On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV

R. Kotte; H. W. Barz; W. Neubert; C. Plettner; D. Wohlfarth; J. P. Alard; A. Andronic; R. Averbeck; Z. Basrak; N. Bastid; N. Bendarag; G. Berek; R. Čaplar; N. Cindro; P. Crochet; A. Devismes; P. Dupieux; M. Dželalija; M. Eskef; Z. Fodor; A. Gobbi; Y. Grishkin; N. Herrmann; K. D. Hildenbrand; B. Hong; J. Kecskemeti; Y. J. Kim; M. Kirejczyk; M. Korolija; M. Kowalczyk; T. Kress; R. Kutsche; A. Lebedev; K. S. Lee; Y. Leifels; V. Manko; H. Merlitz; D. Moisa; A. Nianine; D. Pelte; M. Petrovici; F. Rami; W. Reisdorf; B. De Schauenburg; D. Schüll; Z. Seres; B. Sikora; K. S. Sim; V. Simion; K. Siwek-Wilczyńska; A. Somov; G. Stoicea; M. A. Vasiliev; P. Wagner; K. Wiśniewski; J. T. Yang; Y. Yushmanov; A. Zhilin

doi:10.1007/s100500050333

On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV

R. Kotte, H. W. Barz, W. Neubert, C. Plettner, D. Wohlfarth, J. P. Alard, A. Andronic, R. Averbeck, Z. Basrak, N. Bastid, N. Bendarag, G. Berek, R. Čaplar, N. Cindro, P. Crochet, A. Devismes, P. Dupieux, M. Dželalija, M. Eskef, Z. FodorA. Gobbi, Y. Grishkin, N. Herrmann, K. D. Hildenbrand, B. Hong, J. Kecskemeti, Y. J. Kim, M. Kirejczyk, M. Korolija, M. Kowalczyk, T. Kress, R. Kutsche, A. Lebedev, K. S. Lee, Y. Leifels, V. Manko, H. Merlitz, D. Moisa, A. Nianine, D. Pelte, M. Petrovici, F. Rami, W. Reisdorf, B. De Schauenburg, D. Schüll, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, A. Somov, G. Stoicea, M. A. Vasiliev, P. Wagner, K. Wiśniewski, J. T. Yang, Y. Yushmanov, A. Zhilin

Department of Physics

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Abstract

Small-angle correlations of pairs of nonidentical light charged particles produced in central collisions of heavy ions in the A = 100 mass region at a beam energy of 400 A·MeV are investigated with the FOPI detector system at GSI Darmstadt. The difference of longitudinal correlation functions with the relative velocity parallel and anti-parallel to the center-of-mass velocity of the pair in the central source frame is studied. This method allows extracting the apparent space-time differences of the emission of the charged particles. Comparing the correlations with results of a final-state interaction model delivers quantitative estimates of these asymmetries. Time delays as short as 1 fm/c or - alternatively - source radius differences of a few tenth fm are resolved. The strong collective expansion of the participant zone introduces not only an apparent reduction of the source radius but also a modification of the emission times. After correcting for both effects a complete sequence of the space-time emission of p, d, t, ³He, α particles is presented for the first time.

Original language	English
Pages (from-to)	185-195
Number of pages	11
Journal	European Physical Journal A
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/s100500050333
Publication status	Published - 1999

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/s100500050333

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Kotte, R., Barz, H. W., Neubert, W., Plettner, C., Wohlfarth, D., Alard, J. P., Andronic, A., Averbeck, R., Basrak, Z., Bastid, N., Bendarag, N., Berek, G., Čaplar, R., Cindro, N., Crochet, P., Devismes, A., Dupieux, P., Dželalija, M., Eskef, M., ... Zhilin, A. (1999). On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV. European Physical Journal A, 6(2), 185-195. https://doi.org/10.1007/s100500050333

Kotte, R, Barz, HW, Neubert, W, Plettner, C, Wohlfarth, D, Alard, JP, Andronic, A, Averbeck, R, Basrak, Z, Bastid, N, Bendarag, N, Berek, G, Čaplar, R, Cindro, N, Crochet, P, Devismes, A, Dupieux, P, Dželalija, M, Eskef, M, Fodor, Z, Gobbi, A, Grishkin, Y, Herrmann, N, Hildenbrand, KD, Hong, B, Kecskemeti, J, Kim, YJ, Kirejczyk, M, Korolija, M, Kowalczyk, M, Kress, T, Kutsche, R, Lebedev, A, Lee, KS, Leifels, Y, Manko, V, Merlitz, H, Moisa, D, Nianine, A, Pelte, D, Petrovici, M, Rami, F, Reisdorf, W, De Schauenburg, B, Schüll, D, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Somov, A, Stoicea, G, Vasiliev, MA, Wagner, P, Wiśniewski, K, Yang, JT, Yushmanov, Y & Zhilin, A 1999, 'On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV', European Physical Journal A, vol. 6, no. 2, pp. 185-195. https://doi.org/10.1007/s100500050333

@article{bd6bdec4e1d04358879db23c0149b3f7,

title = "On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV",

abstract = "Small-angle correlations of pairs of nonidentical light charged particles produced in central collisions of heavy ions in the A = 100 mass region at a beam energy of 400 A·MeV are investigated with the FOPI detector system at GSI Darmstadt. The difference of longitudinal correlation functions with the relative velocity parallel and anti-parallel to the center-of-mass velocity of the pair in the central source frame is studied. This method allows extracting the apparent space-time differences of the emission of the charged particles. Comparing the correlations with results of a final-state interaction model delivers quantitative estimates of these asymmetries. Time delays as short as 1 fm/c or - alternatively - source radius differences of a few tenth fm are resolved. The strong collective expansion of the participant zone introduces not only an apparent reduction of the source radius but also a modification of the emission times. After correcting for both effects a complete sequence of the space-time emission of p, d, t, 3He, α particles is presented for the first time.",

author = "R. Kotte and Barz, {H. W.} and W. Neubert and C. Plettner and D. Wohlfarth and Alard, {J. P.} and A. Andronic and R. Averbeck and Z. Basrak and N. Bastid and N. Bendarag and G. Berek and R. {\v C}aplar and N. Cindro and P. Crochet and A. Devismes and P. Dupieux and M. D{\v z}elalija and M. Eskef and Z. Fodor and A. Gobbi and Y. Grishkin and N. Herrmann and Hildenbrand, {K. D.} and B. Hong and J. Kecskemeti and Kim, {Y. J.} and M. Kirejczyk and M. Korolija and M. Kowalczyk and T. Kress and R. Kutsche and A. Lebedev and Lee, {K. S.} and Y. Leifels and V. Manko and H. Merlitz and D. Moisa and A. Nianine and D. Pelte and M. Petrovici and F. Rami and W. Reisdorf and {De Schauenburg}, B. and D. Sch{\"u}ll and Z. Seres and B. Sikora and Sim, {K. S.} and V. Simion and K. Siwek-Wilczy{\'n}ska and A. Somov and G. Stoicea and Vasiliev, {M. A.} and P. Wagner and K. Wi{\'s}niewski and Yang, {J. T.} and Y. Yushmanov and A. Zhilin",

year = "1999",

doi = "10.1007/s100500050333",

language = "English",

volume = "6",

pages = "185--195",

journal = "European Physical Journal A",

issn = "1434-6001",

number = "2",

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TY - JOUR

T1 - On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV

AU - Kotte, R.

AU - Barz, H. W.

AU - Neubert, W.

AU - Plettner, C.

AU - Wohlfarth, D.

AU - Alard, J. P.

AU - Andronic, A.

AU - Averbeck, R.

AU - Basrak, Z.

AU - Bastid, N.

AU - Bendarag, N.

AU - Berek, G.

AU - Čaplar, R.

AU - Cindro, N.

AU - Crochet, P.

AU - Devismes, A.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Eskef, M.

AU - Fodor, Z.

AU - Gobbi, A.

AU - Grishkin, Y.

AU - Herrmann, N.

AU - Hildenbrand, K. D.

AU - Hong, B.

AU - Kecskemeti, J.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Korolija, M.

AU - Kowalczyk, M.

AU - Kress, T.

AU - Kutsche, R.

AU - Lebedev, A.

AU - Lee, K. S.

AU - Leifels, Y.

AU - Manko, V.

AU - Merlitz, H.

AU - Moisa, D.

AU - Nianine, A.

AU - Pelte, D.

AU - Petrovici, M.

AU - Rami, F.

AU - Reisdorf, W.

AU - De Schauenburg, B.

AU - Schüll, D.

AU - Seres, Z.

AU - Sikora, B.

AU - Sim, K. S.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Somov, A.

AU - Stoicea, G.

AU - Vasiliev, M. A.

AU - Wagner, P.

AU - Wiśniewski, K.

AU - Yang, J. T.

AU - Yushmanov, Y.

AU - Zhilin, A.

PY - 1999

Y1 - 1999

N2 - Small-angle correlations of pairs of nonidentical light charged particles produced in central collisions of heavy ions in the A = 100 mass region at a beam energy of 400 A·MeV are investigated with the FOPI detector system at GSI Darmstadt. The difference of longitudinal correlation functions with the relative velocity parallel and anti-parallel to the center-of-mass velocity of the pair in the central source frame is studied. This method allows extracting the apparent space-time differences of the emission of the charged particles. Comparing the correlations with results of a final-state interaction model delivers quantitative estimates of these asymmetries. Time delays as short as 1 fm/c or - alternatively - source radius differences of a few tenth fm are resolved. The strong collective expansion of the participant zone introduces not only an apparent reduction of the source radius but also a modification of the emission times. After correcting for both effects a complete sequence of the space-time emission of p, d, t, 3He, α particles is presented for the first time.

AB - Small-angle correlations of pairs of nonidentical light charged particles produced in central collisions of heavy ions in the A = 100 mass region at a beam energy of 400 A·MeV are investigated with the FOPI detector system at GSI Darmstadt. The difference of longitudinal correlation functions with the relative velocity parallel and anti-parallel to the center-of-mass velocity of the pair in the central source frame is studied. This method allows extracting the apparent space-time differences of the emission of the charged particles. Comparing the correlations with results of a final-state interaction model delivers quantitative estimates of these asymmetries. Time delays as short as 1 fm/c or - alternatively - source radius differences of a few tenth fm are resolved. The strong collective expansion of the participant zone introduces not only an apparent reduction of the source radius but also a modification of the emission times. After correcting for both effects a complete sequence of the space-time emission of p, d, t, 3He, α particles is presented for the first time.

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U2 - 10.1007/s100500050333

DO - 10.1007/s100500050333

M3 - Article

AN - SCOPUS:0040038065

SN - 1434-6001

VL - 6

SP - 185

EP - 195

JO - European Physical Journal A

JF - European Physical Journal A

IS - 2

ER -

On the space-time difference of proton and composite particle emission in central heavy-ion reactions at 400 A · MeV

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