Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy

WASA-At-COSY Collaboration; P. Adlarson; W. Augustyniak; W. Bardan; M. Bashkanov; F. S. Bergmann; M. Berlowski; H. Bhatt; M. Buescher; H. Calen; I. Ciepal; H. Clement; D. Coderre; E. Czerwinski; K. Demmich; E. Doroshkevich; R. Engels; A. Erven; W. Erven; W. Eyrich; P. Fedorets; K. Foehl; K. Fransson; F. Goldenbaum; P. Goslawski; A. Goswami; K. Grigoryev; C. -O. Gullstroem; F. Hauenstein; L. Heijkenskjoeld; V. Hejny; M. Hodana; B. Hoeistad; N. Huesken; A. Jany; B. R. Jany; L. Jarczyk; T. Johansson; B. Kamys; G. Kemmerling; F. A. Khan; A. Khoukaz; D. A. Kirillov; S. Kistryn; B. Klos; H. Kleines; M. Krapp; W. Krzemien; P. Kulessa; A. Kupsc; K. Lalwani

doi:10.1140/epja/i2014-14100-4

Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy

WASA-At-COSY Collaboration, P. Adlarson^*, W. Augustyniak, W. Bardan, M. Bashkanov, F. S. Bergmann, M. Berlowski, H. Bhatt, M. Buescher, H. Calen, I. Ciepal, H. Clement, D. Coderre, E. Czerwinski, K. Demmich, E. Doroshkevich, R. Engels, A. Erven, W. Erven, W. EyrichP. Fedorets, K. Foehl, K. Fransson, F. Goldenbaum, P. Goslawski, A. Goswami, K. Grigoryev, C. -O. Gullstroem, F. Hauenstein, L. Heijkenskjoeld, V. Hejny, M. Hodana, B. Hoeistad, N. Huesken, A. Jany, B. R. Jany, L. Jarczyk, T. Johansson, B. Kamys, G. Kemmerling, F. A. Khan, A. Khoukaz, D. A. Kirillov, S. Kistryn, B. Klos, H. Kleines, M. Krapp, W. Krzemien, P. Kulessa, A. Kupsc, K. Lalwani

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present new data for angular distributions and on the cross section ratio of the p+d -> He-3+eta reaction at excess energies of Q - 48.8MeV and Q - 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum Julich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval.

Original language	English
Article number	100
Number of pages	8
Journal	The European Physical Journal A (EPJ A)
Volume	50
Issue number	6
DOIs	https://doi.org/10.1140/epja/i2014-14100-4
Publication status	Published - 17 Jun 2014

Keywords

TENSOR ANALYZING POWER
INTERMEDIATE ENERGIES
NEAR-THRESHOLD
ETA

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10.1140/epja/i2014-14100-4

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WASA-At-COSY Collaboration, Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calen, H., Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., ... Lalwani, K. (2014). Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy. The European Physical Journal A (EPJ A), 50(6), [100]. https://doi.org/10.1140/epja/i2014-14100-4

@article{d36289e0ddc14d16a6f6f375b25c8202,

title = "Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy",

abstract = "We present new data for angular distributions and on the cross section ratio of the p+d -> He-3+eta reaction at excess energies of Q - 48.8MeV and Q - 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum Julich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval.",

keywords = "TENSOR ANALYZING POWER, INTERMEDIATE ENERGIES, NEAR-THRESHOLD, ETA",

author = "{WASA-At-COSY Collaboration} and P. Adlarson and W. Augustyniak and W. Bardan and M. Bashkanov and Bergmann, {F. S.} and M. Berlowski and H. Bhatt and M. Buescher and H. Calen and I. Ciepal and H. Clement and D. Coderre and E. Czerwinski and K. Demmich and E. Doroshkevich and R. Engels and A. Erven and W. Erven and W. Eyrich and P. Fedorets and K. Foehl and K. Fransson and F. Goldenbaum and P. Goslawski and A. Goswami and K. Grigoryev and Gullstroem, {C. -O.} and F. Hauenstein and L. Heijkenskjoeld and V. Hejny and M. Hodana and B. Hoeistad and N. Huesken and A. Jany and Jany, {B. R.} and L. Jarczyk and T. Johansson and B. Kamys and G. Kemmerling and Khan, {F. A.} and A. Khoukaz and Kirillov, {D. A.} and S. Kistryn and B. Klos and H. Kleines and M. Krapp and W. Krzemien and P. Kulessa and A. Kupsc and K. Lalwani",

year = "2014",

month = jun,

day = "17",

doi = "10.1140/epja/i2014-14100-4",

language = "English",

volume = "50",

journal = "The European Physical Journal A (EPJ A)",

issn = "1434-6001",

publisher = "Springer",

number = "6",

}

WASA-At-COSY Collaboration, Adlarson, P, Augustyniak, W, Bardan, W, Bashkanov, M, Bergmann, FS, Berlowski, M, Bhatt, H, Buescher, M, Calen, H, Ciepal, I, Clement, H, Coderre, D, Czerwinski, E, Demmich, K, Doroshkevich, E, Engels, R, Erven, A, Erven, W, Eyrich, W, Fedorets, P, Foehl, K, Fransson, K, Goldenbaum, F, Goslawski, P, Goswami, A, Grigoryev, K, Gullstroem, C-O, Hauenstein, F, Heijkenskjoeld, L, Hejny, V, Hodana, M, Hoeistad, B, Huesken, N, Jany, A, Jany, BR, Jarczyk, L, Johansson, T, Kamys, B, Kemmerling, G, Khan, FA, Khoukaz, A, Kirillov, DA, Kistryn, S, Klos, B, Kleines, H, Krapp, M, Krzemien, W, Kulessa, P, Kupsc, A & Lalwani, K 2014, 'Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy', The European Physical Journal A (EPJ A), vol. 50, no. 6, 100. https://doi.org/10.1140/epja/i2014-14100-4

TY - JOUR

T1 - Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy

AU - WASA-At-COSY Collaboration

AU - Adlarson, P.

AU - Augustyniak, W.

AU - Bardan, W.

AU - Bashkanov, M.

AU - Bergmann, F. S.

AU - Berlowski, M.

AU - Bhatt, H.

AU - Buescher, M.

AU - Calen, H.

AU - Ciepal, I.

AU - Clement, H.

AU - Coderre, D.

AU - Czerwinski, E.

AU - Demmich, K.

AU - Doroshkevich, E.

AU - Engels, R.

AU - Erven, A.

AU - Erven, W.

AU - Eyrich, W.

AU - Fedorets, P.

AU - Foehl, K.

AU - Fransson, K.

AU - Goldenbaum, F.

AU - Goslawski, P.

AU - Goswami, A.

AU - Grigoryev, K.

AU - Gullstroem, C. -O.

AU - Hauenstein, F.

AU - Heijkenskjoeld, L.

AU - Hejny, V.

AU - Hodana, M.

AU - Hoeistad, B.

AU - Huesken, N.

AU - Jany, A.

AU - Jany, B. R.

AU - Jarczyk, L.

AU - Johansson, T.

AU - Kamys, B.

AU - Kemmerling, G.

AU - Khan, F. A.

AU - Khoukaz, A.

AU - Kirillov, D. A.

AU - Kistryn, S.

AU - Klos, B.

AU - Kleines, H.

AU - Krapp, M.

AU - Krzemien, W.

AU - Kulessa, P.

AU - Kupsc, A.

AU - Lalwani, K.

PY - 2014/6/17

Y1 - 2014/6/17

N2 - We present new data for angular distributions and on the cross section ratio of the p+d -> He-3+eta reaction at excess energies of Q - 48.8MeV and Q - 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum Julich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval.

AB - We present new data for angular distributions and on the cross section ratio of the p+d -> He-3+eta reaction at excess energies of Q - 48.8MeV and Q - 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum Julich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval.

KW - TENSOR ANALYZING POWER

KW - INTERMEDIATE ENERGIES

KW - NEAR-THRESHOLD

KW - ETA

U2 - 10.1140/epja/i2014-14100-4

DO - 10.1140/epja/i2014-14100-4

M3 - Article

VL - 50

JO - The European Physical Journal A (EPJ A)

JF - The European Physical Journal A (EPJ A)

SN - 1434-6001

IS - 6

M1 - 100

ER -

Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy

Abstract

Keywords

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