B meson anomaly
WebApr 11, 2024 · This paper reviews the puzzles in modern neutron lifetime measurements and related unitarity issues in the CKM matrix. It is not a comprehensive and unbiased compilation of all historic data and studies, but rather a focus on compelling evidence leading to new physics. In particular, the largely overlooked nuances of different … WebOct 9, 2024 · anomaly and the B meson decay anomaly while providing. a viable DM candidate. The paper is organized as follows. In Sec. II, we extend. the model in Ref. [71] by listing all possible simple charge.
B meson anomaly
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WebSeveral measurements of B meson decays performed in the recent years indicate a possible violation of lepton universality that may represent an indirect signal of … WebApr 6, 2024 · We juxtapose global fits of two bottom-up models (an S3 scalar leptoquark model and a B3 – L2 Z′ model) of b → sμ+μ− anomalies to flavour data in order to quantify statistical preference or lack thereof. The leptoquark model couples directly to left-handed di-muon pairs, whereas the Z′ model couples to di-muon pairs with a vector-like coupling. B …
WebJul 2, 2024 · In 2016, the Large Hadron Collider Beauty (LHCb) Collaboration at CERN reported an anomaly in their data—another result that conflicts with the standard model (see News Feature: The Era of … WebBy using a thermal Finite Energy QCD Sum Rule, we are able to establish the temperature dependence of the strong coupling. It turns out that this coupling decreases as a function of temperature, vanishing at the criti…
WebApr 19, 2024 · In the latest study, researchers looked at two separate groups of data from LHCb on B-meson decays, and in each case found an anomaly with a statistical significance below 2.5 sigma (a measure of ... WebB mesons seem to decay to muons 15 percent less often than they do to electrons. Physicists are intrigued by this unusual observation because there could be a hidden …
WebAmong them, the B-meson decay anomaly is a very challenging topic due to some indications of new physics have been suggested in the B physics. For example, the angular observable P ′
WebA combined explanation of the -meson decay anomalies with a single vector leptoquark J. Kriewald, C. Hati, J. Orloff, A. M. Teixeira Motivated by the recent experimental progress … the oregWebJun 29, 2024 · Title: From B-meson anomalies to Kaon physics with scalar leptoquarks. Authors: David Marzocca, Sokratis Trifinopoulos, Elena Venturini. Download PDF the oregon bee storeWebHere, “anomaly” means a statistically significant experimental divergence from theoretical prediction. The theory in this case is the standard model of particle … micrometals fb 31WebIt can happen that a B meson decays into a pseudo-scalar or vector particle and two light leptons. This type of decay is rare—on the order of one in ten million events. B meson … micrometer 2.0 releaseWebA small group of physicists took the collider's data on beauty meson (or b meson for short) disintegration, and investigated what might happen if they swapped one assumption … micrometer exampleWebThe LHCb collaboration has confirmed previous hints of odd behaviour in the way B mesons decay into a K * and a pair of muons, bringing fresh intrigue to the pattern of flavour … micrometer replacement caseWebOct 8, 2024 · We assume that the quark-flavor coefficients matrix of the semileptonic operators addressing the neutral-current B-meson anomalies has rank-one, i.e. it can be described by a single vector in quark-flavor space.By correlating the observed anomalies to other flavor and high-p T observables, we constrain its possible directions and we show … the oregon apartments