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Creators/Authors contains: "Lorenzon, W."

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  1. ; ; ; ; ; ; ; ; ; ; et al (, Journal of Instrumentation)
    Abstract All experiments observing dilepton pairs (e.g.e+e-,  μ+μ-) must confront the existence of acombinatoricbackground caused by the combining of tracks not arising from the same physics vertex. Some method must be devised to calculate and remove this background. In this document we describe a particular event-mixing method relying on many of the unique aspects of the SeaQuest spectrometer and data. The method described here calculates the combinatoric background with correct normalization; i.e., there is no need to assign a floating normalization factor that is then determined in a subsequent fitting procedure. Numerous tests are applied to demonstrate the reliability of the method. 
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  2. ; ; ; ; ; ; ; ; ; ; et al (, Physics Letters B)
    Free, publicly-accessible full text available November 1, 2025
  3. ; ; ; ; ; ; ; ; ; ; et al (, The European Physical Journal A)
    Abstract We propose a new measurement of the ratio of positron-proton to electron-proton elastic scattering at DESY. The purpose is to determine the contributions beyond single-photon exchange, which are essential for the Quantum Electrodynamic (QED) description of the most fundamental process in hadronic physics. By utilizing a 20 cm long liquid hydrogen target in conjunction with the extracted beam from the DESY synchrotron, we can achieve an average luminosity of$$2.12\times 10^{35}$$ 2.12 × 10 35  cm$$^{-2}\cdot $$ - 2 · s$$^{-1}$$ - 1  ($$\approx 200$$ ≈ 200 times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2 GeV, followed by measurements at 3 GeV, thereby providing new data up to$$Q^2=4.6$$ Q 2 = 4.6  (GeV/c)$$^2$$ 2 (twice the range of current measurements). We present and discuss the proposed experimental setup, run plan, and expectations. 
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  4. ; ; ; ; ; ; ; ; ; ; et al (, The European Physical Journal A)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review C)
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  6. ; ; ; ; ; ; ; ; ; ; et al (, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)
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  7. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review C)
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  8. ; ; ; ; ; ; ; ; ; ; et al (, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)
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  9. ; ; ; ; ; ; ; ; ; ; et al (, Nature)
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  10. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review C)
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