Backward proton production in π+ and K+ collisions with Al and Au nuclei at 250 GeV/c

N. M. Agababyan; I. V. Ajinenko; M. R. Atayan; K. Belous; M. Charlet; P. V. Chliapnikov; E. A. De Wolf; K. Dziunikowska; A. M F Endler; Z. Sh Garutchava; H. R. Gulkanyan; R. Sh Hakobyan; J. K. Karamyan; D. Kisielewska; W. Kittel; S. S. Mehrabyan; Z. V. Metreveli; L. C S Oliveira; K. Olkiewicz; F. K. Rizatdinova; E. K. Shabalina; L. N. Smirnova; M. D. Tabidze; L. A. Tikhonova; A. G. Tomaradze; F. Verbeure; S. A. Zotkin

doi:10.1007/BF01556364

Backward proton production in π⁺ and K⁺ collisions with Al and Au nuclei at 250 GeV/c

N. M. Agababyan^*, I. V. Ajinenko, M. R. Atayan, K. Belous, M. Charlet, P. V. Chliapnikov, E. A. De Wolf, K. Dziunikowska, A. M F Endler, Z. Sh Garutchava, H. R. Gulkanyan, R. Sh Hakobyan, J. K. Karamyan, D. Kisielewska, W. Kittel, S. S. Mehrabyan, Z. V. Metreveli, L. C S Oliveira, K. Olkiewicz, F. K. RizatdinovaE. K. Shabalina, L. N. Smirnova, M. D. Tabidze, L. A. Tikhonova, A. G. Tomaradze, F. Verbeure, S. A. Zotkin

^*Corresponding author for this work

Physics and Astronomy

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Abstract

Backward proton production is studied in interactions of π⁺ and K⁺ mesons with Al and Au nuclei at 250 GeV/c. The proton momentum spectra are measured at different emission angles. From the two-proton correlations, it is found, that a significant part ((26±4)% for Al and (44±6)% for Au) of the backward proton production can be attributed to secondary pion absorption by a nucleon pair in the nuclear medium, {Mathematical expression} and {Mathematical expression}. It is found that the share of the secondary pion absorption can be fitted by a power dependence αA^β, with β=0.27±0.05. An upper limit of the cross section for the colour-charge-exchange mechanism of backward proton production is estimated.

Original language	English (US)
Pages (from-to)	385-391
Number of pages	7
Journal	Zeitschrift für Physik C Particles and Fields
Volume	66
Issue number	3
DOIs	https://doi.org/10.1007/BF01556364
State	Published - Sep 1995

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Agababyan, N. M., Ajinenko, I. V., Atayan, M. R., Belous, K., Charlet, M., Chliapnikov, P. V., De Wolf, E. A., Dziunikowska, K., Endler, A. M. F., Garutchava, Z. S., Gulkanyan, H. R., Hakobyan, R. S., Karamyan, J. K., Kisielewska, D., Kittel, W., Mehrabyan, S. S., Metreveli, Z. V., Oliveira, L. C. S., Olkiewicz, K., ... Zotkin, S. A. (1995). Backward proton production in π⁺ and K⁺ collisions with Al and Au nuclei at 250 GeV/c. Zeitschrift für Physik C Particles and Fields, 66(3), 385-391. https://doi.org/10.1007/BF01556364

@article{683120b799f649e2acbffc63f2db02c8,

title = "Backward proton production in π+ and K+ collisions with Al and Au nuclei at 250 GeV/c",

abstract = "Backward proton production is studied in interactions of π+ and K+ mesons with Al and Au nuclei at 250 GeV/c. The proton momentum spectra are measured at different emission angles. From the two-proton correlations, it is found, that a significant part ((26±4)% for Al and (44±6)% for Au) of the backward proton production can be attributed to secondary pion absorption by a nucleon pair in the nuclear medium, {Mathematical expression} and {Mathematical expression}. It is found that the share of the secondary pion absorption can be fitted by a power dependence αAβ, with β=0.27±0.05. An upper limit of the cross section for the colour-charge-exchange mechanism of backward proton production is estimated.",

author = "Agababyan, {N. M.} and Ajinenko, {I. V.} and Atayan, {M. R.} and K. Belous and M. Charlet and Chliapnikov, {P. V.} and {De Wolf}, {E. A.} and K. Dziunikowska and Endler, {A. M F} and Garutchava, {Z. Sh} and Gulkanyan, {H. R.} and Hakobyan, {R. Sh} and Karamyan, {J. K.} and D. Kisielewska and W. Kittel and Mehrabyan, {S. S.} and Metreveli, {Z. V.} and Oliveira, {L. C S} and K. Olkiewicz and Rizatdinova, {F. K.} and Shabalina, {E. K.} and Smirnova, {L. N.} and Tabidze, {M. D.} and Tikhonova, {L. A.} and Tomaradze, {A. G.} and F. Verbeure and Zotkin, {S. A.}",

year = "1995",

month = sep,

doi = "10.1007/BF01556364",

language = "English (US)",

volume = "66",

pages = "385--391",

journal = "Zeitschrift f{\"u}r Physik C Particles and Fields",

issn = "0170-9739",

publisher = "Springer Nature",

number = "3",

}

Agababyan, NM, Ajinenko, IV, Atayan, MR, Belous, K, Charlet, M, Chliapnikov, PV, De Wolf, EA, Dziunikowska, K, Endler, AMF, Garutchava, ZS, Gulkanyan, HR, Hakobyan, RS, Karamyan, JK, Kisielewska, D, Kittel, W, Mehrabyan, SS, Metreveli, ZV, Oliveira, LCS, Olkiewicz, K, Rizatdinova, FK, Shabalina, EK, Smirnova, LN, Tabidze, MD, Tikhonova, LA, Tomaradze, AG, Verbeure, F & Zotkin, SA 1995, 'Backward proton production in π⁺ and K⁺ collisions with Al and Au nuclei at 250 GeV/c', Zeitschrift für Physik C Particles and Fields, vol. 66, no. 3, pp. 385-391. https://doi.org/10.1007/BF01556364

TY - JOUR

T1 - Backward proton production in π+ and K+ collisions with Al and Au nuclei at 250 GeV/c

AU - Agababyan, N. M.

AU - Ajinenko, I. V.

AU - Atayan, M. R.

AU - Belous, K.

AU - Charlet, M.

AU - Chliapnikov, P. V.

AU - De Wolf, E. A.

AU - Dziunikowska, K.

AU - Endler, A. M F

AU - Garutchava, Z. Sh

AU - Gulkanyan, H. R.

AU - Hakobyan, R. Sh

AU - Karamyan, J. K.

AU - Kisielewska, D.

AU - Kittel, W.

AU - Mehrabyan, S. S.

AU - Metreveli, Z. V.

AU - Oliveira, L. C S

AU - Olkiewicz, K.

AU - Rizatdinova, F. K.

AU - Shabalina, E. K.

AU - Smirnova, L. N.

AU - Tabidze, M. D.

AU - Tikhonova, L. A.

AU - Tomaradze, A. G.

AU - Verbeure, F.

AU - Zotkin, S. A.

PY - 1995/9

Y1 - 1995/9

N2 - Backward proton production is studied in interactions of π+ and K+ mesons with Al and Au nuclei at 250 GeV/c. The proton momentum spectra are measured at different emission angles. From the two-proton correlations, it is found, that a significant part ((26±4)% for Al and (44±6)% for Au) of the backward proton production can be attributed to secondary pion absorption by a nucleon pair in the nuclear medium, {Mathematical expression} and {Mathematical expression}. It is found that the share of the secondary pion absorption can be fitted by a power dependence αAβ, with β=0.27±0.05. An upper limit of the cross section for the colour-charge-exchange mechanism of backward proton production is estimated.

AB - Backward proton production is studied in interactions of π+ and K+ mesons with Al and Au nuclei at 250 GeV/c. The proton momentum spectra are measured at different emission angles. From the two-proton correlations, it is found, that a significant part ((26±4)% for Al and (44±6)% for Au) of the backward proton production can be attributed to secondary pion absorption by a nucleon pair in the nuclear medium, {Mathematical expression} and {Mathematical expression}. It is found that the share of the secondary pion absorption can be fitted by a power dependence αAβ, with β=0.27±0.05. An upper limit of the cross section for the colour-charge-exchange mechanism of backward proton production is estimated.

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UR - http://www.scopus.com/inward/citedby.url?scp=0000989097&partnerID=8YFLogxK

U2 - 10.1007/BF01556364

DO - 10.1007/BF01556364

M3 - Article

AN - SCOPUS:0000989097

SN - 0170-9739

VL - 66

SP - 385

EP - 391

JO - Zeitschrift für Physik C Particles and Fields

JF - Zeitschrift für Physik C Particles and Fields

IS - 3

ER -

Backward proton production in π⁺ and K⁺ collisions with Al and Au nuclei at 250 GeV/c

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