Multiparton interactions and production of minijets in high energy hadronic collisions.
نویسندگان
چکیده
We discuss the inclusive cross section to produce two minijets with a large separation in rapidity in high energy hadronic collisions. The contribution to the inclusive cross section from the exchange of a BFKL Pomeron is compared with the contribution from the exchange of two BFKL Pomerons, which is induced by the unitarization of the semi-hard interaction. The effect of the multiple exchange is studied both as a function of the azimuthal correlation and as a function of the transverse momentum of the observed minijets.
منابع مشابه
Transverse Energy and Minijets in High Energy Collisions
Minijet production and transverse energy are important not only to understand hadronic collisions, but also for the interpretation of nucleus collisions at RHIC and LHC, where it determines the “initial conditions” for the flow in a hadronic soup or a plasma. For high collision energies and small q⊥ (minijets) we enter the BFKL region. This implies that we must take into account off-shell parto...
متن کاملHard Diffraction and Central Diffraction in Hadron–hadron and Photon–hadron Collisions∗
Hadron production in single and central diffraction dissociation is studied in a model which includes soft hadron interaction as controlled by a supercritical pomeron parametrization and hard diffraction. Hard diffraction is described using leading-order QCD matrix elements together with the parton distributions for the proton, the less well known photon parton densities and a conjectured parto...
متن کامل3 D parton imaging of the nucleon in high – energy pp and pA collisions
Dedicated to Klaus Goeke on the occasion of his 60th birthday We discuss several examples of how the transverse spatial distribution of partons in the nucleon, as well as multiparton correlations, can be probed by observing hard processes (dijets) in high–energy pp (¯ pp) and pA (dA) collisions. Such studies can complement the information gained from measurements of hard exclusive processes in ...
متن کاملThe Underlying Event and the Total Cross Section from Tevatron to the LHC
Multiple partonic interactions are widely used to simulate the hadronic final state in high energy hadronic collisions, and successfully describe many features of the data. It is important to make maximum use of the available physical constraints on such models, particularly given the large extrapolation from current high energy data to LHC energies. In eikonal models, the rate of multiparton i...
متن کاملProduction of gauge bosons plus jets in hadronic collisions ∗ †
Multijet final states are characteristic of a large class of important phenomena present in highenergy hadronic collisions. QCD interactions generate multijet final states via radiative processes at high orders of perturbation theory (pure QCD processes). Heavy particles in the Standard Model (SM), such as W and Z bosons or the top quark, t, decay to multiquark configurations (eventually leadin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review. D, Particles and fields
دوره 53 1 شماره
صفحات -
تاریخ انتشار 1996