Study of parton transverse momentum using jets from hadron interactions

We study the momentum unbalance in two-jet events which we have obtained with a two-arm calorimeter array at Fermilab. Although the unbalance is relatively sharply peaked near zero, the rms unbalance is considerably greater than that due to instrumental effects alone. We interpret the unbalance as being principally due to effects of parton transverse momentum $K_{T}$ . We give results for the resolution-corrected rms unbalance (approximately equal to $K_{T}$ ) for a range of values of jet $p_{T}$ . $pp$ collisions are studied at three $s$ values, and $π^{+} p$ collisions are compared with them at two of these $s$ values. The results are compared with information on $K_{T}$ obtained from other experiments, principally experiments on dimuon production. Implications of the similarities and of the differences are discussed.

References (39)

R. P. Feynman et al., Phys. Rev. D 18, 3320 (1978) R. D. Field, Phys. Rev. Lett. 40, 997 (1978) R. Baier et al., Nucl. Phys. B118, 139 (1977)
M. Della Negra et al., Nucl. Phys. B127, 1 (1977)
E. L. Berger, in New Results in High Energy Physics—1978, proceedings of the Third International Conference at Vanderbuilt University on High Energy Physics, edited by R. S. Panvini and S. E. Csorna (AIP, New York, 1978), p. 178
P. Darriulat et al., Nucl. Phys. B107, 429 (1976)
C. Bromberg et al., Nucl. Phys. B134, 189 (1978)
G. C. Fox, in Particles and Fields '76, proceedings of the Annual Meeting of the Division of Particles and Fields of the APS, edited by H. Gordon and R. F. Peierls (BNL, Upton, New York, 1977), p. G 1
A. L. S. Angelis et al., Phys. Scr. 19, 116 (1979)
C. S. Lam and T. M. Yan, Phys. Lett. 71B, 173 (1973) J. Kogut and J. Shigemitsu, 71B, 165 (1977) H. D. Politzer, Nucl. Phys. B129, 301 (1977) H. Fritzsch and P. Minkowski, Phys. Lett. 73B, 80 (1978) F. Halzen and D. Scott, Phys. Rev. Lett. 40, 1117 (1978) E. L. Berger, [3]
Omitted endnote
D. M. Kaplan et al., Phys. Rev. Lett. 40, 435 (1978)
M. D. Corcoran et al., Phys. Rev. Lett. 41, 9 (1978)
L. Cormell et al., Fermilab Report No. 77-89 (unpublished)
A. R. Erwin, Phys. Scr. 19, 95 (1979)
Gail Hanson, in Gauge Theories and Leptons, proceedings of XIII Rencontre de Moriond, Les Arcs, France, 1978, edited by J. Trân Thanh Vân (Éditions Frontières, Gif-sur-Yvette, 1978), p. 15
M. Dris et al., Phys. Rev. D 19, 1361 (1979)
W. Selove, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978, edited by S. Homma, M. Kawaguchi, and H. Miyazawa (Phys. Soc. of Japan, Tokyo, 1979), p. 165
F. T. Dao et al., Phys. Rev. Lett. 39, 1388 (1977)
K. J. Anderson et al., in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 195
C. B. Newman et al., Phys. Rev. Lett. 42, 951 (1979)
Glennys R. Farrar, Nucl. Phys. B77, 429 (1974)
R. D. Field and R. P. Feynman, Phys. Rev. D 15, 2590 (1977)
[13,16]
M. A. Dris, Nucl. Instrum. Methods 158, 89 (1979)
A. R. Erwin, in New Results from High Energy Physics-1978 ([3]), p. 64
[15,16], [15]
R. L. McCarthy, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 170
Omitted endnote
P. M. Mockett, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 187
L. M. Lederman, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 706
K. J. Anderson et al., Phys. Rev. Lett. 42, 944 (1979)
Omitted endnote
J. F. Owens, in Proceedings of the XIVth Rencontre de Moriond, Les Arcs, 1979 (unpublished) B. Petterson, private communication
B. L. Combridge, J. Kripfganz, and J. Ranft, Phys. Lett. 70B, 234 (1977)
Omitted endnote
Omitted endnote
R. D. Field, Phys. Scr. 19, 131 (1979)
Omitted endnote
J. K. Yoh et al., Phys. Rev. Lett. 41, 684 (1978)
([30])

[c1] R. P. Feynman et al., Phys. Rev. D 18, 3320 (1978) R. D. Field, Phys. Rev. Lett. 40, 997 (1978) R. Baier et al., Nucl. Phys. B118, 139 (1977)

[c2] M. Della Negra et al., Nucl. Phys. B127, 1 (1977)

[c3] E. L. Berger, in New Results in High Energy Physics—1978, proceedings of the Third International Conference at Vanderbuilt University on High Energy Physics, edited by R. S. Panvini and S. E. Csorna (AIP, New York, 1978), p. 178

[c4] P. Darriulat et al., Nucl. Phys. B107, 429 (1976)

[c5] C. Bromberg et al., Nucl. Phys. B134, 189 (1978)

[c6] G. C. Fox, in Particles and Fields '76, proceedings of the Annual Meeting of the Division of Particles and Fields of the APS, edited by H. Gordon and R. F. Peierls (BNL, Upton, New York, 1977), p. G 1

[c7] A. L. S. Angelis et al., Phys. Scr. 19, 116 (1979)

[c8] C. S. Lam and T. M. Yan, Phys. Lett. 71B, 173 (1973) J. Kogut and J. Shigemitsu, 71B, 165 (1977) H. D. Politzer, Nucl. Phys. B129, 301 (1977) H. Fritzsch and P. Minkowski, Phys. Lett. 73B, 80 (1978) F. Halzen and D. Scott, Phys. Rev. Lett. 40, 1117 (1978) E. L. Berger, [3]

[c9] Omitted endnote

[c10] D. M. Kaplan et al., Phys. Rev. Lett. 40, 435 (1978)

[c11] M. D. Corcoran et al., Phys. Rev. Lett. 41, 9 (1978)

[c12] L. Cormell et al., Fermilab Report No. 77-89 (unpublished)

[c13] A. R. Erwin, Phys. Scr. 19, 95 (1979)

[c14] Gail Hanson, in Gauge Theories and Leptons, proceedings of XIII Rencontre de Moriond, Les Arcs, France, 1978, edited by J. Trân Thanh Vân (Éditions Frontières, Gif-sur-Yvette, 1978), p. 15

[c15] M. Dris et al., Phys. Rev. D 19, 1361 (1979)

[c16] W. Selove, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978, edited by S. Homma, M. Kawaguchi, and H. Miyazawa (Phys. Soc. of Japan, Tokyo, 1979), p. 165

[c17] F. T. Dao et al., Phys. Rev. Lett. 39, 1388 (1977)

[c18] K. J. Anderson et al., in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 195

[c19] C. B. Newman et al., Phys. Rev. Lett. 42, 951 (1979)

[c20] Glennys R. Farrar, Nucl. Phys. B77, 429 (1974)

[c21] R. D. Field and R. P. Feynman, Phys. Rev. D 15, 2590 (1977)

[c22] [13,16]

[c23] M. A. Dris, Nucl. Instrum. Methods 158, 89 (1979)

[c24] A. R. Erwin, in New Results from High Energy Physics-1978 ([3]), p. 64

[c25] [15,16], [15]

[c26] R. L. McCarthy, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 170

[c27] Omitted endnote

[c28] P. M. Mockett, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 187

[c29] L. M. Lederman, in Proceedings of the 19th International Conference on High Energy Physics, Tokyo, 1978 ([16]), p. 706

[c30] K. J. Anderson et al., Phys. Rev. Lett. 42, 944 (1979)

[c31] Omitted endnote

[c32] J. F. Owens, in Proceedings of the XIVth Rencontre de Moriond, Les Arcs, 1979 (unpublished) B. Petterson, private communication

[c33] B. L. Combridge, J. Kripfganz, and J. Ranft, Phys. Lett. 70B, 234 (1977)

[c34] Omitted endnote

[c35] Omitted endnote

[c36] R. D. Field, Phys. Scr. 19, 131 (1979)

[c37] Omitted endnote

[c38] J. K. Yoh et al., Phys. Rev. Lett. 41, 684 (1978)

[c39] ([30])

Physical Review D

Export citation

Export citation

Study of parton transverse momentum using jets from hadron interactions

Abstract

References (39)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation