cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.100595.v1/t2
title: "Figure 5" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K\pi$ invariant mass distributions after event-mixing background subtraction (open star symbols) and like-sign background subtraction with different daughter momentum cuts (0.2 &lt; Kaon and Pion p &lt; 10 GeV/$c$ for filled square symbols, 0.2 &lt; Kaon $p$ &lt; 0.7 GeV/$c$ and 0.2 &lt; Pion $p$ &lt; 10 GeV/$c$ for open triangle symbols) demonstrating the sources of the residual background in minimum bias Au+Au collisions. The open triangle symbols have been scaled up by a factor of 3 in order to increase the visibility. The arrow depicts the standard $K^{*0}$ mass of 896.1 MeV/$c^2$.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t3
title: "Figure 6" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K\pi$ invariant mass distribution integrated over the $K^*$ $p_T$ for central Au+Au (upper panel) and minimum bias $p + p$ (lower panel) interactions after the mixed-event background subtraction. The solid curves are the fits to Eq. 5 with $T_{fo}$ = 120 MeV and $p_T$ = 1.8 GeV/$c$ for central Au+Au and $T_{fo}$ = 160 MeV and $p_T$ = 0.8 GeV/$c$ for p+p, respectively. The dashed lines are the linear function representing the residual background.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t4
title: "Figure 7-1-1" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$ interactions and for central Au+Au collisions. The solid straight lines are the standard $K^{*0}$ mass (896.1 MeV/$c^2$ ) and width (50.7 MeV/$c^2$), respectively. The dashed and dotted curves are the MC results in minimum bias $p+p$ and for central Au+Au collisions, respectively, after considering detector effects and kinematic cuts. The grey shadows (caps) indicate the systematic uncertainties for the measurement in minimum bias $p + p$ interactions (central Au+Au collisions).
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t5
title: "Figure 7-1-2" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$ interactions and for central Au+Au collisions. The solid straight lines are the standard $K^{*0}$ mass (896.1 MeV/$c^2$ ) and width (50.7 MeV/$c^2$), respectively. The dashed and dotted curves are the MC results in minimum bias $p+p$ and for central Au+Au collisions, respectively, after considering detector effects and kinematic cuts. The grey shadows (caps) indicate the systematic uncertainties for the measurement in minimum bias $p + p$ interactions (central Au+Au collisions).
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t6
title: "Figure 7-2-1" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$ interactions and for central Au+Au collisions. The solid straight lines are the standard $K^{*0}$ mass (896.1 MeV/$c^2$ ) and width (50.7 MeV/$c^2$), respectively. The dashed and dotted curves are the MC results in minimum bias $p+p$ and for central Au+Au collisions, respectively, after considering detector effects and kinematic cuts. The grey shadows (caps) indicate the systematic uncertainties for the measurement in minimum bias $p + p$ interactions (central Au+Au collisions).
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t7
title: "Figure 7-2-2" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$ interactions and for central Au+Au collisions. The solid straight lines are the standard $K^{*0}$ mass (896.1 MeV/$c^2$ ) and width (50.7 MeV/$c^2$), respectively. The dashed and dotted curves are the MC results in minimum bias $p+p$ and for central Au+Au collisions, respectively, after considering detector effects and kinematic cuts. The grey shadows (caps) indicate the systematic uncertainties for the measurement in minimum bias $p + p$ interactions (central Au+Au collisions).
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t8
title: "Figure 8" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K_S^0\pi^\pm$ invariant mass distribution integrated over the $K^{*\pm}$ $p_T$ for minimum bias $p + p$ collisions (upper panel) and for the $50-80\%$ of the inelastic hadronic Au+Au crosssection (lower panel) after the mixed-event background subtraction. The solid curves are fits to Eq. 10 and the dashed lines are the linear function representing the residual background.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t10
title: "Figure 9-2" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ and $K^{*\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p + p$ and different centralities in Au+Au collisions.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t11
title: "Figure 9-3" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ and $K^{*\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p + p$ and different centralities in Au+Au collisions.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t12
title: "Figure 9-4" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $K^{*0}$ and $K^{*\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p + p$ and different centralities in Au+Au collisions.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t13
title: "Figure 10-1" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $(K^* + \bar{K^*})/2$ invariant yields as a function of $m_T − m_0$ for |y| &lt; 0.5 from minimum bias $p + p$ and different centralities in Au+Au collisions. The top $10\% $central data have been multiplied by two for clarity. The lines are fits to Eq. 12. The errors shown are the quadratic sum of statistical and systematic (in the level of $10\% $) uncertainties.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t14
title: "Figure 10-2" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $(K^* + \bar{K^*})/2$ invariant yields as a function of $m_T − m_0$ for |y| &lt; 0.5 from minimum bias $p + p$ and different centralities in Au+Au collisions. The top $10\% $central data have been multiplied by two for clarity. The lines are fits to Eq. 12. The errors shown are the quadratic sum of statistical and systematic (in the level of $10\% $) uncertainties.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2
DOI: 10.17182/hepdata.100595.v1/t15
title: "Figure 10-3" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: The $(K^* + \bar{K^*})/2$ invariant yields as a function of $m_T − m_0$ for |y| &lt; 0.5 from minimum bias $p + p$ and different centralities in Au+Au collisions. The top $10\% $central data have been multiplied by two for clarity. The lines are fits to Eq. 12. The errors shown are the quadratic sum of statistical and systematic (in the level of $10\% $) uncertainties.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2