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Measurements of the $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S) differential cross sections in pp collisions at $\sqrt{s} =$ 7 TeV

The CMS collaboration
Phys.Lett. B749 (2015) 14-34, 2015

Abstract (data abstract)
CERN-LHC. Differential cross sections as a function of transverse momentum $p_\mathrm{T}$ are presented for the production of $\Upsilon(n\mathrm{S})$ ($n$ = 1, 2, 3) states decaying into a pair of muons. Data corresponding to an integrated luminosity of 4.9 fb$^{-1}$ in pp collisions at $\sqrt{s}$ = 7 TeV were collected with the CMS detector at the LHC. The analysis selects events with dimuon absolute rapidity $y$ lower than 1.2 and dimuon transverse momentum in the range of $p_\mathrm{T} $ between 10 and 100 GeV. The measurements show a transition from an exponential to a power-law behavior at $p_\mathrm{T} \approx 20$ GeV for the three $\Upsilon$ states. Above that transition, the $\Upsilon(3\mathrm{S})$ spectrum is significantly harder than that of the $\Upsilon(1\mathrm{S})$ and $\Upsilon(2\mathrm{S})$. The ratios of the $\Upsilon(3\mathrm{S})$ and $\Upsilon(2\mathrm{S})$ differential cross sections to the $\Upsilon(1\mathrm{S})$ cross section show a rise as $p_\mathrm{T}$ increases at low $p_\mathrm{T}$, then become flatter at higher $p_\mathrm{T}$ The tables below list the results of $\Upsilon$(1S), $\Upsilon$(2S) and $\Upsilon$(3S) differential cross sections (SIG) times dimuon branching fraction (B) in three rapidity bins, and ratios thereof. The $\Upsilon$(nS) polarizations measured by CMS are taken as input. The cross sections for different polarization scenarios may be obtained using the corresponding acceptance tables that are also provided below.

  • Table 1

    Data from Table 1

    10.17182/hepdata.64486.v1/t1

    The $p_{\rm T}$ bin width, the weighted mean $p_{\rm T}$ within a bin, and the differential cross section times the...

  • Table 2

    Data from Table 2

    10.17182/hepdata.64486.v1/t2

    The $p_{\rm T}$ bin width, the weighted mean $p_{\rm T}$ within a bin, and the differential cross section times the...

  • Table 3

    Data from Table 3

    10.17182/hepdata.64486.v1/t3

    The $p_{\rm T}$ bin width, the weighted mean $p_{\rm T}$ within a bin, and the differential cross section times the...

  • Table 4

    Data from Table 4

    10.17182/hepdata.64486.v1/t4

    The $p_{\rm T}$ bin width and corrected yield ratios R21 and R31 for $|y| < 0.6$. The statistical and systematic...

  • Table 5

    Data from Table 5

    10.17182/hepdata.64486.v1/t5

    The $p_{\rm T}$ bin width and corrected yield ratios R21 and R31 for $0.6 < |y| < 1.2$. The statistical...

  • Table 6

    Data from Table 6

    10.17182/hepdata.64486.v1/t6

    The $p_{\rm T}$ bin width and corrected yield ratios R21 and R31 for $|y| < 1.2$. The statistical and systematic...

  • Table 7

    Data from Table 7

    10.17182/hepdata.64486.v1/t7

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 8

    Data from Table 8

    10.17182/hepdata.64486.v1/t8

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 9

    Data from Table 9

    10.17182/hepdata.64486.v1/t9

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 10

    Data from Table 10

    10.17182/hepdata.64486.v1/t10

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 11

    Data from Table 11

    10.17182/hepdata.64486.v1/t11

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 12

    Data from Table 12

    10.17182/hepdata.64486.v1/t12

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 13

    Data from Table 13

    10.17182/hepdata.64486.v1/t13

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 14

    Data from Table 14

    10.17182/hepdata.64486.v1/t14

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

  • Table 15

    Data from Table 15

    10.17182/hepdata.64486.v1/t15

    The dimuon acceptance $\mathcal{A}$ calculated using the CMS measured polarization and its positive and negative uncertainties $\mathcal{A}(\sigma^{\pm})$, and the values...

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