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$K^*(892)^0$ and $ϕ(1020)$ production in Pb-Pb collisions at $\sqrt{s{NN}}$ = 2.76 TeV

The ALICE collaboration
Phys.Rev. C91 (2015) 024609, 2015

Abstract (data abstract)
CERN-LHC. The yields of the K*(892)0, anti-K*(892)0, and phi(1020) resonances are measured in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV through their hadronic decays using the ALICE detector. Throughout this paper, measurements for K*(892)0 and its antiparticle are combined and referred to using the symbol K*(892)0. The measurements are performed in multiple centrality intervals at mid-rapidity (|y| < 0.5) in the transverse-momentum ranges 0.3 < pT < 5 GeV for the K*(892)0 and 0.5 < pT < 5 GeV for the phi(1020). The K*(892)0 resonance is identified through its decays to charged pions and charged kaons, while the phi(1020) is identified through its decays to pairs of charged kaons. The decay product candidates are identified through measurements of their specific energy loss (dE/dx) in the ALICE TPC. The following measurements are reported: - transverse-momentum distributions in different centrality intervals - masses and widths as functions of transverse momentum - total dN/dy for |y| < 0.5 - pT-integrated K*(892)0/K- and phi(1020)/K- ratios - mean transverse momentum - pT-dependent Omega/phi(1020), (anti)proton/phi(1020), and phi(1020)/pi ratios - enhancement ratios of phi(1020) and Lambda - pT-integrated phi(1020)/pi ratios. UPDATE (27 JAN 2015): replaced Table 18, corresponding to Figure 5(c), with the final published values.

  • Table 1

    Data from Figure 4(a)

    10.17182/hepdata.66630.v1/t1

    Transverse-momentum distributions of (K*(892)0 + anti-K*(892)0)/2 in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-20.0%.

  • Table 2

    Data from Figure 4(a)

    10.17182/hepdata.66630.v1/t2

    Transverse-momentum distributions of (K*(892)0 + anti-K*(892)0)/2 in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 20.0-40.0%.

  • Table 3

    Data from Figure 4(a)

    10.17182/hepdata.66630.v1/t3

    Transverse-momentum distributions of (K*(892)0 + anti-K*(892)0)/2 in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 40.0-60.0%.

  • Table 4

    Data from Figure 4(a)

    10.17182/hepdata.66630.v1/t4

    Transverse-momentum distributions of (K*(892)0 + anti-K*(892)0)/2 in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 60.0-80.0%.

  • Table 5

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t5

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-5.0%.

  • Table 6

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t6

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 5.0-10.0%.

  • Table 7

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t7

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-10.0%.

  • Table 8

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t8

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 10.0-20.0%.

  • Table 9

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t9

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 20.0-30.0%.

  • Table 10

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t10

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 30.0-40.0%.

  • Table 11

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t11

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 40.0-50.0%.

  • Table 12

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t12

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 50.0-60.0%.

  • Table 13

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t13

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 60.0-70.0%.

  • Table 14

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t14

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 70.0-80.0%.

  • Table 15

    Data from Figure 4(b)

    10.17182/hepdata.66630.v1/t15

    Transverse-momentum distributions of phi(1020) mesons in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 80.0-90.0%.

  • Table 16

    Data from Figure 5(a)

    10.17182/hepdata.66630.v1/t16

    Mass of K*(892)0 mesons (combined with the antiparticle) as a function of pT for central (0-20%, first y column) and...

  • Table 17

    Data from Figure 5(b)

    10.17182/hepdata.66630.v1/t17

    Width of K*(892)0 mesons (combined with the antiparticle) as a function of pT for central (0-20%, first y column) and...

  • Table 18

    Data from Figure 5(c)

    10.17182/hepdata.66630.v1/t18

    Mass of phi(2010) mesons as a function of pT for central (0-10%, first y column) and peripheral (70-80%, second y...

  • Table 19

    Data from Figure 5(d)

    10.17182/hepdata.66630.v1/t19

    Width of phi(1020) mesons as a function of pT for central (0-10%, first y column) and peripheral (70-80%, second y...

  • Table 20

    Data from Paper Table 2

    10.17182/hepdata.66630.v1/t20

    Yield (dN/dy) of (K*(892)0 + anti-K*(892)0)/2 for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. In the table, the...

  • Table 21

    Data from Paper Table 2

    10.17182/hepdata.66630.v1/t21

    Yield (dN/dy) of phi(1020) mesons for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. In the table, the first...

  • Table 22

    Data from Paper Table 2, Figures 6, 7(a), and 7(b)

    10.17182/hepdata.66630.v1/t22

    Ratio of pT-integrated yields (K*(892)0 + anti-K*(892)0)/(2K-) for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. The K- yields...

  • Table 23

    Data from Paper Table 2, Figures 6, 7(c), and 7(d)

    10.17182/hepdata.66630.v1/t23

    Ratio of pT-integrated yields phi(1020)/K- for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. The K- yields are taken...

  • Table 24

    Data from Paper Table 2, Figures 8(a) and 9

    10.17182/hepdata.66630.v1/t24

    Mean transverse momentum of K*(892)0 mesons (combined with the antiparticle) for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV....

  • Table 25

    Data from Paper Table 2, Figures 8(b) and 9

    10.17182/hepdata.66630.v1/t25

    Mean transverse momentum of phi(1020) mesons for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. In the paper this...

  • Table 26

    Data from Figure 12

    10.17182/hepdata.66630.v1/t26

    pT-dependent ratio (Omega- + anti-Omega+)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-10.0%. The Omega pT distributions are taken from...

  • Table 27

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t27

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-10.0%.

  • Table 28

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t28

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 10.0-20.0%.

  • Table 29

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t29

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 20.0-40.0%.

  • Table 30

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t30

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 40.0-60.0%.

  • Table 31

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t31

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 60.0-80.0%.

  • Table 32

    Data from Figure 13(a)

    10.17182/hepdata.66630.v1/t32

    pT-dependent ratio (p + anti-p)/phi(1020) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 80.0-90.0%.

  • Table 33

    Data from Figure 13(b)

    10.17182/hepdata.66630.v1/t33

    pT-dependent ratio phi(1020)/(pi+ + pi-) in Pb-Pb collisions at sqrt(sNN)=2.76 TeV, centrality 0.0-10.0%.

  • Table 34

    Data from Figure 14(a)

    10.17182/hepdata.66630.v1/t34

    Enhancement ratio of phi(1020) for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. The enhancement ratio is the ratio...

  • Table 35

    Data from Figure 14(a)

    10.17182/hepdata.66630.v1/t35

    Enhancement ratio of Lambda for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. The enhancement ratio is the ratio...

  • Table 36

    Data from Figure 14(b)

    10.17182/hepdata.66630.v1/t36

    Ratio of pT-integrated yields phi(1020)/(pi+ + pi-) for different centrality intervals in Pb-Pb collisions at sqrt(sNN)=2.76 TeV. The charged pion...

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