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Production of K$^{*}$ (892)$^{0}$ and $\phi $ (1020) in p–Pb collisions at $\sqrt{s_{{\text {NN}}}}$ = 5.02 TeV

The ALICE collaboration
Eur.Phys.J. C76 (2016) 245, 2016

Abstract (data abstract)
CERN-LHC. The production of K$^{*}$(892)$^{0}$ and $\phi$(1020) mesons has been measured in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV. K$^{*0}$ and $\phi$ are reconstructed via their decay into charged hadrons with the ALICE detector in the rapidity range $-0.5 < y <0$. The transverse momentum spectra, measured as a function of the multiplicity, have p$_{\mathrm{T}}$ range from 0 to 15 GeV/$c$ for K$^{*0}$ and from 0.3 to 21 GeV/$c$ for $\phi$. Integrated yields, mean transverse momenta and particle ratios are reported and compared with results in pp collisions at $\sqrt{s}$ = 7 TeV and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV. In Pb-Pb and p-Pb collisions, K$^{*0}$ and $\phi$ probe the hadronic phase of the system and contribute to the study of particle formation mechanisms by comparison with other identified hadrons. For this purpose, the mean transverse momenta and the differential proton-to-$\phi$ ratio are discussed as a function of the multiplicity of the event. The short-lived K$^{*0}$ is measured to investigate re-scattering effects, believed to be related to the size of the system and to the lifetime of the hadronic phase.

  • Table 1

    Data from Table 1

    10.17182/hepdata.72720.v1/t1

    Average charged particle pseudo-rapidity density, $\langle\mathrm{d}N_{\rm ch}/\mathrm{d}\eta_{\mathrm{lab}}\rangle$, measured at mid-rapidity in visible cross section event classes and average number of...

  • Table 2

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t2

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (NSD). Additional systematic error: +- 3.1%...

  • Table 3

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t3

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (0-20% multiplicity class).

  • Table 4

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t4

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (20-40% multiplicity class).

  • Table 5

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t5

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (40-60% multiplicity class).

  • Table 6

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t6

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (60-80% multiplicity class).

  • Table 7

    Data from Figure 4(a)

    10.17182/hepdata.72720.v1/t7

    $p_{\rm T}$-differential yield of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (80-100multiplicity class).

  • Table 8

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t8

    $p_{\rm T}$-differential invariant yield of $phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (NSD). Additional systematic error: +- 3.1% (normalization).

  • Table 9

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t9

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (0-5% multiplicity class).

  • Table 10

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t10

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (5-10% multiplicity class).

  • Table 11

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t11

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (10-20% multiplicity class).

  • Table 12

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t12

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (20-40% multiplicity class).

  • Table 13

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t13

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (40-60% multiplicity class).

  • Table 14

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t14

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (60-80% multiplicity class).

  • Table 15

    Data from Figure 4(b)

    10.17182/hepdata.72720.v1/t15

    $p_{\rm T}$-differential yield of $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (80-100% multiplicity class).

  • Table 16

    Data from Table 3(upper)

    10.17182/hepdata.72720.v1/t16

    $p_{\rm T}$-integrated yield d$N$/d$y$ of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV. Yields are normalised to the...

  • Table 17

    Data from Table 3(upper)

    10.17182/hepdata.72720.v1/t17

    Mean $p_{\rm T}$ of (K$^{*0}$ + $\overline{K^{*0}}$)/2 in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV for each V0A multiplicity event class.

  • Table 18

    Data from Table 3(lower)

    10.17182/hepdata.72720.v1/t18

    $p_{\rm T}$-integrated yield d$N$/d$y$ of $phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV. Yields are normalised to the visible cross...

  • Table 19

    Data from Table 3(lower)

    10.17182/hepdata.72720.v1/t19

    Mean $p_{\rm T}$ of $phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV for each V0A multiplicity event class.

  • Table 20

    Data from Figure 7

    10.17182/hepdata.72720.v1/t20

    Mean $p_{\rm T}$ as function of the mass for particles measured with the ALICE detector in INEL pp collisions at...

  • Table 21

    Data from Figure 7

    10.17182/hepdata.72720.v1/t21

    Mean $p_{\rm T}$ as function of the mass for particles measured with the ALICE detector in 0-20% p-Pb collisions at...

  • Table 22

    Data from Figure 8

    10.17182/hepdata.72720.v1/t22

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (0-5$\%$ multiplicity...

  • Table 23

    10.17182/hepdata.72720.v1/t23

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (5-10% multiplicity...

  • Table 24

    10.17182/hepdata.72720.v1/t24

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (10-20% multiplicity...

  • Table 25

    10.17182/hepdata.72720.v1/t25

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (20-40% multiplicity...

  • Table 26

    10.17182/hepdata.72720.v1/t26

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (40-60% multiplicity...

  • Table 27

    10.17182/hepdata.72720.v1/t27

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (60-80% multiplicity...

  • Table 28

    Data from Figure 8

    10.17182/hepdata.72720.v1/t28

    Ratio of $p_{\rm T}$-differential yields of (p + $\bar{p}$) and $\phi$ in p-Pb collisions with centre-of-mass energy/nucleon=5.02 TeV (80-100% multiplicity...

  • Table 29

    Data from Table 4 (upper)

    10.17182/hepdata.72720.v1/t29

    Ratio of $p_{\rm T}$-integrated yields of $(K^{*0}+\overline{K^{*0}})$ to long lived hadrons for different V0A multiplicity classes in p-Pb collisions with...

  • Table 30

    Data from Table 4 (lower)

    10.17182/hepdata.72720.v1/t30

    Ratio of $p_{\rm T}$-integrated yields of 2$\phi$ to long lived hadrons for different V0A multiplicity classes in p-Pb collisions with...

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