1 Ocak 2022 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1016/j.physletb.2022.137013", 
  "abstract": "<p>The first results on K$^{\u204e}$(892)$^{\u00b1}$ resonance production in inelastic pp collisions at LHC energies of $\\sqrt{s}=5.02$, 8, and 13 TeV are presented. The K$^{\u204e}$(892)$^{\u00b1}$ has been reconstructed via its hadronic decay channel ${K}^{\u204e}$(892)${}^{\u00b1}\\to {K}_{S}^{0}+{\\pi }^{\u00b1}$ with the ALICE detector. Measurements of transverse momentum distributions, ${p}_{T}$-integrated yields, and mean transverse momenta for charged K$^{\u204e}$(892) are found to be consistent with previous ALICE measurements for neutral K$^{\u204e}$(892) within uncertainties. For ${p}_{T}&gt;1$ GeV/c the K$^{\u204e}$(892)$^{\u00b1}$ transverse momentum spectra become harder with increasing centre-of-mass energy from 5.02 to 13 TeV, similar to what previously observed for charged kaons and pions. For ${p}_{T}&lt;1$ GeV/c the K$^{\u204e}$(892)$^{\u00b1}$ yield does not evolve significantly and the abundance of K$^{\u204e}$(892)$^{\u00b1}$ relative to K is rather independent of the collision energy. The transverse momentum spectra, measured for K$^{\u204e}$(892)$^{\u00b1}$ at midrapidity in the interval 0 &lt; ${p}_{T}&lt;15$ GeV/c, are not well described by predictions of different versions of PYTHIA 6, PYTHIA 8 and EPOS-LHC event generators. These generators reproduce the measured ${p}_{T}$-integrated K$^{\u204e\u00b1}$/K ratios and describe well the momentum dependence for ${p}_{T}&lt;2$ GeV/c.</p>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physics Letters B", 
  "id": "262777", 
  "issued": {
    "date-parts": [
      [
        2022, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Measurement of K (892) production in inelastic pp collisions at the LHC", 
  "type": "article-journal", 
  "volume": "828 C"
}