Hadronic production of S-wave and P-wave charmed beauty mesons via heavy quark fragmentation

Abstract

At hadron colliders the dominant production mechanism of (bc) mesons with large transverse momentum is due to parton fragmentation. We compute the rates and transverse momentum spectra for production of S-wave and P-wave (bc) mesons at the Tevatron via the direct fragmentation of the bottom antiquark as well as the AltarelliParisi induced gluon fragmentation. Since all the radially and orbitally excited (bc) mesons below the BD flavor threshold will cascade into the pseudoscalar ground state B c through electromagnetic and/or hadronic transitions, they all contribute to the inclusive production of B c . The contributions of the excited S-wave and P-wave states to the inclusive production of B c are 58 and 23%, respectively, and hence significant.

Excited bottom-charmed mesons in a nonrelativistic quark model

“…[35][36][37][38][39]. To estimate the production rates in experiments, the production of the excited B c states were often discussed in the literature [40][41][42][43][44][45][46][47][48][49][50][51][52][53]. As the dominant decay modes, the electromagnetic transitions of the low-lying B c states were also widely estimated in the literature [7][8][9][10][11][12][13][14][15][16][54][55][56][57][58].…”

The Lifetime of a beautiful and charming meson: B_c lifetime measured using the D0 detector

“…Weightings to this p T distribution as determined from Ref. [20] were used to vary this distribution to that expected for µ = µ R /2 and µ = 2µ R as shown in Fig 6.2. This was described in more detail in Section 2.4.3.…”

Rare Radiative Decays of Vector and Axial-Vector $B_{c}$ Mesons to $ (D_{s}, D^{*}_{s}, D_{s1}) $ Final States

“…For years, the pseudoscalar B c meson was considered as the only type of meson containing b and c quarks. But recently, other types of B c meson, such as scalar, vector, axial vector and tensor ones, although have not been discovered yet, are of interest and expected to be produced at LHCb in the future [22][23][24][25][26][27][28][29][30]. Some studies have been done on the mass and decay constants of the vector and axial-vector B c states [31] that can be used as input parameters to investigate different decay channels, which help us to determine their nature and structures.…”