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Showing 1 to 20 of 111 for “"Proton-proton collisions"”.
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Pion Production in Proton-Proton Collisions
Made available in DSpace on 2015-05-12T17:11:56Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0013513.PDF: 1168333 bytes, checksum: f618f06c8cc08d8460ffd252e8069f29 (MD5) Previous issue date: 1955
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Double parton scattering in proton-proton collisions
… interactions are expected to occur frequently in proton-proton (p-p) collisions at the LHC. They can give rise to significant backgrounds to certain rare single scattering (SPS) signals, and are an interesting signal process in their own right. In this thesis, we discuss the theoretical …
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Charge prong multiplicity distributions in proton-proton collisions at 28.5 Ge V/c
… of the kinematic variable of the fast recoil proton for 190,000 events in the reaction pp→p+ANYTHING at 28.5 GeV/c. We find the distributions to be similar to charge prong multiplicities for pp →ANYTHING at different energies. We have looked for a KNO type scaling in W, P and t and find strong …
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Dihadron Fragmentation Functions In Proton-Proton Collisions At The Relativistic Heavy Ion Collider (rhic)
… shown an away-side that is suppressed in Au+Au collisions compared to proton+proton/Deuteron+proton collisions. Such suppression is taken as a signature of the predicted QCD dense medium. However, the near-side of the azimuthal correlations shows little modification. The near-side of such …
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Deep Learning for online tagging of proton-proton collisions at the High-Luminosity LHC
The Large Hadron Collider is a key facility in high-energy physics and one of the most prominent producers of big data. However, storing all this data is unfeasible; thus, a significant portion is filtered out using a trigger system. The upcoming High Luminosity upgrade is expected to increase data …
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Identifying fake leptons in ATLAS while hunting SUSY in 8 TeV proton-proton collisions
For several theoretically and experimentally motivated reasons, super- symmetry (SUSY) has for some time been identified as an interesting candidate for a theory of fundamental particle physics beyond the Stan- dard Model. The ATLAS collaboration, of which I am a member, possess a detector emplaced …
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Charged Vector Boson (W ±) production in simulated proton-proton collisions at √s = 5.36 TeV.
… rapidity region of simulated relativistic proton-proton collisions, where the POWHEG and Pythia Monte Carlo (MC) event generators are used to simulate the events of interest for the analysis. The W ± boson production is studied via the muonic decay channel as W ± → μ±+νμ (–). It is …
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Studying the Quark Structure of the Proton in High Energy Proton-Proton Collisions at RHIC
… from inclusive di-hadron production in polarized proton-proton collisions at Relativistic Heavy Ion Collider. This measurement combines the transversity distribution function and a polarized di-hadron fragmentation function, therefore can be included in the global analysis as an independent …
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Dijet production in polarized proton-proton collisions at [the square root of sigma] = 200 GeV
… that quarks only carry approximately 30% of the proton spin, which led to interest in measuring the contributions of other components. Through polarized proton-proton collisions at the Relativistic Heavy Ion Collider (RHIC), the world's only polarized proton collider, it is possible to make an …
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A search for Z' bosons in the dimuon decay channel in 8 TeV proton-proton collisions
… decay channel using 20 fb$^{-1}$ of $p$-$p$ collisions at $\sqrt{s} = 8 $ TeV, produced during the 2012 run at the Large Hadron Collider at CERN, using the ATLAS detector to record the collision products. The search proceeds via a comparison of the reconstructed dimuon invariant mass …
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Performance of a photon conversion trigger in proton-proton collisions using the ALICE Transition Radiation Detector
The study aimed to find the yield of conversion photons in pp √ s = 13 TeV with less uncertainty for high transverse momentum photons through the TRD in ALICE (necessary for π 0 and η cross-sections). The calculation of the yield of conversion photons were successful in replicating their yield from …
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Measurement of the charged-hadron multiplicity in proton-proton collisions at LHC with the CMS detector
… densities and multiplicity distributions in protonproton collisions at [the square root of sigma] = 0.9, 2.36, 7.0 TeV were measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield was obtained by counting the number of hit-pairs (tracklets). The …
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Measuring the contribution of low Bjorken-x gluons to the proton spin with polarized proton-proton collisions
Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-12T14:41:03Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 wolin_scott.pdf: 29387679 bytes, checksum: f8dc36cd5021b9d3f03851d3d9ba5b7a (MD5)
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Search for a charged Higgs Boson in proton-proton collisions at the LHC using the ATLAS detector
… to an integrated luminosity of 4.6 $\invfb$ proton-proton collisions with $\sqrt{s}$ = 7 TeV. These searches are conducted using the decay channel $\ttbar \rightarrow Wb \Hpm b$, with $\Hpm \rightarrow \tau_{had} \nu$ and the $W$ boson decaying hadronically ($\tau$+jets channel) or …
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Search for Heavy Resonances Decaying to Taus in 7 TeV Proton-Proton Collisions at the Large Hadron Collider
… to an integrated luminosity of 36 pb^-1 of proton-proton collisions at sqrt(s) = 7 TeV collected with the CMS detector at the CERN LHC. The number of observed events in the data is in good agreement with the predictions for SM background processes. In the context of the Sequential SM, a Z0 …
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Observation of the electroweak production of two same-sign W bosons in proton-proton collisions with the ATLAS detector
… jets using 36.1 fb1 of data collected at a proton-proton center of mass energy of 13 TeV in 2015 and 2016. This thesis presents an overview of the observation of this rare process by the ATLAS experiment while focussing on the study of backgrounds resulting from photon conversions as well as …
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Measurement of the tt̅W and tt̅Z Cross Sections using Proton-Proton Collisions at √s = 8 TeV with the ATLAS Detector
… The measurement uses 20.3 fb−1 of data from proton-proton collisions at √s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. Four different final states are considered: two opposite-sign leptons, two same-sign leptons, three leptons, and four leptons. The t t̅ W and t t̅ Z …
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