pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration

WASA-At-COSY Collaboration; P. Adlarson; C. Adolph; W. Augustyniak; M. Bashkanov; T. Bednarski; F. S. Bergmann; M. Berlowski; H. Bhatt; K. -T. Brinkmann; M. Buescher; H. Calen; H. Clement; D. Coderre; E. Czerwinski; E. Doroshkevich; R. Engels; W. Erven; W. Eyrich; P. Fedorets; K. Foehl; K. Fransson; F. Goldenbaum; P. Goslawski; K. Grigoryev; C. -O. Gullstrom; L. Heijkenskjold; J. Heimlich; V. Hejny; F. Hinterberger; M. Hodana; B. Hoistad; M. Jacewicz; M. Janusz; A. Jany; B. R. Jany; L. Jarczyk; T. Johansson; B. Kamys; G. Kemmerling; O. Khakimova; A. Khoukaz; S. Kistryn; J. Klaja; H. Kleines; B. Klos; F. Kren; W. Krzemien; P. Kulessa; A. Kupsc; K. Lalwani

doi:10.1016/j.physletb.2011.11.041

pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration

WASA-At-COSY Collaboration, P. Adlarson, C. Adolph, W. Augustyniak, M. Bashkanov, T. Bednarski, F. S. Bergmann, M. Berlowski, H. Bhatt, K. -T. Brinkmann, M. Buescher, H. Calen, H. Clement, D. Coderre, E. Czerwinski, E. Doroshkevich, R. Engels, W. Erven, W. Eyrich, P. FedoretsK. Foehl, K. Fransson, F. Goldenbaum, P. Goslawski, K. Grigoryev, C. -O. Gullstrom, L. Heijkenskjold, J. Heimlich, V. Hejny, F. Hinterberger, M. Hodana, B. Hoistad, M. Jacewicz, M. Janusz, A. Jany, B. R. Jany, L. Jarczyk, T. Johansson, B. Kamys, G. Kemmerling, O. Khakimova, A. Khoukaz, S. Kistryn, J. Klaja, H. Kleines, B. Klos, F. Kren, W. Krzemien, P. Kulessa, A. Kupsc, K. Lalwani

School of Physics and Astronomy

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

Abstract

The reaction pp -> pp pi(0)pi(0) has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +/- 21(systematic) +/- 58(normalization)) mu b. In order to study the production mechanism, differential kinematic distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is found. (C) 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	256-262
Number of pages	7
Journal	Physics Letters B
Volume	706
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2011.11.041
Publication status	Published - 5 Jan 2012

Keywords

2-PION PRODUCTION
ROPER RESONANCE
PION PRODUCTION
CROSS-SECTIONS
EXCITATION
MODEL
PP

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10.1016/j.physletb.2011.11.041

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WASA-At-COSY Collaboration, Adlarson, P., Adolph, C., Augustyniak, W., Bashkanov, M., Bednarski, T., Bergmann, F. S., Berlowski, M., Bhatt, H., Brinkmann, K. -T., Buescher, M., Calen, H., Clement, H., Coderre, D., Czerwinski, E., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., ... Lalwani, K. (2012). pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration. Physics Letters B, 706(4-5), 256-262. https://doi.org/10.1016/j.physletb.2011.11.041

WASA-At-COSY Collaboration ; Adlarson, P. ; Adolph, C. ; Augustyniak, W. ; Bashkanov, M. ; Bednarski, T. ; Bergmann, F. S. ; Berlowski, M. ; Bhatt, H. ; Brinkmann, K. -T. ; Buescher, M. ; Calen, H. ; Clement, H. ; Coderre, D. ; Czerwinski, E. ; Doroshkevich, E. ; Engels, R. ; Erven, W. ; Eyrich, W. ; Fedorets, P. ; Foehl, K. ; Fransson, K. ; Goldenbaum, F. ; Goslawski, P. ; Grigoryev, K. ; Gullstrom, C. -O. ; Heijkenskjold, L. ; Heimlich, J. ; Hejny, V. ; Hinterberger, F. ; Hodana, M. ; Hoistad, B. ; Jacewicz, M. ; Janusz, M. ; Jany, A. ; Jany, B. R. ; Jarczyk, L. ; Johansson, T. ; Kamys, B. ; Kemmerling, G. ; Khakimova, O. ; Khoukaz, A. ; Kistryn, S. ; Klaja, J. ; Kleines, H. ; Klos, B. ; Kren, F. ; Krzemien, W. ; Kulessa, P. ; Kupsc, A. ; Lalwani, K. / pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration. In: Physics Letters B. 2012 ; Vol. 706, No. 4-5. pp. 256-262.

@article{db0c3f261bd3492b872125f71164c73b,

title = "pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration",

abstract = "The reaction pp -> pp pi(0)pi(0) has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +/- 21(systematic) +/- 58(normalization)) mu b. In order to study the production mechanism, differential kinematic distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is found. (C) 2011 Elsevier B.V. All rights reserved.",

keywords = "2-PION PRODUCTION, ROPER RESONANCE, PION PRODUCTION, CROSS-SECTIONS, EXCITATION, MODEL, PP",

author = "{WASA-At-COSY Collaboration} and P. Adlarson and C. Adolph and W. Augustyniak and M. Bashkanov and T. Bednarski and Bergmann, {F. S.} and M. Berlowski and H. Bhatt and Brinkmann, {K. -T.} and M. Buescher and H. Calen and H. Clement and D. Coderre and E. Czerwinski and E. Doroshkevich and R. Engels and W. Erven and W. Eyrich and P. Fedorets and K. Foehl and K. Fransson and F. Goldenbaum and P. Goslawski and K. Grigoryev and Gullstrom, {C. -O.} and L. Heijkenskjold and J. Heimlich and V. Hejny and F. Hinterberger and M. Hodana and B. Hoistad and M. Jacewicz and M. Janusz and A. Jany and Jany, {B. R.} and L. Jarczyk and T. Johansson and B. Kamys and G. Kemmerling and O. Khakimova and A. Khoukaz and S. Kistryn and J. Klaja and H. Kleines and B. Klos and F. Kren and W. Krzemien and P. Kulessa and A. Kupsc and K. Lalwani",

year = "2012",

month = jan,

day = "5",

doi = "10.1016/j.physletb.2011.11.041",

language = "English",

volume = "706",

pages = "256--262",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4-5",

}

WASA-At-COSY Collaboration, Adlarson, P, Adolph, C, Augustyniak, W, Bashkanov, M, Bednarski, T, Bergmann, FS, Berlowski, M, Bhatt, H, Brinkmann, K-T, Buescher, M, Calen, H, Clement, H, Coderre, D, Czerwinski, E, Doroshkevich, E, Engels, R, Erven, W, Eyrich, W, Fedorets, P, Foehl, K, Fransson, K, Goldenbaum, F, Goslawski, P, Grigoryev, K, Gullstrom, C-O, Heijkenskjold, L, Heimlich, J, Hejny, V, Hinterberger, F, Hodana, M, Hoistad, B, Jacewicz, M, Janusz, M, Jany, A, Jany, BR, Jarczyk, L, Johansson, T, Kamys, B, Kemmerling, G, Khakimova, O, Khoukaz, A, Kistryn, S, Klaja, J, Kleines, H, Klos, B, Kren, F, Krzemien, W, Kulessa, P, Kupsc, A & Lalwani, K 2012, 'pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration', Physics Letters B, vol. 706, no. 4-5, pp. 256-262. https://doi.org/10.1016/j.physletb.2011.11.041

pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration. / WASA-At-COSY Collaboration; Adlarson, P.; Adolph, C.; Augustyniak, W.; Bashkanov, M.; Bednarski, T.; Bergmann, F. S.; Berlowski, M.; Bhatt, H.; Brinkmann, K. -T.; Buescher, M.; Calen, H.; Clement, H.; Coderre, D.; Czerwinski, E.; Doroshkevich, E.; Engels, R.; Erven, W.; Eyrich, W.; Fedorets, P.; Foehl, K.; Fransson, K.; Goldenbaum, F.; Goslawski, P.; Grigoryev, K.; Gullstrom, C. -O.; Heijkenskjold, L.; Heimlich, J.; Hejny, V.; Hinterberger, F.; Hodana, M.; Hoistad, B.; Jacewicz, M.; Janusz, M.; Jany, A.; Jany, B. R.; Jarczyk, L.; Johansson, T.; Kamys, B.; Kemmerling, G.; Khakimova, O.; Khoukaz, A.; Kistryn, S.; Klaja, J.; Kleines, H.; Klos, B.; Kren, F.; Krzemien, W.; Kulessa, P.; Kupsc, A.; Lalwani, K.

In: Physics Letters B, Vol. 706, No. 4-5, 05.01.2012, p. 256-262.

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

TY - JOUR

T1 - pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration

AU - WASA-At-COSY Collaboration

AU - Adlarson, P.

AU - Adolph, C.

AU - Augustyniak, W.

AU - Bashkanov, M.

AU - Bednarski, T.

AU - Bergmann, F. S.

AU - Berlowski, M.

AU - Bhatt, H.

AU - Brinkmann, K. -T.

AU - Buescher, M.

AU - Calen, H.

AU - Clement, H.

AU - Coderre, D.

AU - Czerwinski, E.

AU - Doroshkevich, E.

AU - Engels, R.

AU - Erven, W.

AU - Eyrich, W.

AU - Fedorets, P.

AU - Foehl, K.

AU - Fransson, K.

AU - Goldenbaum, F.

AU - Goslawski, P.

AU - Grigoryev, K.

AU - Gullstrom, C. -O.

AU - Heijkenskjold, L.

AU - Heimlich, J.

AU - Hejny, V.

AU - Hinterberger, F.

AU - Hodana, M.

AU - Hoistad, B.

AU - Jacewicz, M.

AU - Janusz, M.

AU - Jany, A.

AU - Jany, B. R.

AU - Jarczyk, L.

AU - Johansson, T.

AU - Kamys, B.

AU - Kemmerling, G.

AU - Khakimova, O.

AU - Khoukaz, A.

AU - Kistryn, S.

AU - Klaja, J.

AU - Kleines, H.

AU - Klos, B.

AU - Kren, F.

AU - Krzemien, W.

AU - Kulessa, P.

AU - Kupsc, A.

AU - Lalwani, K.

PY - 2012/1/5

Y1 - 2012/1/5

N2 - The reaction pp -> pp pi(0)pi(0) has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +/- 21(systematic) +/- 58(normalization)) mu b. In order to study the production mechanism, differential kinematic distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is found. (C) 2011 Elsevier B.V. All rights reserved.

AB - The reaction pp -> pp pi(0)pi(0) has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +/- 21(systematic) +/- 58(normalization)) mu b. In order to study the production mechanism, differential kinematic distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is found. (C) 2011 Elsevier B.V. All rights reserved.

KW - 2-PION PRODUCTION

KW - ROPER RESONANCE

KW - PION PRODUCTION

KW - CROSS-SECTIONS

KW - EXCITATION

KW - MODEL

KW - PP

U2 - 10.1016/j.physletb.2011.11.041

DO - 10.1016/j.physletb.2011.11.041

M3 - Article

VL - 706

SP - 256

EP - 262

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 4-5

ER -

pi(0)pi(0) Production in proton-proton collisions at T-p=1.4 GeV The WASA-at-COSY Collaboration

Abstract

Keywords

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