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Author: Paolo Gunnellini Publisher: Springer ISBN: 3319222139 Category : Science Languages : en Pages : 290
Book Description
This thesis addresses in a very new and elegant way several measurements and the extraction of so-called double parton scattering. The new and elegant way lies in the combination of measurements and a very smart extraction of double parton scattering results, which is easy to apply and overcomes many of the technical difficulties of older methods. Many new phenomena in particle physics can be observed when particles are collided at the highest energies; one of the highlights in recent years was the discovery of the Higgs boson at the Large Hadron Collider at CERN. Understanding the production mechanism of the Higgs boson at the LHC requires detailed knowledge of the physics of proton-proton collisions. When the density of partons in the protons becomes large, there is a non-negligible probability that more than one parton participates in the interaction and the so-called double parton scattering becomes important. In some cases very particular final state signatures can be observed, which can be regarded as an indication of such double partonic scattering and where the different interactions can be separated. Such multiple partonic interactions play an important role when precise predictions from known processes are required.
Author: Paolo Gunnellini Publisher: Springer ISBN: 3319222139 Category : Science Languages : en Pages : 290
Book Description
This thesis addresses in a very new and elegant way several measurements and the extraction of so-called double parton scattering. The new and elegant way lies in the combination of measurements and a very smart extraction of double parton scattering results, which is easy to apply and overcomes many of the technical difficulties of older methods. Many new phenomena in particle physics can be observed when particles are collided at the highest energies; one of the highlights in recent years was the discovery of the Higgs boson at the Large Hadron Collider at CERN. Understanding the production mechanism of the Higgs boson at the LHC requires detailed knowledge of the physics of proton-proton collisions. When the density of partons in the protons becomes large, there is a non-negligible probability that more than one parton participates in the interaction and the so-called double parton scattering becomes important. In some cases very particular final state signatures can be observed, which can be regarded as an indication of such double partonic scattering and where the different interactions can be separated. Such multiple partonic interactions play an important role when precise predictions from known processes are required.
Author: Paolo Bartalini Publisher: World Scientific Publishing ISBN: 981322777X Category : Science Languages : en Pages : 472
Book Description
Many high-energy collider experiments (including the current Large Hadron Collider at CERN) involve the collision of hadrons. Hadrons are composite particles consisting of partons (quarks and gluons), and this means that in any hadron–hadron collision there will typically be multiple collisions of the constituents — i.e. multiple parton interactions (MPI). Understanding the nature of the MPI is important in terms of searching for new physics in the products of the scatters, and also in its own right to gain a greater understanding of hadron structure. This book aims at providing a pedagogical introduction and a comprehensive review of different research lines linked by an involvement of MPI phenomena. It is written by pioneers as well as young leading scientists, and reviews both experimental findings and theoretical developments, discussing also the remaining open issues.
Author: Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
Kinematic properties of four jet events taken during the 1988/89 run of the Tevatron at Fermilab are compared with the predictions of a leading order QCD calculation. Preliminary work on a search for double parton scattering is presented.
Author: Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
Kinematic properties of four jet events taken during the 1988/89 run of the Tevatron at Fermilab are compared with the predictions of a leading order QCD calculation. Preliminary work on a search for double parton scattering is presented.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
Kinematic properties of four-jet events in p[bar p] collisions at [radical]s = 1.8 TeV are compared with the predictions of leading order quantum chromodynamics. We place an upper limit on the double parton scattering cross of [sigma][sub DP] 120 nb (95% C.L.) for partons with transverse momenta greater than 18 GeV/c. Defining the effective cross section [sigma][sub eff] through the equation of [sigma][sub eff] = [sigma][sub DP] = [sigma][sub dijet]/([sup 2]/[sigma][sub eff]), where [sigma][sub dijet] is the cross section for two-jets events, the limit [sigma][sub eff] 3.9 mb (95% C.L.) is also placed. Implications for physics at the SSC ([radical]s = 40 TeV) are discussed.
Author: Patrick L.S. Connor Publisher: Springer Nature ISBN: 3030343839 Category : Science Languages : en Pages : 325
Book Description
^ 74 GeV and |y| 2.4; the b jets must contain a B hadron. The measurement has significant statistics up to p T ∼ O(TeV). Advanced methods of unfolding are performed to extract the signal. It is found that fixed-order calculations with underlying event describe the measurement well.
Author: Paolo Gunnellini
Author: Paolo Gunnellini
Author: Maxim Pieters
Author: Paolo Bartalini
Author: Orel Gueta
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Author: ![A Study of Four-jet Events and Search for Double Parton Interactions at [radical] PDF](https://books.google.com/books/content/images/frontcover/kWV9AQAACAAJ?fife=w80-h100)
Author: 
Author: 
Author: Iftach Sadeh
Author: Patrick L.S. Connor