Minijet transverse spectrum in high-energy hadron-nucleus collisions - art. no. 116004

Hadron-nucleus collisions at CERN LHC energies are studied by including exp licitly semihard parton rescatterings in the collision dynamics. Under rath er general conditions, we obtain explicit formulas for the semihard cross s ection and the inclusive minijet transverse spectrum. As an effect of the r escatterings the spectrum is lowered at small p(t) and is enhanced at relat ively large transverse momenta, the deformation being more pronounced at in creasing rapidity. Its study allows to test the proposed interaction mechan isms and represents an important baseline to examine nucleus-nucleus collis ions.