Precise momentum determination of the external COSY proton beam near 1930 MeV/c

M. G. Betigeri; J. Bojowald; A. Budzanowski; A. Chatterjee; M. Drochner; J. Ernst; S. Förtsch; L. Freindl; D. Frekers; W. Garske; K. Grewer; A. Hamacher; M. Hawash; S. Igel; I. Ilieva; R. Jahn; L. Jarczyk; G. Kemmerling; K. Kilian; S. Kliczewski; W. Klimala; D. Kolev; T. Kutsarova; B. J. Lieb; G. Lippert; H. Machner; A. Magiera; R. Maier; H. Nann; H. S. Plendl; D. Protic; B. Razen; P. Von Rossen; B. Roy; R. Siudak; J. Smyrski; A. Strzalkowski; R. Tsenov; P. A. Zolnierczuk; K. Zwoll

doi:10.1016/S0168-9002(99)00014-5

Precise momentum determination of the external COSY proton beam near 1930 MeV/c

M. G. Betigeri, J. Bojowald, A. Budzanowski, A. Chatterjee, M. Drochner, J. Ernst, S. Förtsch, L. Freindl, D. Frekers, W. Garske, K. Grewer, A. Hamacher, M. Hawash, S. Igel, I. Ilieva, R. Jahn, L. Jarczyk, G. Kemmerling, K. Kilian, S. KliczewskiW. Klimala, D. Kolev, T. Kutsarova, B. J. Lieb, G. Lippert, H. Machner, A. Magiera, R. Maier, H. Nann, H. S. Plendl, D. Protic, B. Razen, P. Von Rossen, B. Roy, R. Siudak, J. Smyrski, A. Strzalkowski, R. Tsenov, P. A. Zolnierczuk, K. Zwoll

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6 Scopus citations

Abstract

We present a method to determine precisely the absolute momentum of the external proton beam from the Julich Cooler Synchrotron COSY near 1930 MeV/c. In the pp→dπ⁺ reaction at 1930.477 MeV/c incident beam momentum, the forward going pions (θ_c.m. = 0°) and the backward going deuterons (θ_c.m. = 180°) have the same laboratory momentum. Such coincident pion-deuteron events are detected in the focal plane of the magnetic spectrometer BIG KARL located at θ_lab = 0°. Using the nearly linear dependence of the difference between the measured pion and deuteron momenta as a function of the proton beam momentum, the absolute momentum of the external proton beam from COSY near 1930 MeV/c was determined with a precision of 5.2×10^-5.

Original language	English
Pages (from-to)	249-253
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	426
Issue number	2
DOIs	https://doi.org/10.1016/S0168-9002(99)00014-5
State	Published - May 1 1999
Externally published	Yes

Funding

We wish to thank the COSY accelerator team for their effort to provide a good beam for this experiment. One of the authors (HN) wants to thank the Institut für Kernphysik of the Forschungszentrum Jülich for the kind hospitality during his sabbatical stay. The work was supported by BMBF Germany (06 MS 568 I TP4), Internationales Büro des BMBF (X081.24 and 211.6), SCSR Poland (2P302 025 and 2P03B 88 08), NSF Bulgaria (414), NATO scientific affairs, and COSY Jülich.

Funders	Funder number
Internationales Büro des BMBF	X081.24, 211.6
SCSR	2P302 025, 2P03B 88 08
National Science Foundation	414
North Atlantic Treaty Organization
Bundesministerium für Bildung und Forschung

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Cite this

Betigeri, M. G., Bojowald, J., Budzanowski, A., Chatterjee, A., Drochner, M., Ernst, J., Förtsch, S., Freindl, L., Frekers, D., Garske, W., Grewer, K., Hamacher, A., Hawash, M., Igel, S., Ilieva, I., Jahn, R., Jarczyk, L., Kemmerling, G., Kilian, K., ... Zwoll, K. (1999). Precise momentum determination of the external COSY proton beam near 1930 MeV/c. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 426(2), 249-253. https://doi.org/10.1016/S0168-9002(99)00014-5

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title = "Precise momentum determination of the external COSY proton beam near 1930 MeV/c",

abstract = "We present a method to determine precisely the absolute momentum of the external proton beam from the Julich Cooler Synchrotron COSY near 1930 MeV/c. In the pp→dπ+ reaction at 1930.477 MeV/c incident beam momentum, the forward going pions (θc.m. = 0°) and the backward going deuterons (θc.m. = 180°) have the same laboratory momentum. Such coincident pion-deuteron events are detected in the focal plane of the magnetic spectrometer BIG KARL located at θlab = 0°. Using the nearly linear dependence of the difference between the measured pion and deuteron momenta as a function of the proton beam momentum, the absolute momentum of the external proton beam from COSY near 1930 MeV/c was determined with a precision of 5.2×10-5.",

author = "Betigeri, {M. G.} and J. Bojowald and A. Budzanowski and A. Chatterjee and M. Drochner and J. Ernst and S. F{\"o}rtsch and L. Freindl and D. Frekers and W. Garske and K. Grewer and A. Hamacher and M. Hawash and S. Igel and I. Ilieva and R. Jahn and L. Jarczyk and G. Kemmerling and K. Kilian and S. Kliczewski and W. Klimala and D. Kolev and T. Kutsarova and Lieb, {B. J.} and G. Lippert and H. Machner and A. Magiera and R. Maier and H. Nann and Plendl, {H. S.} and D. Protic and B. Razen and {Von Rossen}, P. and B. Roy and R. Siudak and J. Smyrski and A. Strzalkowski and R. Tsenov and Zolnierczuk, {P. A.} and K. Zwoll",

year = "1999",

month = may,

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doi = "10.1016/S0168-9002(99)00014-5",

language = "English",

volume = "426",

pages = "249--253",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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Betigeri, MG, Bojowald, J, Budzanowski, A, Chatterjee, A, Drochner, M, Ernst, J, Förtsch, S, Freindl, L, Frekers, D, Garske, W, Grewer, K, Hamacher, A, Hawash, M, Igel, S, Ilieva, I, Jahn, R, Jarczyk, L, Kemmerling, G, Kilian, K, Kliczewski, S, Klimala, W, Kolev, D, Kutsarova, T, Lieb, BJ, Lippert, G, Machner, H, Magiera, A, Maier, R, Nann, H, Plendl, HS, Protic, D, Razen, B, Von Rossen, P, Roy, B, Siudak, R, Smyrski, J, Strzalkowski, A, Tsenov, R, Zolnierczuk, PA & Zwoll, K 1999, 'Precise momentum determination of the external COSY proton beam near 1930 MeV/c', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 426, no. 2, pp. 249-253. https://doi.org/10.1016/S0168-9002(99)00014-5

Precise momentum determination of the external COSY proton beam near 1930 MeV/c. / Betigeri, M. G.; Bojowald, J.; Budzanowski, A. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 426, No. 2, 01.05.1999, p. 249-253.

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

TY - JOUR

T1 - Precise momentum determination of the external COSY proton beam near 1930 MeV/c

AU - Betigeri, M. G.

AU - Bojowald, J.

AU - Budzanowski, A.

AU - Chatterjee, A.

AU - Drochner, M.

AU - Ernst, J.

AU - Förtsch, S.

AU - Freindl, L.

AU - Frekers, D.

AU - Garske, W.

AU - Grewer, K.

AU - Hamacher, A.

AU - Hawash, M.

AU - Igel, S.

AU - Ilieva, I.

AU - Jahn, R.

AU - Jarczyk, L.

AU - Kemmerling, G.

AU - Kilian, K.

AU - Kliczewski, S.

AU - Klimala, W.

AU - Kolev, D.

AU - Kutsarova, T.

AU - Lieb, B. J.

AU - Lippert, G.

AU - Machner, H.

AU - Magiera, A.

AU - Maier, R.

AU - Nann, H.

AU - Plendl, H. S.

AU - Protic, D.

AU - Razen, B.

AU - Von Rossen, P.

AU - Roy, B.

AU - Siudak, R.

AU - Smyrski, J.

AU - Strzalkowski, A.

AU - Tsenov, R.

AU - Zolnierczuk, P. A.

AU - Zwoll, K.

PY - 1999/5/1

Y1 - 1999/5/1

N2 - We present a method to determine precisely the absolute momentum of the external proton beam from the Julich Cooler Synchrotron COSY near 1930 MeV/c. In the pp→dπ+ reaction at 1930.477 MeV/c incident beam momentum, the forward going pions (θc.m. = 0°) and the backward going deuterons (θc.m. = 180°) have the same laboratory momentum. Such coincident pion-deuteron events are detected in the focal plane of the magnetic spectrometer BIG KARL located at θlab = 0°. Using the nearly linear dependence of the difference between the measured pion and deuteron momenta as a function of the proton beam momentum, the absolute momentum of the external proton beam from COSY near 1930 MeV/c was determined with a precision of 5.2×10-5.

AB - We present a method to determine precisely the absolute momentum of the external proton beam from the Julich Cooler Synchrotron COSY near 1930 MeV/c. In the pp→dπ+ reaction at 1930.477 MeV/c incident beam momentum, the forward going pions (θc.m. = 0°) and the backward going deuterons (θc.m. = 180°) have the same laboratory momentum. Such coincident pion-deuteron events are detected in the focal plane of the magnetic spectrometer BIG KARL located at θlab = 0°. Using the nearly linear dependence of the difference between the measured pion and deuteron momenta as a function of the proton beam momentum, the absolute momentum of the external proton beam from COSY near 1930 MeV/c was determined with a precision of 5.2×10-5.

UR - http://www.scopus.com/inward/record.url?scp=0032639740&partnerID=8YFLogxK

U2 - 10.1016/S0168-9002(99)00014-5

DO - 10.1016/S0168-9002(99)00014-5

M3 - Article

AN - SCOPUS:0032639740

SN - 0168-9002

VL - 426

SP - 249

EP - 253

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 2

ER -

Precise momentum determination of the external COSY proton beam near 1930 MeV/c

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