• Browse all
Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in $p^\uparrow+p$ at $\sqrt{s}=200$ GeV

The STAR collaboration
Phys.Rev.Lett. 115 (2015) 242501, 2015.

Abstract (data abstract)
BNL-RHIC. We report the observation of transverse polarization-dependent azimuthal correlations in charged pion pair production with the STAR experiment in $p^\uparrow+p$ collisions at RHIC. These correlations directly probe quark transversity distributions. We measure signals in excess of five standard deviations at high transverse momenta, at high pseudorapidities eta>0.5, and for pair masses around the mass of the rho-meson. This is the first direct transversity measurement in p+p collisions. Comparing the results to data from lepton-nucleon scattering will test the universality of these spin-dependent quantities.

  • Table 1

    Data from Table 1

    10.17182/hepdata.73282.v1/t1

    $p_T$ asymmetries, $\eta$ < 0, maximum opening angle of 0.2.

  • Table 2

    Data from Table 2

    10.17182/hepdata.73282.v1/t2

    $<M_{inv}>$ asymmetries, $\eta$ < 0, maximum opening angle of 0.2.

  • Table 3

    Data from Table 3

    10.17182/hepdata.73282.v1/t3

    $p_T$ asymmetries, $\eta$ > 0, maximum opening angle 0.2.

  • Table 4

    Data from Table 4

    10.17182/hepdata.73282.v1/t4

    $<M_{inv}>$ asymmetries, $\eta$ > 0, maximum opening angle 0.2.

  • Table 5

    Data from Table 5

    10.17182/hepdata.73282.v1/t5

    $p_T$ asymmetries, $\eta$ < 0, maximum opening angle 0.3.

  • Table 6

    Data from Table 6

    10.17182/hepdata.73282.v1/t6

    $<M_{inv}>$ asymmetries, $\eta$ < 0, maximum opening angle 0.3.

  • Table 7

    Data from Table 7

    10.17182/hepdata.73282.v1/t7

    $p_T$ asymmetries, $\eta$ > 0,maximum opening angle 0.3.

  • Table 8

    Data from Table 8

    10.17182/hepdata.73282.v1/t8

    $<M_{inv}>$ asymmetries, $\eta$ > 0, maximum opening angle 0.3.

  • Table 9

    Data from Table 9

    10.17182/hepdata.73282.v1/t9

    $p_T$ asymmetries, $\eta$ < 0, maximum opening angle 0.4.

  • Table 10

    Data from Table 10

    10.17182/hepdata.73282.v1/t10

    $<M_{inv}>$ asymmetries, $\eta$ < 0, maximum opening angle 0.4.

  • Table 11

    Data from Table 11

    10.17182/hepdata.73282.v1/t11

    $p_T$ asymmetries, $\eta$ > 0, maximum opening angle 0.4.

  • Table 12

    Data from Table 12

    10.17182/hepdata.73282.v1/t12

    $<M_{inv}>$ asymmetries, $\eta$ > 0, maximum opening angle 0.4.

  • Table 13

    Data from Table 13

    10.17182/hepdata.73282.v1/t13

    $\eta$ asymmetries, maximum opening angle 0.2.

  • Table 14

    Data from Table 14

    10.17182/hepdata.73282.v1/t14

    $\eta$ asymmetries, maximum opening angle 0.3.

  • Table 15

    Data from Table 15

    10.17182/hepdata.73282.v1/t15

    $\eta$ asymmetries, maximum opening angle 0.4.

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.