LHCb Collaboration

Weak decays ofB¯smesons

“…Since the first claims on the existence of B s andB s , both their lifetimes, decay modes [1][2][3][4][5][6][7][8][9][10][11][12] and oscillations [13][14][15][16][17][18][19] have been objectives of the uttermost interest of experimental collaborations. Being below the B − K threshold, it can only decay by means of mechanisms governed by electroweak currents, making it an ideal system to study the physics of the weak interaction in the presence of heavy quarks.…”

Higher order light-cone distribution amplitudes of the Lambda baryon

“…Some of the previous work [30][31][32] shows that when using LCDAs from a conformal spin expansion approach, the next-to-leading order corrections may affect the results to some extent, particularly for the dynamical processes. In recent years, much data on the heavy b baryon has been accumulated at LHC [33][34][35][36][37] and CDF [38,39], which provide an excellent platform to investigate the intrinsic properties of QCD. Therefore the higher order corrections to the LCDAs of the baryon is instructive in investigating the nonperturbative effects at hadron level.…”

Single and double charmed meson production at the LHC

“…In the meanwhile the LHCb collaboration measured the cross section for the production of DD meson-meson pairs at √ s = 7 TeV which is surprisingly large, including interesting correlation distributions [5]. So far those data sets for double open charm production have been studied differentially only within the k ⊥ -factorization approach using unintegrated gluon distributions [8], where several observables useful to identify the DPS effects in the case of double open charm production have been carefully discussed.…”