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• W3136153014 abstract "Abstract The production of $$pi ^{pm }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>±</mml:mo> </mml:msup> </mml:math> , $$mathrm{K}^{pm }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mo>±</mml:mo> </mml:msup> </mml:math> , $$mathrm{K}^{0}_{S}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msubsup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:math> , $$mathrm{K}^{*}(892)^{0}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:msup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mrow> <mml:mrow /> <mml:mo>∗</mml:mo> </mml:mrow> </mml:msup> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:mn>892</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> <mml:mn>0</mml:mn> </mml:msup> </mml:mrow> </mml:math> , $$mathrm{p}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>p</mml:mi> </mml:math> , $$phi (1020)$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mi>ϕ</mml:mi> <mml:mo>(</mml:mo> <mml:mn>1020</mml:mn> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> , $$Lambda $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>Λ</mml:mi> </mml:math> , $$Xi ^{-}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mi>Ξ</mml:mi> <mml:mo>-</mml:mo> </mml:msup> </mml:math> , $$Omega ^{-}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mi>Ω</mml:mi> <mml:mo>-</mml:mo> </mml:msup> </mml:math> , and their antiparticles was measured in inelastic proton–proton (pp) collisions at a center-of-mass energy of $$sqrt{s}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 13 TeV at midrapidity ( $$|y|<0.5$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mo>|</mml:mo> <mml:mi>y</mml:mi> <mml:mo>|</mml:mo> <mml:mo><</mml:mo> <mml:mn>0.5</mml:mn> </mml:mrow> </mml:math> ) as a function of transverse momentum ( $$p_{mathrm{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> ) using the ALICE detector at the CERN LHC. Furthermore, the single-particle $$p_{mathrm{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> distributions of $$mathrm{K}^{0}_{S}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msubsup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> </mml:math> , $$Lambda $$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>Λ</mml:mi> </mml:math> , and $$overline{Lambda }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mover> <mml:mi>Λ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> in inelastic pp collisions at $$sqrt{s} = 7$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>7</mml:mn> </mml:mrow> </mml:math> TeV are reported here for the first time. The $$p_{mathrm{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> distributions are studied at midrapidity within the transverse momentum range $$0le p_{mathrm{T}}le 20$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:mn>0</mml:mn> <mml:mo>≤</mml:mo> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> <mml:mo>≤</mml:mo> <mml:mn>20</mml:mn> </mml:mrow> </mml:math> GeV/ c , depending on the particle species. The $$p_{mathrm{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> spectra, integrated yields, and particle yield ratios are discussed as a function of collision energy and compared with measurements at lower $$sqrt{s}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> and with results from various general-purpose QCD-inspired Monte Carlo models. A hardening of the spectra at high $$p_{mathrm{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> with increasing collision energy is observed, which is similar for all particle species under study. The transverse mass and $$x_{mathrm{T}}equiv 2p_{mathrm{T}}/sqrt{s}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mrow> <mml:msub> <mml:mi>x</mml:mi> <mml:mi>T</mml:mi> </mml:msub> <mml:mo>≡</mml:mo> <mml:mn>2</mml:mn> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> <mml:mo>/</mml:mo> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:mrow> </mml:math> scaling properties of hadron production are also studied. As the collision energy increases from $$sqrt{s}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 7–13 TeV, the yields of non- and single-strange hadrons normalized to the pion yields remain approximately constant as a function of $$sqrt{s}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> , while ratios for multi-strange hadrons indicate enhancements. The $$p_mathrm{{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> -differential cross sections of $$pi ^{pm }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>±</mml:mo> </mml:msup> </mml:math> , $$mathrm {K}^{pm }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mrow> <mml:mi>K</mml:mi> </mml:mrow> <mml:mo>±</mml:mo> </mml:msup> </mml:math> and $$mathrm {p}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>p</mml:mi> </mml:math> ( $$overline{mathrm{p}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mover> <mml:mi>p</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> ) are compared with next-to-leading order perturbative QCD calculations, which are found to overestimate the cross sections for $$pi ^{pm }$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>±</mml:mo> </mml:msup> </mml:math> and $$mathrm{p}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mi>p</mml:mi> </mml:math> ( $$overline{mathrm{p}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:mover> <mml:mi>p</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> ) at high $$p_mathrm{{T}}$$ <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML> <mml:msub> <mml:mi>p</mml:mi> <mml:mi>T</mml:mi> </mml:msub> </mml:math> ." @default.
• W3136153014 created "2021-03-29" @default.
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