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• W4387188041 abstract "The impact of different diquark fragmentation mechanisms on proton, ${ensuremath{pi}}^{ifmmodepmelsetextpmfi{}}$, and ${K}^{ifmmodepmelsetextpmfi{}}$ spectra in $20%$ central $^{7}mathrm{Be}+^{9}mathrm{Be}$ collisions has been investigated at the CERN Super Proton Synchrotron (SPS) energies using the Heavy Ion Jet Interaction Generator (hijing) code. The advanced popcorn (AP) string model of pythia 6.4 was employed, and two popcorn scenarios for diquark fragmentation were considered: The simple diquark model and the AP model. The AP mechanism allows for the implementation of beam remnant diquark fragmentation (BRDF), which occurs when a quark is expelled from a proton beam. The AP model provides two possible channels for baryon production from BRDF: The baryon-antibaryon $(Boverline{B})$ configuration, as well as configurations such as $BMoverline{B}$ and $BMMoverline{B}$. In the diquark model, a $Boverline{B}$ is always produced from the diquark-antidiquark $(qqensuremath{-}overline{q}overline{q})$ pair production between the original $({q}_{0}ensuremath{-}{overline{q}}_{0})$ jet pair. It is shown that the diquark model is more suitable for explaining the proton density at midrapidity compared to the default AP approach, which exhibits an unusual arrangement of peaks and dips in proton spectra at midrapidity. However, the hijing/diquark calculations are not consistent with proton diffraction peaks and the production of new particles. On the other hand, the BRDF effects implemented in hijing/AP are found to be more suited for the description of proton stopping observables in central $mathrm{Be}+mathrm{Be}$ collisions, while still producing the correct ${ensuremath{pi}}^{ifmmodepmelsetextpmfi{}}$ and ${K}^{ifmmodepmelsetextpmfi{}}$ $dN/dy$ and ${p}_{T}$ spectra at midrapidity for the entire range of SPS energies." @default.
• W4387188041 created "2023-09-30" @default.
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• W4387188041 date "2023-09-29" @default.
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• W4387188041 title "Probing the role of beam remnant diquark fragmentation in particle production in central <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:mmultiscripts><mml:mi>Be</mml:mi><mml:mprescripts /><mml:none /><mml:mn>7</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi>Be</mml:mi><mml:mprescripts /><mml:none /><mml:mn>9</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> collisions at energies available at the CERN Super Proton Synchrotron using the improved…" @default.
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• W4387188041 doi "https://doi.org/10.1103/physrevc.108.034912" @default.
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