This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.71.014023 in citations.
Please use the identifier: http://hdl.handle.net/2128/1709 in citations.
Breaking of k[perpendicular]-factorization for single jet production off nuclei
Breaking of k[perpendicular]-factorization for single jet production off nuclei
The linear k(perpendicular to) factorization is part and parcel of the perturbative QCD description of high-energy hard processes off free nucleons. In the case of heavy nuclear targets the very concept of nuclear parton density becomes ill-defined as exemplified by the recent derivation [N. N. Niko...
Saved in:
Personal Name(s): | Nikolaev, N. N. |
---|---|
Schäfer, W. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: | Physical Review D Physical review / D, 71 71 (2005 2005) 1 1, S. 014023 014023 |
Imprint: |
[S.l.]
Soc.
2005
2005-01-21 2005-01-01 |
Physical Description: |
014023 |
DOI: |
10.1103/PhysRevD.71.014023 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Physical Review D
71 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1709 in citations.
The linear k(perpendicular to) factorization is part and parcel of the perturbative QCD description of high-energy hard processes off free nucleons. In the case of heavy nuclear targets the very concept of nuclear parton density becomes ill-defined as exemplified by the recent derivation [N. N. Nikolaev, W. Schafer, B. G. Zakharov, and V. R. Zoller, J. Exp. Theor. Phys. 97, 441 (2003).] of nonlinear nuclear k(perpendicular to) factorization for forward dijet production in deep inelastic scattering off nuclei. Here we report a derivation of the related breaking of k(perpendicular to) factorization for single-jet processes. We present a general formalism and apply it to several cases of practical interest: open-charm and quark and gluon-jet production in the central to beam fragmentation region of gamma(*)p, gamma(*)A, pp, and pA collisions. We show how the pattern of k(perpendicular to) factorization breaking and the nature and number of exchanged nuclear pomerons do change within the phase space of produced quark and gluon jets. As an application of the nonlinear k(perpendicular to) factorization we discuss the Cronin effect. Our results are also applicable to the p(perpendicular to) dependence of the Landau-Pomeranchuk-Migdal effect for, and nuclear quenching of, jets produced in the proton hemisphere of pA collisions. |