Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 305 for “"Center of Mass"”.
-
Hyperon Production in Proton-Nucleus Collisions at 42 GeV Center of Mass Energy
The subject of this thesis is a measurement of hyperon production ratios which is of special interest as a reference on Quark Gluon Plasma search. The data used in this analysis have been taken with a minimum bias trigger at the fixed target experiment HERA-B, which uses the 920 GeV proton beam of …
-
Properties of Fragmentation Photons in p+p Collisions at 200 GeV Center-of-Mass Energy
The strong modification to the production of final state hadrons in heavy ion collisions is a key signature of the hot dense medium produced at energies achieved at the Relativistic Heavy Ion Collider (RHIC). Understanding the mechanisms for the parton energy loss responsible for these …
-
A study of e+e- → π+π-πºπº at 3.090 GeV center of mass energy
… on 2012-01-20T18:43:41Z No. of bitstreams: 1 1993_mcgowan.pdf: 8172830 bytes, checksum: 738cd6d8a496a2abcedadc806ea99296 (MD5)
-
Adaptive Control and Estimation of the Center of Mass of a 5-degree-of-freedom Spacecraft Testbed
… torque. This external torque is produced by the offset between the predetermined geometrical center of rotation (<em>CoR</em>) and the center of mass (<em>CoM</em>) of the testbed, which makes the system behave like a three-dimensional pendulum.</p> <p>Testbeds with rotational degrees of freedom …
-
A Measurement of B Hadron Correlations in Proton-Antiproton Collisions at Center of Mass Energy = 1.8 TeV
… correlations provide input into the significance of higher-order bb¯ production mechanisms. We present a study of B hadron correlations in pp¯ collisions at s = 1.8 TeV. Events containing a bb¯ pair are identified by the presence of an energetic electron or muon and both B hadrons …
-
A measurement of B hadron correlations in proton-antiproton collisions at center of mass energy = 1.8 TeV
… on 2012-10-23T19:27:50Z No. of bitstreams: 1 Lannon_Kevin.pdf: 4162855 bytes, checksum: c5206b367dabcd237551a922275fc6f7 (MD5)
-
Study of D-star mesons produced in electron positron annihilations at 4.14 GeV center of mass energy
… D* mesons produced in e+e-annihilations at a center of mass energy of 4.14 GeV are observed by the Mark III detector at SPEAR. The recoil mass spectrum of the D mesons is used to extract the branching fractions of the charged and neutral D*. Measurements are presented for the two decay modes …
-
Inclusive hadron production in electron-positron collisions with center-of-mass energies from 50 to 61.4 GeV
… have been observed in the TRISTAN energy region of 50 to 61.4 GeV using a data sample of 245.4 pb⁻¹. Their multiplicities and total cross sections are found and compared with the results from experiments at other center-of-mass energies. The multiplicities are compared with various theoretical …
-
Evidence for e+e− → γηc(1S) at center-of-mass energies between 4.01 and 4.60 GeV at BESIII
This dissertation shows the first evidence of the process e+e− → γηc(1S) using data collected by the BESIII experiment operating at BEPCII. This process can be used as a probe to study the nature of recently discovered charmonium-like Y states between 4.0 and 4.6 GeV, including the Y (4260) and Y …
-
A study of hadronic final states from e̳+e̳- annihilation as a function of center of mass energy
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1986.
-
Suppression of High Transverse Momentum Charged Hadrons in Au+Au Collisions at 200 GeV Nucleon-Nucleon Center of Mass Energy
<p>The dynamical properties of quark gluon plasma are studied in heavy ion collisions. Gold ions are accelerated with the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory and collided at energies up to 200 GeV per nucleon. Collision products and their properties are detected …
-
High energy pair production of muons in electron-positron annihilation at center of mass energies ranging from 130 to 183Gev
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.
-
Measurement of the CP Asymmetry in Semimuonic B Decays Produced in Proton-Antiproton Collisions at Center of Mass Energy= 1.96 TeV
… muon pairs originating from semileptonic decays of pairs of B hadrons. Low transverse momentum dimuon pairs are evaluated to determine B hadron content using a log likelihood fit to two-dimensional impact parameter significance templates. Corrections are made for asymmetries arising from the …
-
A calorimetric measurement of the strong coupling constant in electron-positron annihilation at a center-of-mass energy of 91.6 GeV
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
-
Analysis of the Vector Boson Self Interaction and the Search for Anomalous Couplings at Center-of-Mass Energy = 1.8 TeV Proton-Antiproton Collisions
… in DSpace on 2015-09-25T20:02:33Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3017052.pdf: 8821547 bytes, checksum: f5bb890607af3b59bcc503dca82c4078 (MD5) Previous issue date: 2001
-
Measurement Of Angular Coefficients Of Drell-Yan E(+) E(-) Pairs In Ppbar Collisions At Square Root Of Center Of Mass Energy Of 1.96 Tev.
In this paper we present the status of the measurement of angular distributions of final state electrons in ppbar → γ*/Z → e+ e− + X events produced in the Z boson mass region at square root of center of mass energy of 1.96 TeV at the Tevatron. For this analysis, we have used the Run IIb2 dataset …
-
A Measurement of the Top-Antitop Production Cross Section in Proton-Antiproton Collisions at Center of Mass Energy = 1.96 TeV Using Soft Muon Tagging
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
-
Measurement of the Top Quark-Antitop Quark Differential Cross Section, dsigma/dM(tt), in Proton-Antiproton Collisions at Center of Mass Energy = 1.96 TEV
I present a measurement of the tt¯ differential cross section, dsigma/dMtt¯, in pp¯ collisions at s = 1.96 TeV using 2.7 fb-1 of CDF II data. I find that dsigma/dMtt¯ is consistent with the Standard Model expectation, as modeled by PYTHIA with CTEQ5L parton distribution …
-
Measurements of the B production cross section in proton-antiproton collisions at center of mass energy = 1.96 TeV using semileptonic decays of B hadrons
… on 2012-10-23T19:23:46Z No. of bitstreams: 1 Kraus_James.pdf: 4874409 bytes, checksum: 74194484a218fcd4e1133aab810f8fe0 (MD5)
Page 1 of 16