Measurements of the virtual bremsstrahlung in the p+p and p+d systems

JG Messchendorp; JCS Bacelar; MJ van Goethem; MN Harakeh; M Hoefman; H Huisman; N Kalantar-Nayestanaki; A Kugler; H Lohner; RW Ostendorf; S Schadmand; R Simon; M Volkerts; [No Value] Wagner; HW Wilschut

Measurements of the virtual bremsstrahlung in the p+p and p+d systems

JG Messchendorp^*, JCS Bacelar, MJ van Goethem, MN Harakeh, M Hoefman, H Huisman, N Kalantar-Nayestanaki, A Kugler, H Lohner, RW Ostendorf, S Schadmand, R Simon, M Volkerts, [No Value] Wagner, HW Wilschut

^*Bijbehorende auteur voor dit werk

Onderzoeksoutput › Academic › peer review

Samenvatting

Virtual bremsstrahlung yields measured in (p) over bar+p-->p+p+e(+)+e(-) and (p) over bar+d-->He-3+e(+)+e(-) are presented. The experiments were performed with a 190 MeV polarized proton beam obtained from the cyclotron AGOR at KVI in Groningen. Differential cross sections, response functions and analyzing powers were obtained for both reactions in exclusive measurements in which all outgoing particles were measured in a coincidence setup between SALAD and TAPS. The data are compared with gauge-invariant calculations using a NN T-matrix fitted to elastic phase-shifts. For pp-->ppe(+) e(-) a reasonable agreement is found for all measured virtual-photon invariant masses, M-gamma > 15 MeV/c(2) up to 80 MeV/c(2). For the pd-->He-3 e(+)e(-) angular distributions, the calculations underestimate the data for theta(CM) >100 degrees similar to what is found in the real-photon capture reaction.

Originele taal-2	English
Titel	FEW-BODY PROBLEMS IN PHYSICS '98
Redacteuren	B Desplanques, K Protasov, B SilvestreBrac, J Carbonell
Plaats van productie	VIENNA
Uitgeverij	Springer
Pagina's	355-358
Aantal pagina's	4
ISBN van geprinte versie	3-211-83280-7
Status	Published - 1999
Evenement	16th European Conference on Few-Body Problems in Physics - , France Duur: 1-jun.-1998 → 6-jun.-1998

Publicatie series

Naam	FEW-BODY SYSTEMS SUPPLEMENTUM
Uitgeverij	SPRINGER-VERLAG WIEN
Volume	10
ISSN van geprinte versie	0177-8811

Other

Other	16th European Conference on Few-Body Problems in Physics
Land/Regio	France
Periode	01/06/1998 → 06/06/1998

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Citeer dit

Messchendorp, JG., Bacelar, JCS., van Goethem, MJ., Harakeh, MN., Hoefman, M., Huisman, H., Kalantar-Nayestanaki, N., Kugler, A., Lohner, H., Ostendorf, RW., Schadmand, S., Simon, R., Volkerts, M., Wagner, N. V., & Wilschut, HW. (1999). Measurements of the virtual bremsstrahlung in the p+p and p+d systems. In B. Desplanques, K. Protasov, B. SilvestreBrac, & J. Carbonell (editors), FEW-BODY PROBLEMS IN PHYSICS '98 (blz. 355-358). (FEW-BODY SYSTEMS SUPPLEMENTUM; Vol. 10). Springer.

@inproceedings{479995a1e8ee47f9b89629f3e85b7711,

title = "Measurements of the virtual bremsstrahlung in the p+p and p+d systems",

abstract = "Virtual bremsstrahlung yields measured in (p) over bar+p-->p+p+e(+)+e(-) and (p) over bar+d-->He-3+e(+)+e(-) are presented. The experiments were performed with a 190 MeV polarized proton beam obtained from the cyclotron AGOR at KVI in Groningen. Differential cross sections, response functions and analyzing powers were obtained for both reactions in exclusive measurements in which all outgoing particles were measured in a coincidence setup between SALAD and TAPS. The data are compared with gauge-invariant calculations using a NN T-matrix fitted to elastic phase-shifts. For pp-->ppe(+) e(-) a reasonable agreement is found for all measured virtual-photon invariant masses, M-gamma > 15 MeV/c(2) up to 80 MeV/c(2). For the pd-->He-3 e(+)e(-) angular distributions, the calculations underestimate the data for theta(CM) >100 degrees similar to what is found in the real-photon capture reaction.",

author = "JG Messchendorp and JCS Bacelar and {van Goethem}, MJ and MN Harakeh and M Hoefman and H Huisman and N Kalantar-Nayestanaki and A Kugler and H Lohner and RW Ostendorf and S Schadmand and R Simon and M Volkerts and Wagner, {[No Value]} and HW Wilschut",

year = "1999",

language = "English",

isbn = "3-211-83280-7",

series = "FEW-BODY SYSTEMS SUPPLEMENTUM",

publisher = "Springer",

pages = "355--358",

editor = "B Desplanques and K Protasov and B SilvestreBrac and J Carbonell",

booktitle = "FEW-BODY PROBLEMS IN PHYSICS '98",

note = "16th European Conference on Few-Body Problems in Physics ; Conference date: 01-06-1998 Through 06-06-1998",

}

Messchendorp, JG, Bacelar, JCS, van Goethem, MJ , Harakeh, MN, Hoefman, M, Huisman, H, Kalantar-Nayestanaki, N, Kugler, A, Lohner, H, Ostendorf, RW, Schadmand, S, Simon, R, Volkerts, M, Wagner, NV & Wilschut, HW 1999, Measurements of the virtual bremsstrahlung in the p+p and p+d systems. in B Desplanques, K Protasov, B SilvestreBrac & J Carbonell (redactie), FEW-BODY PROBLEMS IN PHYSICS '98. FEW-BODY SYSTEMS SUPPLEMENTUM, vol. 10, Springer, VIENNA, blz. 355-358, 16th European Conference on Few-Body Problems in Physics, France, 01/06/1998.

TY - GEN

T1 - Measurements of the virtual bremsstrahlung in the p+p and p+d systems

AU - Messchendorp, JG

AU - Bacelar, JCS

AU - van Goethem, MJ

AU - Harakeh, MN

AU - Hoefman, M

AU - Huisman, H

AU - Kalantar-Nayestanaki, N

AU - Kugler, A

AU - Lohner, H

AU - Ostendorf, RW

AU - Schadmand, S

AU - Simon, R

AU - Volkerts, M

AU - Wagner, [No Value]

AU - Wilschut, HW

PY - 1999

Y1 - 1999

N2 - Virtual bremsstrahlung yields measured in (p) over bar+p-->p+p+e(+)+e(-) and (p) over bar+d-->He-3+e(+)+e(-) are presented. The experiments were performed with a 190 MeV polarized proton beam obtained from the cyclotron AGOR at KVI in Groningen. Differential cross sections, response functions and analyzing powers were obtained for both reactions in exclusive measurements in which all outgoing particles were measured in a coincidence setup between SALAD and TAPS. The data are compared with gauge-invariant calculations using a NN T-matrix fitted to elastic phase-shifts. For pp-->ppe(+) e(-) a reasonable agreement is found for all measured virtual-photon invariant masses, M-gamma > 15 MeV/c(2) up to 80 MeV/c(2). For the pd-->He-3 e(+)e(-) angular distributions, the calculations underestimate the data for theta(CM) >100 degrees similar to what is found in the real-photon capture reaction.

AB - Virtual bremsstrahlung yields measured in (p) over bar+p-->p+p+e(+)+e(-) and (p) over bar+d-->He-3+e(+)+e(-) are presented. The experiments were performed with a 190 MeV polarized proton beam obtained from the cyclotron AGOR at KVI in Groningen. Differential cross sections, response functions and analyzing powers were obtained for both reactions in exclusive measurements in which all outgoing particles were measured in a coincidence setup between SALAD and TAPS. The data are compared with gauge-invariant calculations using a NN T-matrix fitted to elastic phase-shifts. For pp-->ppe(+) e(-) a reasonable agreement is found for all measured virtual-photon invariant masses, M-gamma > 15 MeV/c(2) up to 80 MeV/c(2). For the pd-->He-3 e(+)e(-) angular distributions, the calculations underestimate the data for theta(CM) >100 degrees similar to what is found in the real-photon capture reaction.

M3 - Conference contribution

SN - 3-211-83280-7

T3 - FEW-BODY SYSTEMS SUPPLEMENTUM

SP - 355

EP - 358

BT - FEW-BODY PROBLEMS IN PHYSICS '98

A2 - Desplanques, B

A2 - Protasov, K

A2 - SilvestreBrac, B

A2 - Carbonell, J

PB - Springer

CY - VIENNA

T2 - 16th European Conference on Few-Body Problems in Physics

Y2 - 1 June 1998 through 6 June 1998

ER -