Amplitude Analysis of the B0 - K*0 μ+μ- Decay
An amplitude analysis of the B-0 -> K*(0) mu(+)mu(-) decay is presented using a dataset corresponding to an integrated luminosity of 4.7 fb(-1) of pp collision data collected with the LHCb experiment. For the first time, the coefficients associated to short-distance physics effects, sensitive to processes beyond the standard model, are extracted directly from the data through a q(2)-unbinned amplitude analysis, where q(2) is the mu(+)mu(-) invariant mass squared. Long-distance contributions, which originate from nonfactorizable QCD processes, are systematically investigated, and the most accurate assessment to date of their impact on the physical observables is obtained. The pattern of measured corrections to the short-distance couplings is found to be consistent with previous analyses of b- to s-quark transitions, with the largest discrepancy from the standard model predictions found to be at the level of 1.8 standard deviations. The global significance of the observed differences in the decay is 1.4 standard deviations.
WOS:001201992300011
2024-03-28
132
13
131801
REVIEWED
Funder | Grant Number |
CERN | |
CAPES (Brazil) | |
CNPq (Brazil) | |
FAPERJ (Brazil) | |
MOST (China) | |
NSFC (China) | |
CNRS/IN2P3 (France) | |
BMBF (Germany) | |
DFG (Germany) | |
GVA (Spain) | |
MPG (Germany) | |
XuntaGal (Spain) | |
INFN (Italy) | |
GENCAT (Spain) | |
NWO (Netherlands) | |
Inditex (Spain) | |
MNiSW (Poland) | |
InTalent (Spain) | |
NCN (Poland) | |
MCID/IFA (Romania) | |
Prog. Atraccion Talento, CM (Spain) | |
SRC (Sweden) | |
MICINN (Spain) | |
Leverhulme Trust (United Kingdom) | |
SNSF (Switzerland) | |
Royal Society (United Kingdom) | |
SER (Switzerland) | |
UKRI (United Kingdom) | |
NASU (Ukraine) | |
STFC (United Kingdom) | |
DOE NP (USA) | |
NSF (USA) | |
ARC (Australia) | |
ARDC (Australia) | |
Key Research Program of Frontier Sciences of CAS(China) | |
CAS PIFI (China) | |
CAS CCEPP (China) | |
Fundamental Research Funds for the Central Universities(China) | |
Sci. and Tech. Program of Guangzhou (China) | |
Minciencias (Colombia) | |
EPLANET (European Union) | |
Marie Sklodowska-Curie Actions (European Union) | |
ERC (European Union) | |
NextGenerationEU (European Union) | |
A*MIDEX (France) | |
ANR (France) | |
IPhU (France) | |
Labex P2IO (France) | |
Region Auvergne-Rhpne-Alpes (France) | |
AvH Foundation (Germany) | |
ICSC (Italy) | |