Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]

K. N. Barish; S. Batsouli; S. J. Bennett; M. Bertaina; A. Chikanian; T. M. Cormier; P. Fachini; B. Fadem; S. Q. Feng; L. E. Finch; N. K. George; S. V. Greene; P. Haridas; J. C. Hill; A. S. Hirsch; R. Hoversten; H. Z. Huang; H. Jaradat; T. Lainis; J. G. Lajoie; Q. Li; L. S. Liu; H. Long; C. Maguire; R. D. Majka; T. E. Miller; M. G. Munhoz; J. L. Nagle; A. Petridis; I. A. Pless; N. T. Porile; C. A. Pruneau; M. S.Z. Rabin; J. D. Reid; A. Rose; J. Sandweiss; R. P. Scharenberg; A. J. Slaughter; A. Tai; G. Van Buren; F. K. Wohn; Z. Xu; E. Yamamoto

doi:10.1103/PhysRevC.67.014902

Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]

K. N. Barish, S. Batsouli, S. J. Bennett, M. Bertaina, A. Chikanian, T. M. Cormier, P. Fachini, B. Fadem, S. Q. Feng, L. E. Finch, N. K. George, S. V. Greene, P. Haridas, J. C. Hill, A. S. Hirsch, R. Hoversten, H. Z. Huang, H. Jaradat, T. Lainis, J. G. LajoieQ. Li, L. S. Liu, H. Long, C. Maguire, R. D. Majka, T. E. Miller, M. G. Munhoz, J. L. Nagle, A. Petridis, I. A. Pless, N. T. Porile, C. A. Pruneau, M. S.Z. Rabin, J. D. Reid, A. Rose, J. Sandweiss, R. P. Scharenberg, A. J. Slaughter, A. Tai, G. Van Buren, F. K. Wohn, Z. Xu, E. Yamamoto

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Abstract

We present the first comprehensive measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] collisions at [Formula Presented] using the E941/E864 spectrometer at the AGS. In comparison with the measurement of leading protons and neutrons using the same spectrometer, it is found that the cross section for baryon flavor change is large and strongly depends on rapidity, which is very different from the expectation of simple diquark-quark fragmentation of the incident proton. A suppression of leading Λ production in the forward rapidity region compared with nonstrange leading baryons is also observed. The relative probability of the projectile proton fragmentation into a [Formula Presented] versus into a neutron is found to be about 35% in the region of [Formula Presented] We will discuss the impact of these results on the dynamics of baryon fragmentation and baryon number transport in nuclear collisions.

Original language	English
Journal	Physical Review C - Nuclear Physics
Volume	67
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.67.014902
State	Published - 2003
Externally published	Yes

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Barish, K. N., Batsouli, S., Bennett, S. J., Bertaina, M., Chikanian, A., Cormier, T. M., Fachini, P., Fadem, B., Feng, S. Q., Finch, L. E., George, N. K., Greene, S. V., Haridas, P., Hill, J. C., Hirsch, A. S., Hoversten, R., Huang, H. Z., Jaradat, H., Lainis, T., ... Yamamoto, E. (2003). Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]. Physical Review C - Nuclear Physics, 67(1). https://doi.org/10.1103/PhysRevC.67.014902

@article{71483d14c9b344da976980c806943f15,

title = "Measurement of leading Λ{\textquoteright}s and [Formula Presented]{\textquoteright}s in [Formula Presented] Collisions at [Formula Presented]",

abstract = "We present the first comprehensive measurement of leading Λ{\textquoteright}s and [Formula Presented]{\textquoteright}s in [Formula Presented] collisions at [Formula Presented] using the E941/E864 spectrometer at the AGS. In comparison with the measurement of leading protons and neutrons using the same spectrometer, it is found that the cross section for baryon flavor change is large and strongly depends on rapidity, which is very different from the expectation of simple diquark-quark fragmentation of the incident proton. A suppression of leading Λ production in the forward rapidity region compared with nonstrange leading baryons is also observed. The relative probability of the projectile proton fragmentation into a [Formula Presented] versus into a neutron is found to be about 35% in the region of [Formula Presented] We will discuss the impact of these results on the dynamics of baryon fragmentation and baryon number transport in nuclear collisions.",

author = "Barish, {K. N.} and S. Batsouli and Bennett, {S. J.} and M. Bertaina and A. Chikanian and Cormier, {T. M.} and P. Fachini and B. Fadem and Feng, {S. Q.} and Finch, {L. E.} and George, {N. K.} and Greene, {S. V.} and P. Haridas and Hill, {J. C.} and Hirsch, {A. S.} and R. Hoversten and Huang, {H. Z.} and H. Jaradat and T. Lainis and Lajoie, {J. G.} and Q. Li and Liu, {L. S.} and H. Long and C. Maguire and Majka, {R. D.} and Miller, {T. E.} and Munhoz, {M. G.} and Nagle, {J. L.} and A. Petridis and Pless, {I. A.} and Porile, {N. T.} and Pruneau, {C. A.} and Rabin, {M. S.Z.} and Reid, {J. D.} and A. Rose and J. Sandweiss and Scharenberg, {R. P.} and Slaughter, {A. J.} and A. Tai and {Van Buren}, G. and Wohn, {F. K.} and Z. Xu and E. Yamamoto",

year = "2003",

doi = "10.1103/PhysRevC.67.014902",

language = "English",

volume = "67",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "1",

}

Barish, KN, Batsouli, S, Bennett, SJ, Bertaina, M, Chikanian, A, Cormier, TM, Fachini, P, Fadem, B, Feng, SQ, Finch, LE, George, NK, Greene, SV, Haridas, P, Hill, JC, Hirsch, AS, Hoversten, R, Huang, HZ, Jaradat, H, Lainis, T, Lajoie, JG, Li, Q, Liu, LS, Long, H, Maguire, C, Majka, RD, Miller, TE, Munhoz, MG, Nagle, JL, Petridis, A, Pless, IA, Porile, NT, Pruneau, CA, Rabin, MSZ, Reid, JD, Rose, A, Sandweiss, J, Scharenberg, RP, Slaughter, AJ, Tai, A, Van Buren, G, Wohn, FK, Xu, Z & Yamamoto, E 2003, 'Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]', Physical Review C - Nuclear Physics, vol. 67, no. 1. https://doi.org/10.1103/PhysRevC.67.014902

TY - JOUR

T1 - Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]

AU - Barish, K. N.

AU - Batsouli, S.

AU - Bennett, S. J.

AU - Bertaina, M.

AU - Chikanian, A.

AU - Cormier, T. M.

AU - Fachini, P.

AU - Fadem, B.

AU - Feng, S. Q.

AU - Finch, L. E.

AU - George, N. K.

AU - Greene, S. V.

AU - Haridas, P.

AU - Hill, J. C.

AU - Hirsch, A. S.

AU - Hoversten, R.

AU - Huang, H. Z.

AU - Jaradat, H.

AU - Lainis, T.

AU - Lajoie, J. G.

AU - Li, Q.

AU - Liu, L. S.

AU - Long, H.

AU - Maguire, C.

AU - Majka, R. D.

AU - Miller, T. E.

AU - Munhoz, M. G.

AU - Nagle, J. L.

AU - Petridis, A.

AU - Pless, I. A.

AU - Porile, N. T.

AU - Pruneau, C. A.

AU - Rabin, M. S.Z.

AU - Reid, J. D.

AU - Rose, A.

AU - Sandweiss, J.

AU - Scharenberg, R. P.

AU - Slaughter, A. J.

AU - Tai, A.

AU - Van Buren, G.

AU - Wohn, F. K.

AU - Xu, Z.

AU - Yamamoto, E.

PY - 2003

Y1 - 2003

N2 - We present the first comprehensive measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] collisions at [Formula Presented] using the E941/E864 spectrometer at the AGS. In comparison with the measurement of leading protons and neutrons using the same spectrometer, it is found that the cross section for baryon flavor change is large and strongly depends on rapidity, which is very different from the expectation of simple diquark-quark fragmentation of the incident proton. A suppression of leading Λ production in the forward rapidity region compared with nonstrange leading baryons is also observed. The relative probability of the projectile proton fragmentation into a [Formula Presented] versus into a neutron is found to be about 35% in the region of [Formula Presented] We will discuss the impact of these results on the dynamics of baryon fragmentation and baryon number transport in nuclear collisions.

AB - We present the first comprehensive measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] collisions at [Formula Presented] using the E941/E864 spectrometer at the AGS. In comparison with the measurement of leading protons and neutrons using the same spectrometer, it is found that the cross section for baryon flavor change is large and strongly depends on rapidity, which is very different from the expectation of simple diquark-quark fragmentation of the incident proton. A suppression of leading Λ production in the forward rapidity region compared with nonstrange leading baryons is also observed. The relative probability of the projectile proton fragmentation into a [Formula Presented] versus into a neutron is found to be about 35% in the region of [Formula Presented] We will discuss the impact of these results on the dynamics of baryon fragmentation and baryon number transport in nuclear collisions.

UR - http://www.scopus.com/inward/record.url?scp=85038981923&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.67.014902

DO - 10.1103/PhysRevC.67.014902

M3 - Article

AN - SCOPUS:85038981923

SN - 0556-2813

VL - 67

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

ER -

Measurement of leading Λ’s and [Formula Presented]’s in [Formula Presented] Collisions at [Formula Presented]

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