Fig. 1.

a Comparison of the transverse momentum spectrum ${\mathrm{d}}^{2}N/(\mathrm{d}{p}_{\mathrm{T}}\mathrm{d}y)$ of $\mathit{\varphi }$-meson in non-single-diffractive (NSD) $\text{p--Pb}$ events, reconstructed via the decay channel into ${\mathrm{K}}^{+}$ ${\mathrm{K}}^{-}$ by exploiting three different strategies for K identification: TPC only, TPC-TOF and no-PID. The reader can refer to Sect. 3.1 for details on the PID selection and to Sect. 3.2 for a description of the signal extraction procedure. The uncertainties are the sum in quadrature of statistical and systematic. A Lévy–Tsallis function (see Eq. 1) is used to fit the TPC-TOF spectrum in 0.3 $<$ $p_{\mathrm{T}}$ $<$ 10 $\mathrm{GeV}/c$. b Ratio of each spectrum to the fit function, showing good agreement of the three PID strategies within uncertainties