Studies of correlations between /D and D mesons in high energy photoproduction
University of California, Davis1, CINVESTAV2, University of Colorado Boulder3, Fermilab4, Universidad de Guanajuato5, University of Illinois at Urbana–Champaign6, Indiana University7, Korea University8, Kyungpook National University9, University of Milan10, University of North Carolina at Chapel Hill11, University of Puerto Rico at Mayagüez12, University of South Carolina13, University of Tennessee14, Vanderbilt University15
TL;DR: In this article, a large sample of events containing fully and partially reconstructed pairs of charmed D mesons recorded by the Fermilab photoproduction experiment FOCUS (FNAL-E831) is presented.
About: This article is published in Physics Letters B.The article was published on 2003-07-24 and is currently open access. It has received 9 citations till now. The article focuses on the topics: Meson & Quark.
Citations
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CERN1
TL;DR: In this paper, the authors review the hadro-production data presently available on open charm and beauty absolute production cross-sections, collected by experiments at CERN, DESY and Fermilab.
129 citations
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TL;DR: In this paper, the correlation of charm-quark-charm-antiquark in γp scattering is calculated in the kt-factorization approach, and the results of their calculations are compared with very recent experimental results from the FOCUS Collaboration.
8 citations
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TL;DR: In this paper, the authors carried out a systematic study of the bounds that can be set on Planck-scale deformations of relativistic symmetries and CPT from precision measurements of particle and antiparticle lifetimes.
Abstract: We carry out a systematic study of the bounds that can be set on Planck-scale deformations of relativistic symmetries and CPT from precision measurements of particle and antiparticle lifetimes. Elaborating on our earlier work [1] we discuss a new form of departure from CPT invariance linked to the possibility of a non-trivial geometry of four-momentum and its consequences for the particle and antiparticle mass-shells and decay probabilities. Our main result is a collection of experimental bounds that can be obtained for the deformation parameter of the theoretical model under consideration based on current data and sensitivities of planned experiments at high energies.
7 citations
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TL;DR: In this paper, a study of prompt charm-hadron pair production in proton-lead collisions at sNN=8.16 µTeV was performed using data corresponding to an integrated luminosity of about 30 µnb-1, collected with the LHCb experiment.
Abstract: A study of prompt charm-hadron pair production in proton-lead collisions at sNN=8.16 TeV is performed using data corresponding to an integrated luminosity of about 30 nb-1, collected with the LHCb experiment. Production cross sections for different pairs of charm hadrons are measured and kinematic correlations between the two charm hadrons are investigated. This is the first measurement of associated production of two charm hadrons in proton-lead collisions. The results confirm the predicted enhancement of double parton scattering production in proton-lead collisions compared to the single parton scattering production.
5 citations
Cites methods from "Studies of correlations between /D ..."
...Production of OS charm and beauty pairs has been studied in fully reconstructed decays [47–51] and using partially reconstructed decays [52–59], and the hadron and anti-hadron are found to be correlated; in particular, the azimuthal angle, ∆φ, between the two hadron directions projected to the plane transverse to the beam line favors values close to ∆φ = 0 or π....
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TL;DR: The history of the charm quantum number can be found in this article, where the experimental environments and instruments employed to study the behavior of charm hadrons and the theoretical tools for treating charm dynamics are described.
Abstract: Summary. | This is part I of a two-part review of charm physics. After briefly recapitulating the history of the charm quantum number we sketch the experimental environments and instruments employed to study the behaviour of charm hadrons and then describe the theoretical tools for treating charm dynamics. After dis- cussing a wide range of inclusive production processes we analyze the spectroscopy of hadrons with hidden and open charm and the weak lifetimes of charm mesons and baryons. In part II we shall address exclusive charm decays, D 0 D 0 oscillations and CP violation. This review is meant to be both a pedagogical introduction for the young scholar and a useful reference for the experienced researcher. We aim for a complete description of the fundamental features while providing a guide through the literature for purely technical issues.
4 citations
References
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CERN1
TL;DR: Pythia and JETSET as discussed by the authors are two main components of the “Lund Monte Carlo” program suite, and they can be used to generate high-energy-physics "events".
2,109 citations
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TL;DR: Pythia version 6 represents a merger of the Pythia 5, Jetset 7 and SPythia programs, with many improvements as discussed by the authors, which can be used to generate high-energy physics events.
1,723 citations
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TL;DR: In this article, the authors presented a calculation of the fully exclusive parton cross sections for heavy-quark production at order O( α S 3 ) in QCD, where α is the number of quarks in the system.
590 citations
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TL;DR: In this paper, the one-particle inclusive differential cross section for heavy quark production in hadronic collisions, including the O(αS3) radiative corrections, is presented.
531 citations
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01 Sep 1992-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The magnetic spectrometer and charged particle tracking system used in Fermilab experiment 687 to study the photoproduction and decay of charm particles are described in detail as mentioned in this paper.
Abstract: The magnetic spectrometer and charged particle tracking system used in Fermilab experiment 687 to study the photoproduction and decay of charm particles are described in detail. The photons are produced by a wideband electron beam which can operate at energies up to 600 GeV/ c . The spectrometer consists of a high resolution silicon microstrip detector, a large aperture dipole magnet, proportional chambers, a second large aperture dipole, and more proportional chambers. Three multi-cell threshold Cherenkov counters provide charged particle identification. The tracking system is capable of resolving the secondary decay vertices of charm and beauty mesons and baryons from the primary interaction vertex. It also determines the invariant mass of the multibody final states of particles containing heavy quarks with excellent resolution. The particle identification system allows one to identify kaons and protons present in these final states clearly. This collection of detectors produces very clean signals for charm particles and permits one to make many cross checks of the apparatus. The performance is illustrated for a variety of charm signals. Of particular interest is a description of the tracking through the silicon microstrip detector and its use in isolating downstream decay vertices. Two complementary approaches to the reconstruction of secondary decay vertices are presented and insight is gained by comparing their strengths and weaknesses.
120 citations