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| CMS-PAS-BPH-15-004 | ||
| Measurement of the $ \mathrm{B}^+ $ hadron production cross section in pp collisions at 13 TeV | ||
| CMS Collaboration | ||
| December 2015 | ||
| Abstract: The $ \mathrm{B}^+ $ meson differential cross sections, as a function of transverse momentum and rapidity, are measured in pp collisions at center-of-mass energy $\sqrt{s} =$ 13 TeV, on the basis of a data sample collected by the CMS experiment, corresponding to an integrated luminosity of 50.8 pb$^{-1}$. The measurement uses the exclusive decay channel $ \mathrm{ B^+ \to J/\psi K^+ } $, with the $ \mathrm{ J } / \psi $ decaying to a pair of muons. The results are compared with theory calculations and with measurements made at 7 TeV. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PLB 771 (2017) 435. The superseded preliminary plots can be found here. |
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| Figures | |
png ; pdf ; |
Figure 1:
Invariant mass distribution of the $ \mathrm{ B^+ \to J \psi\ K^+ } $ candidates, integrated in the phase space region 10 $< {p_{\mathrm {T}}} ^{ \mathrm{B} } <$ 100 GeV and $ {| y^{ \mathrm{B} } | } <$ 2.4. The solid curve shows the result of the fit. The shaded area represents the signal component, while the dashed and dash-dotted curves represent the combinatorial and mis-reconstructed $\mathrm{ B \to J \psi\ K + X } $ background components, respectively. |
png ; pdf ; |
Figure 2-a:
Invariant mass distributions of the $ \mathrm{ B^+ \to J \psi\ K^+ } $ candidates in the regions of 3 $ \le {p_{\mathrm {T}}} ^{ \mathrm{B} } <$ 17 GeV (a) and 0.4 $\le {| y ^{ \mathrm{B} } | }<$ 0.6 (b). The solid curve shows the result of the fit. The shaded area represents the signal component, while the dashed and dash-dotted curves represent the combinatorial and mis-reconstructed $\mathrm{ B \to J \psi\ K + X } $ background components, respectively. |
png ; pdf ; |
Figure 2-b:
Invariant mass distributions of the $ \mathrm{ B^+ \to J \psi\ K^+ } $ candidates in the regions of 3 $ \le {p_{\mathrm {T}}} ^{ \mathrm{B} } <$ 17 GeV (a) and 0.4 $\le {| y ^{ \mathrm{B} } | }<$ 0.6 (b). The solid curve shows the result of the fit. The shaded area represents the signal component, while the dashed and dash-dotted curves represent the combinatorial and mis-reconstructed $\mathrm{ B \to J \psi\ K + X } $ background components, respectively. |
png ; pdf ; |
Figure 3-a:
Differential cross sections $ \mathrm{d} \sigma / \mathrm{d} {p_{\mathrm {T}}} ^{ \mathrm{B} } $ for $ {| y^{ \mathrm{B} } | } <$ 2.4 (a) and $\mathrm{d}\sigma / \mathrm{d} y^{ \mathrm{B} }$ for 10 $< {p_{\mathrm {T}}} ^{\mathrm{B} }<$ 100 GeV (b), for $ \mathrm{B} ^+ $ production in pp collisions at $\sqrt {s} =$ 13 TeV. See the text for details. |
png ; pdf ; |
Figure 3-b:
Differential cross sections $ \mathrm{d} \sigma / \mathrm{d} {p_{\mathrm {T}}} ^{ \mathrm{B} } $ for $ {| y^{ \mathrm{B} } | } <$ 2.4 (a) and $\mathrm{d}\sigma / \mathrm{d} y^{ \mathrm{B} }$ for 10 $< {p_{\mathrm {T}}} ^{\mathrm{B} }<$ 100 GeV (b), for $ \mathrm{B} ^+ $ production in pp collisions at $\sqrt {s} =$ 13 TeV. See the text for details. |
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Compact Muon Solenoid LHC, CERN |
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