Measurement of $${{mathrm{D}}^0}$$ D 0 , $${{mathrm{D}}^+}$$ D + , $${{mathrm{D}}^{*+}}$$ D ∗ + and $${{mathrm{D}}^+_{mathrm{s}}}$$ D s + production in pp collisions at $${sqrt{{ extit{s}}}~=~5.02~{ ext {TeV}}}$$ s = 5.02 TeV with ALICE
The European Physical Journal C(2019)
摘要
The measurements of the production of prompt
$${{\mathrm{D}}^0}$$
,
$${{\mathrm{D}}^+}$$
,
$${{\mathrm{D}}^{*+}}$$
, and
$${{\mathrm{D}}^+_{\mathrm{s}}}$$
mesons in proton–proton (pp) collisions at
$$\sqrt{s}=5.02~\mathrm {TeV}$$
with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity (
$$|y|<0.5$$
) via their hadronic decay channels
$$\mathrm{D}^0 \rightarrow {\mathrm{K}}^-\pi ^+$$
,
$$\mathrm{D}^+\rightarrow {\mathrm{K}}^-\pi ^+\pi ^+$$
,
$${\mathrm{D}}^{*+} \rightarrow {\mathrm{D}}^0 \pi ^+ \rightarrow {\mathrm{K}}^- \pi ^+ \pi ^+$$
,
$${{\mathrm{D}}^{+}_{\mathrm{s}}\rightarrow \phi \pi ^+\rightarrow {\mathrm{K}}^{+} {\mathrm{K}}^{-} \pi ^{+}}$$
, and their charge conjugates. The production cross sections were measured in the transverse momentum interval
$$0更多
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