cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.139722.v1/t22
title: "Additional Table 10" of "Search for the lepton-flavor violating decay of the Higgs boson and additional Higgs bosons in the e$\mu$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: The observed and expected 95% CL upper limits on $\sigma_{ggH,f_{VBF}}(p p \to X \to e \mu)$ and $\sigma_{VBF,f_{VBF}}(p p \to X \to e \mu)$ with $f_{VBF}$ = 0.9.
description: A search for the lepton-flavor violating decay of the Higgs boson and potential additional Higgs bosons with a mass from 110-160 $\mathrm{GeV}$ to an $e^{\pm}\mu^{\mp}$ pair is presented. The search is performed with a proton-proton collision data set at a center-of-mass energy of 13 $\mathrm{TeV}$ collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 $\mathrm{fb}^{-1}$. No excess is observed for the Higgs boson. The observed (expected) upper limit on the $e^{\pm}\mu^{\mp}$ branching fraction for it is determined to be $4.4\ (4.7)\times10^{-5}$ at 95% confidence level, the most stringent limit set thus far from direct searches. The largest excess of events over the expected background in the full mass range of the search is observed at an $e^{\pm}\mu^{\mp}$ invariant mass of approximately 146 $\mathrm{GeV}$ with a local (global) significance of 3.8 (2.8) standard deviations.
DOI: 10.17182/hepdata.139722.v1/t23
title: "Additional Table 11" of "Search for the lepton-flavor violating decay of the Higgs boson and additional Higgs bosons in the e$\mu$ final state in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

description: The observed and expected 95% CL upper limits on $\sigma_{ggH,f_{VBF}}(p p \to X \to e \mu)$ and $\sigma_{VBF,f_{VBF}}(p p \to X \to e \mu)$ with $f_{VBF}$ = 1.0.
description: A search for the lepton-flavor violating decay of the Higgs boson and potential additional Higgs bosons with a mass from 110-160 $\mathrm{GeV}$ to an $e^{\pm}\mu^{\mp}$ pair is presented. The search is performed with a proton-proton collision data set at a center-of-mass energy of 13 $\mathrm{TeV}$ collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 $\mathrm{fb}^{-1}$. No excess is observed for the Higgs boson. The observed (expected) upper limit on the $e^{\pm}\mu^{\mp}$ branching fraction for it is determined to be $4.4\ (4.7)\times10^{-5}$ at 95% confidence level, the most stringent limit set thus far from direct searches. The largest excess of events over the expected background in the full mass range of the search is observed at an $e^{\pm}\mu^{\mp}$ invariant mass of approximately 146 $\mathrm{GeV}$ with a local (global) significance of 3.8 (2.8) standard deviations.
DOI: 10.17182/hepdata.139746.v1/t2
title: "Table 2" of "Measurement of the J/$\psi$ polarization with respect to the event plane in Pb-Pb collisions at the LHC"

description: J/$\psi$ lambda_{\theta} parameter as a function of $\it{p}_{\rm{T}}$, measured for Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV, in the event plane reference frame in the rapidity interval $2.5
description: The polarization of inclusive J/$\psi$ produced in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC was studied by ALICE in the dimuon channel, via the measurement of the angular distribution of its decay products. The study was performed in the rapidity region $2.5
DOI: 10.17182/hepdata.139746.v1/t1
title: "Table 1" of "Measurement of the J/$\psi$ polarization with respect to the event plane in Pb-Pb collisions at the LHC"

description: J/$\psi$ lambda_{\theta} parameter as a function of the collision centrality, measured for Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV, in the event plane reference frame in the rapidity interval $2.5
description: The polarization of inclusive J/$\psi$ produced in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC was studied by ALICE in the dimuon channel, via the measurement of the angular distribution of its decay products. The study was performed in the rapidity region $2.5
DOI: 10.17182/hepdata.139746.v1/t3
title: "Table 3" of "Measurement of the J/$\psi$ polarization with respect to the event plane in Pb-Pb collisions at the LHC"

description: J/$\psi$ lambda_{\theta} parameter as a function of $\it{p}_{\rm{T}}$, measured for Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV, in the event plane reference frame in the rapidity interval $2.5
description: The polarization of inclusive J/$\psi$ produced in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC was studied by ALICE in the dimuon channel, via the measurement of the angular distribution of its decay products. The study was performed in the rapidity region $2.5
DOI: 10.17182/hepdata.139902.v1/t1
title: "Figure 2(a)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Directed flow of $\Xi^{-}$ and $\overline{\Xi}^{+}$ versus rapidity for 10-40\% Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t2
title: "Figure 2(b)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Directed flow of $\Omega^{-}$ and $\overline{\Omega}^{+}$ versus rapidity for 10-40\% Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t3
title: "Figure 2(c)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Directed flow of $\Xi^{-}$ and $\overline{\Xi}^{+}$ versus rapidity for 10-40\% Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 200$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t10
title: "Figure 4 (b,d)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Midrapidity $\Delta v_1$ slope versus $\Delta q$ (b) and $\Delta S$ (d) in 10-40\% Au+Au at 200 GeV (b, d). The red line is a linear fit through the origin, and the dashed blue line (labeled Pol1) is a linear fit allowing a non-zero intercept. Two points lie at $\Delta S=2$; one is displaced horizontally for clarity.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t11
title: "Figure 5 (a)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus rapidity (panel a) for ($\Delta q,\,\Delta S$)=(0,~0) in 40-80\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t4
title: "Figure 2(d)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Directed flow of $\Omega^{-}$ and $\overline{\Omega}^{+}$ versus rapidity for 10-40\% Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 200$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t5
title: "Figure 3 (a)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus rapidity (panel a) for ($\Delta q,\,\Delta S$)=(0,~0) in 10-40\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t6
title: "Figure 3 (b)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus rapidity (panel b) for ($\Delta q,\,\Delta S$)=(4/3,~2) in 10-40\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t7
title: "Figure 3 (c)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus $p_\mathrm{T}/n_q$ (panel c) for ($\Delta q,\,\Delta S$)=(0,~0) in 10-40\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t8
title: "Figure 3 (d)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus $p_\mathrm{T}/n_q$ (panel d) for ($\Delta q,\,\Delta S$)=(4/3,~2) in 10-40\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t9
title: "Figure 4 (a,c)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Midrapidity $\Delta v_1$ slope versus $\Delta q$ (a) and $\Delta S$ (c) in 10-40\% Au+Au at 27 GeV (a, c). The red line is a linear fit through the origin, and the dashed blue line (labeled Pol1) is a linear fit allowing a non-zero intercept. Two points lie at $\Delta S=2$; one is displaced horizontally for clarity.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t12
title: "Figure 5 (b)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus rapidity (panel b) for ($\Delta q,\,\Delta S$)=(4/3,~2) in 40-80\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t13
title: "Figure 5 (c)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus $p_\mathrm{T}/n_q$ (panel c) for ($\Delta q,\,\Delta S$)=(0,~0) in 40-80\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t14
title: "Figure 5 (d)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: $\Delta v_1$ versus $p_\mathrm{T}/n_q$ (d) for ($\Delta q,\,\Delta S$)=(4/3,~2) in 40-80\% Au+Au at $\sqrt{s_{\mathrm{NN}}}=27$ GeV.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t15
title: "Figure 6 (a,c)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Midrapidity $\Delta v_1$ slope versus $\Delta q$ (a) and $\Delta S$ (c) in 40-80\% Au+Au at 27 GeV (a, c). The red line is a linear fit through the origin, and the dashed blue line (labeled Pol1) is a linear fit allowing a non-zero intercept. Two points lie at $\Delta S=2$; one is displaced horizontally for clarity.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.
DOI: 10.17182/hepdata.139902.v1/t16
title: "Figure 6 (b,d)" of "Electric charge and strangeness-dependent directed flow splitting of produced quarks in Au+Au collisions"

description: Midrapidity $\Delta v_1$ slope versus $\Delta q$ (b) and $\Delta S$ (d) in 40-80\% Au+Au at 200 GeV (b, d). The red line is a linear fit through the origin, and the dashed blue line (labeled Pol1) is a linear fit allowing a non-zero intercept. Two points lie at $\Delta S=2$; one is displaced horizontally for clarity.
description: STAR’s measurements of directed flow ($v_1$) splitting using produced particles $K^{-}$, $\bar{p}$, $\bar{\Lambda}$, $\phi$, $\overline{\Xi}^{+}$, ${\Omega}^{-}$ and $\overline{\Omega}^{+}$, none of whose constituent quarks is transported from the colliding nuclei. Measurements are done in $Au + Au$ collisions at $\sqrt{s_{NN}} = 27$ GeV and $\sqrt{s_{NN}} = 200$ GeV. For 10-40\% centrality, we examine quark coalescence behavior for particle combinations with identical quark content, and search for any departure from this behavior (``splitting'') for combinations having non-identical quark content. Under the assumption of quark coalescence for produced quarks, the splitting strength appears to increase with the electric charge difference of the constituent quarks in the combinations, consistent with electromagnetic effect expectations.