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Hadronic resonance production in d+Au collisions at s(NN)**(1/2) = 200-GeV at RHIC

The STAR collaboration
Phys.Rev.C 78 (2008) 044906, 2008.

Abstract
We present the first measurements of the $\rho(770)^0$, $K^*$(892), $\Delta$(1232)$^{++}$, $\Sigma$(1385), and $\Lambda$(1520) resonances in $d$+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV, reconstructed via their hadronic decay channels using the STAR detector at RHIC. The masses and widths of these resonances are studied as a function of transverse momentum ($p_T$). We observe that the resonance spectra follow a generalized scaling law with the transverse mass ($m_T$). The $<p_T>$ of resonances in minimum bias collisions is compared to the $<p_T>$ of $\pi$, $K$, and $\bar{p}$. The $\rho^0/\pi^-$, $K^*/K^-$, $\Delta^{++}/p$, $\Sigma(1385)/\Lambda$, and $\Lambda(1520)/\Lambda$ ratios in $d$+Au collisions are compared to the measurements in minimum bias $p+p$ interactions, where we observe that both measurements are comparable. The nuclear modification factors ($R_{dAu}$) of the $\rho^0$, $K^*$, and $\Sigma^*$ scale with the number of binary collisions ($N_{bin}$) for $p_T >$ 1.2 GeV/$c$.

  • Table for Figure 2

    10.17182/hepdata.97116.v1/t1

    rho0 reconstruction efficiency times detector acceptance as a function of the invariant mass for minimum bias d+Au. The error shown...

  • Table for Figure 3 K*0

    10.17182/hepdata.97116.v1/t2

    K*0 reconstruction efficiency times detector acceptance as a function of pT for minimum bias d+Au and three different centralities.

  • Table for Figure 3 K*+-

    10.17182/hepdata.97116.v1/t3

    K*+- reconstruction efficiency times detector acceptance as a function of pT for minimum bias d+Au and three different centralities.

  • Table for Figure 4 d+Au

    10.17182/hepdata.97116.v1/t4

    Delta++ reconstruction efficiency times detector acceptance as a function of the invariant mass for minimum bias d+Au collisions. The error...

  • Table for Figure 4 p+p

    10.17182/hepdata.97116.v1/t5

    Delta++ reconstruction efficiency times detector acceptance as a function of the invariant mass for p+p collisions. The error shown is...

  • Table for Figure 5

    10.17182/hepdata.97116.v1/t6

    Lambda* reconstruction efficiency times detector acceptance as a function of pT for minimum bias d+Au collisions. The error shown is...

  • Table for Figure 6 (Minimum Bias)

    10.17182/hepdata.97116.v1/t7

    Sigma*+- reconstruction efficiency times detector acceptance as a function of pT for minimum bias d+Au collisions. The error shown is...

  • Table for Figure 6 (40-100% centratlity)

    10.17182/hepdata.97116.v1/t8

    Sigma*+- reconstruction efficiency times detector acceptance as a function of pT for d+Au at 40-100% centrality. The error shown is...

  • Table for Figure 6 (20-40% centratlity)

    10.17182/hepdata.97116.v1/t9

    Sigma*+- reconstruction efficiency times detector acceptance as a function of pT for d+Au at 20-40% centrality . The error shown...

  • Table for Figure 6 (0-20% centratlity)

    10.17182/hepdata.97116.v1/t10

    Sigma*+- reconstruction efficiency times detector acceptance as a function of pT for d+Au at 0-20% centrality . The error shown...

  • Table for Figure 7

    10.17182/hepdata.97116.v1/t11

    Raw pi+pi- invariant mass distribution at midrapidity after subtraction of the like-sign reference distribution for minimum bias d+Au collisions with...

  • Table for Figure 8a (d+Au 0-20 % centrality)

    10.17182/hepdata.97116.v1/t12

    rho0 mass as a function of pT at |y| < 0.5 for d+A at 0-20 % centrality.

  • Table for Figure 8a (d+Au 20-40 % centrality)

    10.17182/hepdata.97116.v1/t13

    rho0 mass as a function of pT at |y| < 0.5 for d+A at 20-40 % centrality.

  • Table for Figure 8a (d+Au 40-100 % centrality)

    10.17182/hepdata.97116.v1/t14

    rho0 mass as a function of pT at |y| < 0.5 for d+A at 40-100 % centrality.

  • Table for Figure 8a ( Minimum bias d+Au )

    10.17182/hepdata.97116.v1/t15

    rho0 mass as a function of pT at |y| < 0.5 for minimum bias d+A collisions.

  • Table for Figure 8b ( p+p )

    10.17182/hepdata.97116.v1/t16

    rho0 mass as a function of pT at |y| < 0.5 for p+p collisions.

  • Table for Figure 8b ( High multiplicity p+p )

    10.17182/hepdata.97116.v1/t17

    rho0 mass as a function of pT at |y| < 0.5 for high multiplicity p+p collisions.

  • Table for Figure 8b ( Minimum bias d+Au)

    10.17182/hepdata.97116.v1/t18

    rho0 mass as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 9

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    Invariant pi+pi- mass distribution after background subtraction for minimum bias p+p collisions measured by NA27.

  • Table for Figure 10a

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    Mixed-event background subtracted K pi raw invariant mass distribution for a particular K*0 pT bin at |y| < 0.5 for...

  • Table for Figure 10b

    10.17182/hepdata.97116.v1/t21

    Mixed-event background subtracted KS*0 pi raw invariant mass distribution integrated over nvariant mass distribution for a particular K*+- pT bin...

  • Table for Figure 11a K*0

    10.17182/hepdata.97116.v1/t22

    K*0 mass as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 11a K*+-

    10.17182/hepdata.97116.v1/t23

    K*+- mass as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 11b K*0

    10.17182/hepdata.97116.v1/t24

    K*0 width as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 11b K*+-

    10.17182/hepdata.97116.v1/t25

    K*+- width as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 12a

    10.17182/hepdata.97116.v1/t26

    Mixed-event background subtracted p pi raw invariant mass distribution for a particular pT bin at |y| < 0.5 for minimum...

  • Table for Figure 12b

    10.17182/hepdata.97116.v1/t27

    Mixed-event background subtracted p pi raw invariant mass distribution for a particular pT bin at |y| < 0.5 for minimum...

  • Table for Figure 13a

    10.17182/hepdata.97116.v1/t28

    Delta++ mass as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 13b

    10.17182/hepdata.97116.v1/t29

    Delta++ width as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 14a

    10.17182/hepdata.97116.v1/t30

    Delta++ mass as a function of pT at |y| < 0.5 for minimum bias p+p collisions.

  • Table for Figure 14b

    10.17182/hepdata.97116.v1/t31

    Delta++ width as a function of pT at |y| < 0.5 for minimum bias p+p collisions.

  • Table for Figure 15

    10.17182/hepdata.97116.v1/t32

    Mixed-event background subtracted Lambda pi raw invariant mass distribution integrated over the Sigma* pT at |y| < 0.5 for minimum...

  • Table for Figure 16

    10.17182/hepdata.97116.v1/t33

    Mixed-event background subtracted p K raw invariant mass distribution integrated over the Lambda* pT at |y| < 0.5 for minimum...

  • Table for Figure 17

    10.17182/hepdata.97116.v1/t34

    Sigma* mass as a function of pT at |y| < 0.75 for minimum bias d+Au collisions.

  • Table for Figure 18

    10.17182/hepdata.97116.v1/t35

    Lambda* mass as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 19

    10.17182/hepdata.97116.v1/t36

    Lambda* width as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 20 40-100%

    10.17182/hepdata.97116.v1/t37

    rho0 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 40-100% centrality.

  • Table for Figure 20 20-40%

    10.17182/hepdata.97116.v1/t38

    rho0 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 20-40% centrality.

  • Table for Figure 20 0-20%

    10.17182/hepdata.97116.v1/t39

    rho0 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 0-20% centrality.

  • Table for Figure 20 minimum bias

    10.17182/hepdata.97116.v1/t40

    rho0 invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 21 minimum bias K*0

    10.17182/hepdata.97116.v1/t41

    (K*0+K*0bar)/2 invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 21 0-20% K*0

    10.17182/hepdata.97116.v1/t42

    (K*0+K*0bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 0-20% centrality.

  • Table for Figure 21 20-40% K*0

    10.17182/hepdata.97116.v1/t43

    (K*0 + K*0bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 20-40% centrality.

  • Table for Figure 21 40-100% K*0

    10.17182/hepdata.97116.v1/t44

    (K*0 + K*0bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 40-100% centrality.

  • Table for Figure 21 minimum bias K*+-

    10.17182/hepdata.97116.v1/t45

    (K*+ + K*-)/2 invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 21 0-20% K*+-

    10.17182/hepdata.97116.v1/t46

    (K*+ +K*-)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 0-20% centrality.

  • Table for Figure 21 20-40% K*+-

    10.17182/hepdata.97116.v1/t47

    (K*+ +K*-)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 20-40% centrality.

  • Table for Figure 21 40-100% K*+-

    10.17182/hepdata.97116.v1/t48

    (K*+ +K*-)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 40-100% centrality.

  • Table for Figure 22 minimum bias

    10.17182/hepdata.97116.v1/t49

    (Delta++ + Delta--bar)/2 invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 22 0-20%

    10.17182/hepdata.97116.v1/t50

    (Delta++ + Delta--bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 0-20% centrality.

  • Table for Figure 22 20-40%

    10.17182/hepdata.97116.v1/t51

    (Delta++ + Delta--bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 20-40% centrality.

  • Table for Figure 22 40-100%

    10.17182/hepdata.97116.v1/t52

    (Delta++ + Delta--bar)/2 invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 40-100% centrality.

  • Table for Figure 22 minimum bias p+p

    10.17182/hepdata.97116.v1/t53

    (Delta++ + Delta--bar)/2 invariant yields as a function of pT at |y| < 0.5 for minimum bias p+p collisions. The...

  • Table for Figure 23 minimum bias

    10.17182/hepdata.97116.v1/t54

    Sigma* invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 23 0-20%

    10.17182/hepdata.97116.v1/t55

    Sigma* invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 0-20% centrality.

  • Table for Figure 23 20-40%

    10.17182/hepdata.97116.v1/t56

    Sigma* invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 20-40% centrality.

  • Table for Figure 23 40-100%

    10.17182/hepdata.97116.v1/t57

    Sigma* invariant yields as a function of pT at |y| < 0.5 for d+Au collisions at 40-100% centrality.

  • Table for Figure 24

    10.17182/hepdata.97116.v1/t58

    Lambda* invariant yields as a function of pT at |y| < 0.5 for minimum bias d+Au collisions.

  • Table for Figure 25 pi

    10.17182/hepdata.97116.v1/t59

    Rescaled spectra of pion minimum bias d+Au.

  • Table for Figure 25 p

    10.17182/hepdata.97116.v1/t60

    Rescaled spectra of p minimum bias d+Au.

  • Table for Figure 25 rho0

    10.17182/hepdata.97116.v1/t61

    Rescaled spectra of rho0 minimum bias d+Au.

  • Table for Figure 25 K*

    10.17182/hepdata.97116.v1/t62

    Rescaled spectra of K* minimum bias d+Au.

  • Table for Figure 25 Delta

    10.17182/hepdata.97116.v1/t63

    Rescaled spectra of Delta minimum bias d+Au.

  • Table for Figure 25 Sigma*

    10.17182/hepdata.97116.v1/t64

    Rescaled spectra of Sigma* minimum bias d+Au.

  • Table for Figure 25 Lambda*

    10.17182/hepdata.97116.v1/t65

    Rescaled spectra of Lambda* minimum bias d+Au.

  • Table for Figure 26 pi

    10.17182/hepdata.97116.v1/t66

    pion as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 26 p

    10.17182/hepdata.97116.v1/t67

    proton as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 26 K

    10.17182/hepdata.97116.v1/t68

    K as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 26 rho0

    10.17182/hepdata.97116.v1/t69

    rho0 as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 26 K*

    10.17182/hepdata.97116.v1/t70

    K* as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 pi

    10.17182/hepdata.97116.v1/t71

    pion as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 p

    10.17182/hepdata.97116.v1/t72

    proton as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 K

    10.17182/hepdata.97116.v1/t73

    K as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 Delta++

    10.17182/hepdata.97116.v1/t74

    Delta++ as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 Sigma*

    10.17182/hepdata.97116.v1/t75

    Sigma* as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 27 Lambda*

    10.17182/hepdata.97116.v1/t76

    Lambda* as a function of < dNch > /deta for minimum bias p+p, minimum bias d+Au, and 0-20%, 20-40%, 40-100%...

  • Table for Figure 29

    10.17182/hepdata.97116.v1/t77

    rho0/pi ratios in p+p, various centralities in d+Au, and in peripheral Au+Au collisions as a function of dNch/deta. The errors...

  • Table for Figure 30

    10.17182/hepdata.97116.v1/t78

    K*/k- ratios in p+p, various centralities in d+Au and Au+Au collisions as a function of dNch/deta. The errors shown are...

  • Table for Figure 31

    10.17182/hepdata.97116.v1/t79

    Delta++/p ratios in p+p, various centralities in d+Au as a function of dNch/deta. The errors shown are the quadratic sum...

  • Table for Figure 32

    10.17182/hepdata.97116.v1/t80

    Sigma*/Lambda ratios in p+p, various centralities in d+Au, and in central Au+Au collisions as a function of dNch/deta. The errors...

  • Table for Figure 33

    10.17182/hepdata.97116.v1/t81

    Lambda*/Lambda ratios in p+p, minimum bias d+Au, and two different centralities in Au+Au collisions as a function of dNch/deta. The...

  • Table for Figure 34 Delta++/p

    10.17182/hepdata.97116.v1/t82

    Delta++/p ratios normalized by their ratio measured in p+p collisions at the same beam energy as a function of dNch/deta....

  • Table for Figure 34 K*/K-

    10.17182/hepdata.97116.v1/t83

    K*/K- ratios normalized by their ratio measured in p+p collisions at the same beam energy as a function of dNch/deta....

  • Table for Figure 34 rho0/pi-

    10.17182/hepdata.97116.v1/t84

    rho0/pi- ratios normalized by their ratio measured in p+p collisions at the same beam energy as a function of dNch/deta....

  • Table for Figure 34 Lambda*/Lambda

    10.17182/hepdata.97116.v1/t85

    Lambda*/Lambda ratios normalized by their ratio measured in p+p collisions at the same beam energy as a function of dNch/deta....

  • Table for Figure 34 Sigma*/Lambda

    10.17182/hepdata.97116.v1/t86

    Sigma*/Lambda ratios normalized by their ratio measured in p+p collisions at the same beam energy as a function of dNch/deta....

  • Table for Figure 35 pi

    10.17182/hepdata.97116.v1/t87

    RdAu for pion.

  • Table for Figure 35 charged hadrons.

    10.17182/hepdata.97116.v1/t88

    RdAu for charged hadrons.

  • Table for Figure 35 rho0

    10.17182/hepdata.97116.v1/t89

    RdAu for charged rho0.

  • Table for Figure 36 pi

    10.17182/hepdata.97116.v1/t90

    RdAu for pion.

  • Table for Figure 36 charged hadrons

    10.17182/hepdata.97116.v1/t91

    RdAu for charged hadrons.

  • Table for Figure 36 K*0

    10.17182/hepdata.97116.v1/t92

    RdAu for charged K*0.

  • Table for Figure 36 K*+-

    10.17182/hepdata.97116.v1/t93

    RdAu for charged K*+-.

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