Bloch-Nordsieck regularization of QCD transverse-momentum distributions

A. Grau; G. Pancheri; Y. N. Srivastava

doi:10.1103/PhysRevD.41.3360

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Bloch-Nordsieck regularization of QCD transverse-momentum distributions

A. Grau

G. Pancheri

Y. N. Srivastava

Universitat Autònoma de Barcelona, Grup de Física Teòrica, 08193 Bellaterra, Spain

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, P.O. Box 13, I-00044 Frascati, Italy
University of Palermo, Palermo, Italy

Northeastern University, Boston, Massachusetts 02115
University of Perugia, Perugia, Italy

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Phys. Rev. D 41, 3360 – Published 1 June, 1990

DOI: https://doi.org/10.1103/PhysRevD.41.3360

Abstract

An expression for transverse-momentum distributions is presented for Drell-Yan-type processes: it is infrared finite, includes soft-gluon summation in the leading-logarithmic approximation and reproduces the first-order perturbative results at large $p_{T}$ . In addition, our expression incorporates soft QCD radiative corrections to that part of the cross section where hard bremsstrahlung dominates. We compute W transverse-momentum distributions and average values for a set of different energies: √s =630 GeV, 1.8 TeV, 6 TeV, and 18 TeV.

References (13)

Yu L. Dokshitzer, D. I. D'Yakonov and S. I. Troyan, Phys. Lett. 79B, 269 (1978); G. Pancheri and Y. Srivastava, Phys. Rev. D 15, 2915 (1977).
G. Parisi and R. Petronzio, Nucl. Phys. B154, 427 (1979).
R. Chiappetta and M. Greco, Nucl. Phys. B199, 77 (1982).
UA1 Collaboration, G. Arnison et al., Lett. Nuovo Cimento 44, 1 (1985); , Phys. Lett. B 193, 389 (1987).
G. Altarelli, R. K. Ellis, M. Greco and G. Martinelli, Nucl. Phys. B246, 12 (1984).
A. Nakamura, G. Pancheri and Y. Srivastava, Phys. Rev. D 29, 1936 (1984).
S. D. Ellis, R. Kleiss and W. J. Srirling, Phys. Lett. 154B, 435 (1985).
E. Etim, G. Pancheri and B. Touschek, Nuovo Cimento 51B, 276 (1967).
F. Halzen, A. D. Martin and D. M. Scott, Phys. Rev. D 25, 754 (1982); Phys. Lett. 112B, 160 (1982).
K. Kajantie and R. Raitio, Nucl. Phys. B139, 72 (1978).
G. Pancheri and Y. N. Srivastava, Report No. LNF-83/86 (P), 1986 (unpublished).
E. Eichten, I. Hinchliffe, K. Lane and C. Quigg, Rev. Mod. Phys. 56, 579 (1984).
J. Kodaira and L. Trentadue, Phys. Lett. 112B, 66 (1982).

[c1] Yu L. Dokshitzer, D. I. D'Yakonov and S. I. Troyan, Phys. Lett. 79B, 269 (1978); G. Pancheri and Y. Srivastava, Phys. Rev. D 15, 2915 (1977).

[c2] G. Parisi and R. Petronzio, Nucl. Phys. B154, 427 (1979).

[c3] R. Chiappetta and M. Greco, Nucl. Phys. B199, 77 (1982).

[c4] UA1 Collaboration, G. Arnison et al., Lett. Nuovo Cimento 44, 1 (1985); , Phys. Lett. B 193, 389 (1987).

[c5] G. Altarelli, R. K. Ellis, M. Greco and G. Martinelli, Nucl. Phys. B246, 12 (1984).

[c6] A. Nakamura, G. Pancheri and Y. Srivastava, Phys. Rev. D 29, 1936 (1984).

[c7] S. D. Ellis, R. Kleiss and W. J. Srirling, Phys. Lett. 154B, 435 (1985).

[c8] E. Etim, G. Pancheri and B. Touschek, Nuovo Cimento 51B, 276 (1967).

[c9] F. Halzen, A. D. Martin and D. M. Scott, Phys. Rev. D 25, 754 (1982); Phys. Lett. 112B, 160 (1982).

[c10] K. Kajantie and R. Raitio, Nucl. Phys. B139, 72 (1978).

[c11] G. Pancheri and Y. N. Srivastava, Report No. LNF-83/86 (P), 1986 (unpublished).

[c12] E. Eichten, I. Hinchliffe, K. Lane and C. Quigg, Rev. Mod. Phys. 56, 579 (1984).

[c13] J. Kodaira and L. Trentadue, Phys. Lett. 112B, 66 (1982).

Physical Review D

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Bloch-Nordsieck regularization of QCD transverse-momentum distributions

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References (13)

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