Measurement of the differential inclusive B+ hadron cross sections in pp collisions at s=13 TeV

Abstract

Measurement of the differential inclusive B + hadron cross sections in pp collisions at √ s = 13 TeVThe CMS Collaboration * AbstractThe differential cross sections for inclusive production of B + hadrons are measured as a function of the B + transverse momentum p B T and rapidity y B in pp collisions at a centre-of-mass energy of 13 TeV, using data collected by the CMS experiment that correspond to an integrated luminosity of 48.1 pb −1 . The measurement uses the exclusive decay channel B + → J/ψK + , with J/ψ mesons that decay to a pair of muons. The results show a reasonable agreement with theoretical calculations within the uncertainties.

B meson nuclear modification factor in Pb–Pb at 5.02 TeV with CMS

“…Also shown in the same figure is the predicted cross section obtained from fixed-order plus next-to-leading-logarithm (FONLL) calculations [3,4]. The obtained B + FONLL reference is consistent with the measured pp spectra, similar to what was observed in the measurement conducted in pp collisions at √ s = 13 TeV [5]. With the corrected yields from pp and PbPb data, the nuclear modification factor R AA can then be computed as:…”

Sensitivity of the intensity frontier experiments for neutrino and scalar portals: analytic estimates

“…Namely, integrating the central predictions over the experimentally measured p T s, we have σ D,FONLL /σ D,exp ≈ 0.4 and σ B,FONLL /σ B,exp ≈ 0.7. However, as is demonstrated in the same papers [65,66], the agreement between the FONLL predictions and the experimental data is much better if one uses the upper bound of the FONLL predictions defined by the theoretical uncertainties.…”

“…In particular, comparison of the FONLL simulations of the production of the B + s with the measurements at the Tevatron and at the LHC showed that FONLL predicts the low p T distribution accurately. We show the central values of the FONLL predictions down to p T = 0, confronted with the measurements of the CMS [65] and ATLAS [66] collaborations in Fig. 4.…”

Single diffractive production of open heavy flavor mesons

“…7, we show this ratio as a function of p T for D mesons, both for prompt and nonprompt mechanisms. For the sake of definiteness, we [41] and a short discussion in Appendix A 2).The experimental data are for inclusive production from CMS [96] ("jyj < 2.1" data points) and ATLAS [97] ("jyj < 0.5" data points). For some experimentally measured results, bin-integrated cross sections dσ=dp T was converted into dσ=dp T dy dividing by the width of the rapidity bin (this is justified since in LHC kinematics at central rapidities y ≈ 0 the cross section is flat).…”