
The 15 O(α,γ) 19 Ne reaction is an important pathway from the hot CNO cycle to the rp process that leads to the synthesis of heavier nuclei. At lower temperatures, the reaction rate is dominated by the transition to the 4.033 MeV 3/2 + state in 19
Autor:
Hans Wilschut, R.H. Siemssen
Publikováno v:
Acta Physica Polonica B Proceedings Supplement. 10:275
Autor:
Hans Wilschut, F. M. Marqués, L. Aphecetche, A. Kugler, R.S. Simon, Pierre Descouvemont, David D'Enterria, R.H. Siemssen, R. Holzmann, R. Turrisi, Robertus Timmermans, E. Wulf, J. G. Messchendorp, M. Hoefman, J. C. S. Bacelar, H. Huisman, Nasser Kalantar-Nayestanaki, R.W. Ostendorf, H. Delagrange, M. Volkerts, J. S. Díaz, S. Schadmand, van Marc-Jan Goethem, Wagner, German Martinez, H. R. Weller, Herbert Löhner, Yves Roland Schutz
Publikováno v:
Physical Review Letters. 85:1404-1407
Photons originating from coherent bremsstrahlung have been measured over a large dynamic range for the reaction of 200 MeV alpha particles with protons. At low photon energies the bremsstrahlung spectrum exhibits the classical behavior with an approx
Autor:
A. Schubert, V. Metag, Frederic Lefevre, J. S. Díaz, P.H. Vogt, German Martinez, R.W. Ostendorf, Yves Roland Schutz, R.H. Siemssen, Ralf Peter Averbeck, A. Kugler, Matthias Wolf, A. Marín, F. M. Marqués, S. Hlavac, P. Tlustý, J. Weiß, M. Appenheimer, R.S. Simon, R. W. Novotny, V. Wagner, H. W. Wilschut, Y. Charbonnier, A. Wolf, Gy. Wolf, Herbert Löhner, R. Holzmann, R. Pleskac, F. D. Berg, H. Ströher
Publikováno v:
Physics Letters B. 409:77-82
The impact-parameter dependence of π o - and η-meson production is reported for the system 40 Ar+ nat Ca at a beam energy of 800 A MeV. Scaling of the meson abundances with the transverse mass is observed. The experimental results are compared to c
Autor:
M.M. Aggarwal, A.L.S. Angelis, V. Antonenko, T.C. Awes, S.K. Badyal, C. Barlag, K.B. Bhalla, V.S. Bhatia, C. Blume, D. Bock, E.-M. Bohne, D. Bucher, A. Buijs, S. Chattopadhyay, A. Claussen, G. Clewing, A.C. Das, null Devanand, P. Dönni, E. Durieux, M.R. Dutta Majumdar, P. Foka, S. Fokin, M.S. Ganti, S. Garpman, F. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, H.-Å. Gustafsson, H.H. Gutbrod, M. Hartig, Xiaochun He, G. Hölker, M. Ippolitov, M. Izycki, S. Kachroo, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, B.W. Kolb, I. Langbein, J. Langheinrich, A. Lebedev, H. Löhner, S. Loknathan, V. Manko, M. Martin, I.S. Mittra, S. Mookerjee, H. Naef, S.K. Nayak, T.K. Nayak, S. Nikolaev, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, T. Peitzmann, F. Plasil, M. Purschke, S. Raniwala, N.K. Rao, L. Rosselet, B. Roters, J.M. Rubio, S. Saini, S. Sambyal, R. Santo, H.R. Schmidt, T. Siemiarczuk, R.H. Siemssen, B.C. Sinha, S. Slegt, K. Söderström, N. Solomey, S.P. Sorensen, G. Stefanek, P. Steinhaeuser, E. Stenlund, A. Ster, D. Stüken, M.D. Trivedi, C. Twenhoefel, N. Van Eijndhoven, W.H. Van Heeringen, A. Vinogradov, Y.P. Viyogi, S. Weber, G.R. Young
Publikováno v:
Physics Letters B, 403(3-4), 390-396. ELSEVIER SCIENCE BV
Scopus-Elsevier
Physics Letters. B, Vol. 403 (1997) pp. 390-396
Scopus-Elsevier
Physics Letters. B, Vol. 403 (1997) pp. 390-396
Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event pl
Autor:
J. S. Díaz, V. Wagner, P. Lautridou, W. Kühn, Frederic Lefevre, Miriam Marqués, A. Kugler, A. Schubert, S. Hlavac, H. W. Wilschut, R. Holzmann, R.S. Simon, Facundo Ballester, Yves Roland Schutz, R. Ostendorf, German Martinez, M. Notheisen, R.H. Siemssen, T. Matulewicz, R. W. Novotny, J.H.G. van Pol, W. Mittig, Ana Maria Marin, P. Roussel-Chomaz, Herbert Löhner, M. Franke
Publikováno v:
Physical Review Letters
Physical Review Letters, 1996, 76, pp.1425-. ⟨10.1103/PhysRevLett.76.1425⟩
Physical Review Letters, American Physical Society, 1996, 76, pp.1425-. ⟨10.1103/PhysRevLett.76.1425⟩
Physical Review Letters, 76(9), 1425-1428. AMER PHYSICAL SOC
Scopus-Elsevier
Physical Review Letters, 1996, 76, pp.1425-. ⟨10.1103/PhysRevLett.76.1425⟩
Physical Review Letters, American Physical Society, 1996, 76, pp.1425-. ⟨10.1103/PhysRevLett.76.1425⟩
Physical Review Letters, 76(9), 1425-1428. AMER PHYSICAL SOC
Scopus-Elsevier
Hard photons were measured in coincidence with projectilelike fragments in peripheral reactions of Ar-36 + Tb-159 at E/A = 44 MeV. The probability for hard photon production was found to scale linearly with the transferred mass and to depend on the d
Autor:
R.H. Siemssen
Publikováno v:
Nuclear Physics A. 588:c371-c377
Autor:
T. Kubo, Y. X. Watanabe, Isao Tanihata, Takashi Nakamura, Naohito Inabe, R.H. Siemssen, M. Ishihara, S. Shimoura, T. Kobayashi
Publikováno v:
Physics Letters B. 348:29-34
We have performed an exclusive measurement for the Coulomb dissociation reaction, Pb( 11 Li, 9 Li+2n) X at an incident energy of 43 A MeV. The deduced excitation energy spectrum of the 11Li nucleus shows a prominent peak at 1 MeV with a large tail to