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13 results on '"RUBER, RJMY"'

1. Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY

Author

ADOLPH, C, ANGELSTEIN, M, BASHKANOV, M, BECHSTEDT, U, BELOSTOTSKI, S, BERLOWSKI, M, BHATT, H, BISPLINGHOFF, J, BONDAR, A, BORASOY, B, BUSCHER, M, SCOBEL, W, SEFZICK, T, SERDYUK, V, SHAH, N, SIEMASZKO, M, SIUDAK, R, SKORODKO, T, SMOLINSKI, T, SMYRSKI, J, SOPOV, V, CALEN, H, SPOLGEN, D, STEPANIAK, J, STERZENBACH, G, STROHER, H, SZCZUREK, A, TEUFEL, A, TOLBA, T, TRZCINSKI, A, ULBRICH, K, VARMA, R, CHANDWANI, K, VLASOV, P, WEGLORZ, W, WINNEMOLLER, A, WIRZBA, A, WOLKE, M, WRONSKA, A, WUSTNER, R, XU, H, YAMAMOTO, A, YAMAOKA, H, CLEMENT, H, YUAN, X, YUREV, L, ZABIEROWSKI, J, ZHENG, C, ZIELINSKI, MJ, ZIPPER, W, ZLOMANCZUK, J, ZWOLL, K, ZYCHOR, I, CZERWINSKI, E, CZYZYKIEWICZ, R, D'ORSANEO, G, DUNIEC, D, EKSTROM, C, ENGELS, R, ERVEN, W, EYRICH, W, FEDORETS, P, FELDEN, O, FRANSSON, K, GIL, D, GOLDENBAUM, F, GRIGORYEV, K, HECZKO, A, HANHART, C, HEJNY, V, HINTERBERGER, F, HODANA, M, HOISTAD, B, IZOTOV, A, JACEWICZ, M, JANUSZ, M, JANY, BR, JARCZYK, L, JOHANSSON, T, KAMYS, B, KEMMERLING, G, KESHELASHVILI, I, KHAKIMOVA, O, KHOUKAZ, A, KILIAN, K, KIMURA, N, KISTRYN, S, KLAJA, J, KLAJA, P, KLEINES, H, KLOS, B, KOWALCZYK, A, KREN, F, KRZEMIEN, W, KULESSA, P, KULLANDER, S, KUPSC, A, KUZMIN, A, KYRYANCHUK, V, MAJEWSKI, J, MACHNER, H, MAGIERA, A, MAIER, R, MARCINIEWSKI, R, MIGDAL, W, MEISSNER, UG, MIKIRTYCHIANTS, M, MIKLUKHO, O, MILKE, N, MITTAG, M, MOSKAL, P, NANDI, BK, NAWROT, A, NISSLER, R, ODOYO, MA, OELERT, W, OHM, H, PAUL, N, PAULY, C, PETUKHOV, Y, PISKUNOV, N, PLUCINSKI, P, PODKOPAL, P, POVTOREYKO, A, PRASUHN, D, PRICKING, A, PYSZ, K, RACHOWSKI, J, RAUSMANN, T, REDMER, CF, RITMAN, J, ROY, A, RUBER, RJMY, RUDY, Z, SALMIN, R, SCHADMAND, S, SCHMIDT, A, SCHNEIDER, H, and SCHROEDER, W

Subjects
Current-Algebra, Performance, Dalitz plot, Nuclear Theory, hadronic decay [eta], 1.4 GeV, interaction [p p], final-state interaction [pi pi], Juelich COSY PS, +2p+eta%22">p p --> 2p eta, eta, Final-State Interactions, +3+pi%280%29%22">eta -> 3 pi(0), Chiral Perturbation-Theory, +3+Pi%280%29%22">Eta -> 3 Pi(0), Channels, 3-Pi%22">Eta->3-Pi, ddc:530, Nuclear Experiment, Daq System, hadroproduction [eta], Eta, Pi-Pi Scattering, Electromagnetic Corrections, slope [Dalitz plot], Dalitz Plot, High Energy Physics::Experiment, Decays, +3pi0%22">eta --> 3pi0
Abstract

In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4 GeV. The Dalitz plot of the three pions was studied using 1.2e5 fully reconstructed events, and the quadratic slope parameter alpha was determined to be -0.027+/-0.008(stat)+/-0.005(syst). The result is consistent with previous measurements and further corroborates the importance of pion-pion final state interactions., Comment: 6 pages, 4 figures, elsarticle

Published
2009
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2. Production of the omega meson in the pd -> He-3 omega reaction at 1450 MeV and 1360 MeV

Author

Schonning, K., Bargholtz, C., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demirors, L., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Khemchandani, Kanchan P., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Ruber, Rjmy, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. E., Engblom, P. T., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The production of omega mesons in the pd -> He-3 omega reaction has been studied at two energies near the kinematic threshold, T-p = 1450 MeV and T-p = 1360 MeV. The differential cross section was measured as a function of the omega c.m. angle at both energies over the whole angular range. Whereas the results at 1360 MeV are consistent with isotropy, strong rises are observed near both the forward and backward directions at 1450 MeV. Calculations made using a two-step model with an intermediate pion fail to reproduce the shapes of the measured angular distributions and also underestimate the total cross sections., We wish to thank the personnel at the The Svedberg Laboratory for their support during the course of the experiment. We are grateful to Y. le Bornec for providing us with information regarding Ref. [5] and also V. Shklyar for supplying the t-matrix element of the Giessen model described in Ref. [31]. This work was supported by the European Community under the “Structuring the Research Area” Specific Program Research Infrastructures Action (Hadron Physics, contract no. RII-cT-204-506078) by the Swedish Research Council, and BMBF (06TU201). K.P.K. wishes to thank the Fundacao para a Ciˆencia e a Tecnologia of the Minist´erio da Ciˆencia, Tecnologia e Ensino Superior of Portugal for financial support under Contract No. SFRH/BPD/40309/2007.

Published
2009

3. Exclusive Measurements of the pp -> pp pi+pi- Reaction Close to Threshold

Author

Brodowski, W, Bilger, R, Calén, H, Clement, H, Ekström, C, Fransson, K, Häggström, S, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Mörtsell, A, Oelert, W, Pätzold, J, Ruber, RJMY, Sch, Brodowski, W, Bilger, R, Calén, H, Clement, H, Ekström, C, Fransson, K, Häggström, S, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Mörtsell, A, Oelert, W, Pätzold, J, Ruber, RJMY, and Sch

Published
2001

4. Exclusive Measurements of the pp -> pppi+pi- Reaction

Author

Pätzold, J, Bilger, R, Brodowski, W, Calén, H, Clement, H, Ekström, C, Fransson, K, Häggström, S, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Mörtsell, A, Oelert, W, Ruber, RJMY, Sch, Pätzold, J, Bilger, R, Brodowski, W, Calén, H, Clement, H, Ekström, C, Fransson, K, Häggström, S, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Mörtsell, A, Oelert, W, Ruber, RJMY, and Sch

Published
2001

5. Spectator Tagging in Quasi-Free Reactions

Author

Bilger, R, Brodowski, W, Calén, H, Clement, H, Ekström, C, Fransson, K, Gustafsson, L, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Oelert, W, Pätzold, J, Ruber, RJMY, Shwartz, B, Step, Bilger, R, Brodowski, W, Calén, H, Clement, H, Ekström, C, Fransson, K, Gustafsson, L, Höistad, B, Johanson, J, Johansson, A, Johansson, T, Kilian, K, Kullander, S, Kupsc, A, Marciniewski, P, Morosov, B, Oelert, W, Pätzold, J, Ruber, RJMY, Shwartz, B, and Step

Published
2000

6. Exclusive measurement of pp -> pp pi(+)pi(-) at CELSIUS

Author

Brodowski, W, Bilger, R, Clement, H, Patzold, J, Wagner, GJ, Calen, H, Ekstrom, C, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, T, Kullander, S, Mortsell, A, Ruber, RJMY, Sundberg, P, Zlomanczuk, J, Kilian, K, Oelert, W, Brodowski, W, Bilger, R, Clement, H, Patzold, J, Wagner, GJ, Calen, H, Ekstrom, C, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, T, Kullander, S, Mortsell, A, Ruber, RJMY, Sundberg, P, Zlomanczuk, J, Kilian, K, and Oelert, W

Abstract

With the PROMICE/WASA detector setup at CELSIUS the reaction pp --> NN pi pi has been measured in the energy range from 650 to 775 MeV. These data constitute the first exclusive high-statistics measurements on a pure hydrogen target, supplying both differ, Addresses: Brodowski W, Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany. Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany. Svedberg Lab, S-75121 Uppsala, Sweden. Univ Uppsala, Dept Radiat Sci, S-75121 Uppsala, Sweden. KFA Julich GmbH, Forschungszen

Published
2000

7. Pion production in dp -> dN pi reactions with deuteron projectiles - art. no. 064002

Author

Greiff, J, Koch, I, Scobel, W, Rohdjess, H, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, T, Khoukaz, A, Kullander, S, Ruber, RJMY, Zlomanczuk, J, Dunin, V, Morosov, B, Sukhanov, A, Zernov, A, Kupsc, A, Marciniewski, P, Greiff, J, Koch, I, Scobel, W, Rohdjess, H, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, T, Khoukaz, A, Kullander, S, Ruber, RJMY, Zlomanczuk, J, Dunin, V, Morosov, B, Sukhanov, A, Zernov, A, Kupsc, A, and Marciniewski, P

Abstract

Kinematically complete events have been studied for the reactions dp-->dp pi (0) and dp-->dn pi (+) at projectile energies between 437 and 559 MeV. The measurement covers a range of pion momenta eta =p(pi ,c.m.)(max)/m(pi)c from near the production thresh, Addresses: Greiff J, Uppsala Univ, Dept Radiat Sci, S-75121 Uppsala, Sweden. Uppsala Univ, Dept Radiat Sci, S-75121 Uppsala, Sweden. Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany. Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany. Joint

Published
2000

8. Threshold structure of the quasifree p+n -> d+eta reaction

Author

Calen, H, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, Tord, Khoukaz, A, Kullander, S, Ruber, RJMY, Zlomanczuk, J, Morosov, B, Povtorejko, A, Sukhanov, A, Zernov, A, Kupsc, A, Marciniewski, P, Stepaniak, J, Bilger, R, Calen, H, Dyring, J, Fransson, K, Gustafsson, L, Haggstrom, S, Hoistad, B, Johanson, J, Johansson, A, Johansson, Tord, Khoukaz, A, Kullander, S, Ruber, RJMY, Zlomanczuk, J, Morosov, B, Povtorejko, A, Sukhanov, A, Zernov, A, Kupsc, A, Marciniewski, P, Stepaniak, J, and Bilger, R

Abstract

The quasifree p + n --> d + eta reaction cross section has been measured at the threshold using 1295 MeV protons in the CELSIUS storage ring and an internal cluster-jet deuterium target. The kinematics is chosen such that the target proton can be assumed, Addresses: Calen H, Univ Uppsala, Dept Radiat Sci, Box 535, S-75121 Uppsala, Sweden. Univ Uppsala, Dept Radiat Sci, S-75121 Uppsala, Sweden. Joint Inst Nucl Res, Moscow 101000, Russia. Inst Nucl Studies, PL-00681 Warsaw, Poland. Univ Tubingen, Inst Phys

Published
1998

9. Upper limits for a narrow dibaryon in pp collisions at 200 and 310 MeV

Author

Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Bilger, R, Brodowski, W, Clement, H, Wagner, GJ, Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Bilger, R, Brodowski, W, Clement, H, and Wagner, GJ

Abstract

Dibaryons, forbidden by mass to decay into NN pi channel and by quantum numbers into NN channel, may still have escaped detection. In fact, recently an observation of a narrow dibaryon (D) with the mass close to 1920 MeV was reported in the process pp -->, Addresses: Calen H, Uppsala Univ, Dept Radiat Sci, S-75121 Uppsala, Sweden. Uppsala Univ, Dept Radiat Sci, S-75121 Uppsala, Sweden. Svedberg Lab, S-75121 Uppsala, Sweden. KFA Julich GmbH, Forschungszentrum, IKP, D-52425 Julich, Germany. Univ Tubingen, Ins

Published
1998

10. Measurement of the quasifree pn -> pn eta reaction

Author

Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, Tord, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Kilian, K, Oelert, W, Sefzick, T, Bilger, R, Brodowski, W, Clement, H, Wagner, G, Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, Tord, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Kilian, K, Oelert, W, Sefzick, T, Bilger, R, Brodowski, W, Clement, H, and Wagner, G

Abstract

The first measurement of the cross section of the quasifree pn-->pn eta reaction has been carried out at the CELSIUS storage ring using a deuterium internal cluster jet target. The energy dependence of the cross section is extracted using a fixed incident, Addresses: Calen H, Univ Uppsala, Dept Radiat Sci, Box 535, S-75121 Uppsala, Sweden. Univ Uppsala, Dept Radiat Sci, S-75121 Uppsala, Sweden. Svedberg Lab, S-75121 Uppsala, Sweden. KFA Julich GmbH, Forschungszentrum, IKP, D-52425 Julich, Germany. Univ Tubi

Published
1998

11. Measurement of the quasifree p+n->d+eta reaction near threshold

Author

Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Renken, V, Sefzick, T, Bondar, A, Kuzmin, A, Shwa, Calén, H, Dyring, J, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Renken, V, Sefzick, T, Bondar, A, Kuzmin, A, and Shwa

Abstract

The quasifree p + n --> d + eta reaction cross section has been measured in the near-threshold region using deuterium from an internal cluster-jet target and 1350 MeV protons in the CELSIUS storage ring of the The Svedberg Laboratory, Uppsala. The energy, Addresses: Calen H, UNIV UPPSALA, DEPT RADIAT SCI, BOX 535, S-75121 UPPSALA, SWEDEN. KFA JULICH GMBH, FORSCHUNGSZENTRUM, IKP, D-52425 JULICH, GERMANY. SVEDBERG LAB, S-75121 UPPSALA, SWEDEN. BUDKER INST NUCL PHYS, NOVOSIBIRSK 630090, RUSSIA. INST NUCL STUD

Published
1997

12. Detector setup for a storage ring with an internal target

Author

Calén, H, Carius, S, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Mohn, J, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Fridén, CJ, Reistad, D, Kilian, K, Oelert, W, Renken, V, Sefzi, Calén, H, Carius, S, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, T, Kullander, S, Mörtsell, A, Mohn, J, Ruber, RJMY, Schuberth, U, Zlomanczuk, J, Ekström, C, Fridén, CJ, Reistad, D, Kilian, K, Oelert, W, Renken, V, and Sefzi

Abstract

A detector setup for the cooler storage ring CELSIUS is described. The setup detects particles produced in interactions between the internal beam and a cluster-jet target. Particles emitted in the forward direction are measured by means of arrays of plast, Addresses: UNIV UPPSALA, DEPT RADIAT SCI, S-75121 UPPSALA, SWEDEN. SVEDBERG LAB, S-75121 UPPSALA, SWEDEN. KFA JULICH GMBH, FORSCHUNGSZENTRUM, D-52425 JULICH, GERMANY. NOVOSIBIRSK NUCL PHYS INST, NOVOSIBIRSK 630090, RUSSIA. INST NUCL STUDIES, PL-00681 WARS

Published
1996

13. The pp->pp eta reaction near the kinematical threshold

Author

Calén, H, Carius, S, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, Tord, Kullander, S, Moehn, J, Mörtsell, A, Ruber, RJMY, Schuberth, U, ZLomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Waters, M, Bondar, A, Kuzmin, A, Shw, Calén, H, Carius, S, Fransson, K, Gustafsson, L, Häggström, S, Höistad, B, Johansson, A, Johansson, Tord, Kullander, S, Moehn, J, Mörtsell, A, Ruber, RJMY, Schuberth, U, ZLomanczuk, J, Ekström, C, Kilian, K, Oelert, W, Waters, M, Bondar, A, Kuzmin, A, and Shw

Published
1996

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