Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect

F. Kren; M. Bashkanov; D. Bogoslawsky; H. Calen; H. Clement; L. Demiroers; C. Ekstrom; K. Fransson; J. Greiff; L. Gustafsson; B. Hoistad; G. Ivanov; M. Jacewicz; E. Jiganov; T. Johansson; O. Khakimova; S. Keleta; I. Koch; S. Kullander; A. Kupsc; P. Marciniewski; R. Meier; B. Morosov; C. Pauly; H. Petren; Y. Petukhov; A. Povtorejko; R. J. M. Y. Ruber; K. Schonning; W. Scobel; T. Skorodko; B. Shwartz; J. Stepaniak; P. Thorngren-Engblom; V. Tikhomirov; G. J. Wagner; M. Wolke; A. Yamamoto; J. Zabierowski; J. Zlomanczuk

doi:10.1016/j.physletb.2009.12.061

Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect

F. Kren, M. Bashkanov, D. Bogoslawsky, H. Calen, H. Clement^*, L. Demiroers, C. Ekstrom, K. Fransson, J. Greiff, L. Gustafsson, B. Hoistad, G. Ivanov, M. Jacewicz, E. Jiganov, T. Johansson, O. Khakimova, S. Keleta, I. Koch, S. Kullander, A. KupscP. Marciniewski, R. Meier, B. Morosov, C. Pauly, H. Petren, Y. Petukhov, A. Povtorejko, R. J. M. Y. Ruber, K. Schonning, W. Scobel, T. Skorodko, B. Shwartz, J. Stepaniak, P. Thorngren-Engblom, V. Tikhomirov, G. J. Wagner, M. Wolke, A. Yamamoto, J. Zabierowski, J. Zlomanczuk

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

Exclusive measurements of the reaction pp -> d pi(+)pi(0) have been carried out at T-p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi(+)pi(0) channel exhibits no enhancement at low invariant pi pi masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel Delta Delta excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel Delta Delta mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section. (C) 2010 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	110-113
Number of pages	4
Journal	Physics Letters B
Volume	684
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2009.12.061
Publication status	Published - 8 Feb 2010

Keywords

MESON PRODUCTION
CROSS-SECTIONS
COLLISIONS
ENHANCEMENT
RESONANCE
NUCLEON

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10.1016/j.physletb.2009.12.061

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Kren, F., Bashkanov, M., Bogoslawsky, D., Calen, H., Clement, H., Demiroers, L., Ekstrom, C., Fransson, K., Greiff, J., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kullander, S., ... Zlomanczuk, J. (2010). Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect. Physics Letters B, 684(2-3), 110-113. https://doi.org/10.1016/j.physletb.2009.12.061

Kren, F. ; Bashkanov, M. ; Bogoslawsky, D. ; Calen, H. ; Clement, H. ; Demiroers, L. ; Ekstrom, C. ; Fransson, K. ; Greiff, J. ; Gustafsson, L. ; Hoistad, B. ; Ivanov, G. ; Jacewicz, M. ; Jiganov, E. ; Johansson, T. ; Khakimova, O. ; Keleta, S. ; Koch, I. ; Kullander, S. ; Kupsc, A. ; Marciniewski, P. ; Meier, R. ; Morosov, B. ; Pauly, C. ; Petren, H. ; Petukhov, Y. ; Povtorejko, A. ; Ruber, R. J. M. Y. ; Schonning, K. ; Scobel, W. ; Skorodko, T. ; Shwartz, B. ; Stepaniak, J. ; Thorngren-Engblom, P. ; Tikhomirov, V. ; Wagner, G. J. ; Wolke, M. ; Yamamoto, A. ; Zabierowski, J. ; Zlomanczuk, J. / Exclusive measurements of pp -> d pi(+)pi(0) : Double-pionic fusion without ABC effect. In: Physics Letters B. 2010 ; Vol. 684, No. 2-3. pp. 110-113.

@article{3f5a44e5fbd74ac4986da8e069cf766d,

title = "Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect",

abstract = "Exclusive measurements of the reaction pp -> d pi(+)pi(0) have been carried out at T-p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi(+)pi(0) channel exhibits no enhancement at low invariant pi pi masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel Delta Delta excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel Delta Delta mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section. (C) 2010 Elsevier B.V. All rights reserved.",

keywords = "MESON PRODUCTION, CROSS-SECTIONS, COLLISIONS, ENHANCEMENT, RESONANCE, NUCLEON",

author = "F. Kren and M. Bashkanov and D. Bogoslawsky and H. Calen and H. Clement and L. Demiroers and C. Ekstrom and K. Fransson and J. Greiff and L. Gustafsson and B. Hoistad and G. Ivanov and M. Jacewicz and E. Jiganov and T. Johansson and O. Khakimova and S. Keleta and I. Koch and S. Kullander and A. Kupsc and P. Marciniewski and R. Meier and B. Morosov and C. Pauly and H. Petren and Y. Petukhov and A. Povtorejko and Ruber, {R. J. M. Y.} and K. Schonning and W. Scobel and T. Skorodko and B. Shwartz and J. Stepaniak and P. Thorngren-Engblom and V. Tikhomirov and Wagner, {G. J.} and M. Wolke and A. Yamamoto and J. Zabierowski and J. Zlomanczuk",

year = "2010",

month = feb,

day = "8",

doi = "10.1016/j.physletb.2009.12.061",

language = "English",

volume = "684",

pages = "110--113",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "2-3",

}

Kren, F, Bashkanov, M, Bogoslawsky, D, Calen, H, Clement, H, Demiroers, L, Ekstrom, C, Fransson, K, Greiff, J, Gustafsson, L, Hoistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Khakimova, O, Keleta, S, Koch, I, Kullander, S, Kupsc, A, Marciniewski, P, Meier, R, Morosov, B, Pauly, C, Petren, H, Petukhov, Y, Povtorejko, A, Ruber, RJMY, Schonning, K, Scobel, W, Skorodko, T, Shwartz, B, Stepaniak, J, Thorngren-Engblom, P, Tikhomirov, V, Wagner, GJ, Wolke, M, Yamamoto, A, Zabierowski, J & Zlomanczuk, J 2010, 'Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect', Physics Letters B, vol. 684, no. 2-3, pp. 110-113. https://doi.org/10.1016/j.physletb.2009.12.061

Exclusive measurements of pp -> d pi(+)pi(0) : Double-pionic fusion without ABC effect. / Kren, F.; Bashkanov, M.; Bogoslawsky, D.; Calen, H.; Clement, H.; Demiroers, L.; Ekstrom, C.; Fransson, K.; Greiff, J.; Gustafsson, L.; Hoistad, B.; Ivanov, G.; Jacewicz, M.; Jiganov, E.; Johansson, T.; Khakimova, O.; Keleta, S.; Koch, I.; Kullander, S.; Kupsc, A.; Marciniewski, P.; Meier, R.; Morosov, B.; Pauly, C.; Petren, H.; Petukhov, Y.; Povtorejko, A.; Ruber, R. J. M. Y.; Schonning, K.; Scobel, W.; Skorodko, T.; Shwartz, B.; Stepaniak, J.; Thorngren-Engblom, P.; Tikhomirov, V.; Wagner, G. J.; Wolke, M.; Yamamoto, A.; Zabierowski, J.; Zlomanczuk, J.

In: Physics Letters B, Vol. 684, No. 2-3, 08.02.2010, p. 110-113.

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

TY - JOUR

T1 - Exclusive measurements of pp -> d pi(+)pi(0)

T2 - Double-pionic fusion without ABC effect

AU - Kren, F.

AU - Bashkanov, M.

AU - Bogoslawsky, D.

AU - Calen, H.

AU - Clement, H.

AU - Demiroers, L.

AU - Ekstrom, C.

AU - Fransson, K.

AU - Greiff, J.

AU - Gustafsson, L.

AU - Hoistad, B.

AU - Ivanov, G.

AU - Jacewicz, M.

AU - Jiganov, E.

AU - Johansson, T.

AU - Khakimova, O.

AU - Keleta, S.

AU - Koch, I.

AU - Kullander, S.

AU - Kupsc, A.

AU - Marciniewski, P.

AU - Meier, R.

AU - Morosov, B.

AU - Pauly, C.

AU - Petren, H.

AU - Petukhov, Y.

AU - Povtorejko, A.

AU - Ruber, R. J. M. Y.

AU - Schonning, K.

AU - Scobel, W.

AU - Skorodko, T.

AU - Shwartz, B.

AU - Stepaniak, J.

AU - Thorngren-Engblom, P.

AU - Tikhomirov, V.

AU - Wagner, G. J.

AU - Wolke, M.

AU - Yamamoto, A.

AU - Zabierowski, J.

AU - Zlomanczuk, J.

PY - 2010/2/8

Y1 - 2010/2/8

N2 - Exclusive measurements of the reaction pp -> d pi(+)pi(0) have been carried out at T-p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi(+)pi(0) channel exhibits no enhancement at low invariant pi pi masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel Delta Delta excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel Delta Delta mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section. (C) 2010 Elsevier B.V. All rights reserved.

AB - Exclusive measurements of the reaction pp -> d pi(+)pi(0) have been carried out at T-p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi(+)pi(0) channel exhibits no enhancement at low invariant pi pi masses, i.e. no ABC effect. Therefore this most basic isovector double-pionic fusion reaction qualifies as an ideal test case for the conventional t-channel Delta Delta excitation process. Indeed, the obtained differential distributions reveal the conventional t-channel Delta Delta mechanism as the appropriate reaction process, which also accounts for the observed energy dependence of the total cross section. (C) 2010 Elsevier B.V. All rights reserved.

KW - MESON PRODUCTION

KW - CROSS-SECTIONS

KW - COLLISIONS

KW - ENHANCEMENT

KW - RESONANCE

KW - NUCLEON

U2 - 10.1016/j.physletb.2009.12.061

DO - 10.1016/j.physletb.2009.12.061

M3 - Article

VL - 684

SP - 110

EP - 113

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 2-3

ER -

Exclusive measurements of pp -> d pi(+)pi(0): Double-pionic fusion without ABC effect

Abstract

Keywords

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