B meson anomaly

Author: copz

August undefined, 2024

WebApr 13, 2024 · 作者邀请. The subthreshold photoproduction of \phi mesons from heavy nuclear targets has been suggested as a candidate to search for the \phi-N bound state, a quantum chromodynamics molecular state. In this Brief Report, we present detailed Monte Carlo studies to demonstrate the feasibility of this technique. Further, we show that … WebB-mesons are particles with two quarks of which there is a bottom (or beauty) quark. They can very occasionally form when two protons collide in the LHC accelerator. In the …

Anomalies in B -meson decays and the muon g − 2 from dark loops

WebJun 29, 2024 · Title: From B-meson anomalies to Kaon physics with scalar leptoquarks. Authors: David Marzocca, Sokratis Trifinopoulos, Elena Venturini. Download PDF WebStudies of charge-parity (CP) violation in B-meson decays is the primary design goal of the LHCb experiment. As of 2024, ... In December 2024 improved measurements discarded this anomaly. Other measurements. … elektrodistribucija banovo brdo kontakt

Rank-one flavor violation and B-meson anomalies SpringerLink

WebB meson decay anomaly with a non-universal U (1)' extension R. Martinez, F. Ochoa, J.M. Quimbayo We propose an extension of the standard model with an extra U (1)' abelian … WebParticular short-lived particles called B-mesons, created when the LHC smashes protons together, seem to be decaying in unexpected ways, Simone Bifani at the University of … teatum

[2012.06315] A combined explanation of the $B$-meson decay …

(PDF) A non-universal $U(1)_{X}$ extension to the Standard Model …

WebApr 7, 2024 · Hyun Min Lee. We entertain the option of scalar leptoquarks to explain the anomalies in the semi-leptonic decays of -mesons and the discrepancies in the lepton 's including the recent results at Fermilab E989. The and anomalies can be accommodated by the specific couplings for triplet and singlet leptoquarks, respectively, subject to the … WebDark matter and B-meson anomalies in a flavor dependent gauge symmetry Parada T.P. Hutauruk, 1,* Takaaki Nomura, 2,† Hiroshi Okada, 1,‡ and Yuta Orikasa 3,§ 1 Asia Pacific Center for ... elektrode za varenje gusa cenaWebMar 18, 2024 · Based on the vector-meson-dominance model and QCD Van der Waals representation, we find that the percentage of trace anomaly in the proton mass ranges from $16\%$ to $24\%$, which is of similar order of magnitude as the 23$\%$ given by Lattice QCD. We also provide the approximate magnitudes of the systematic … teatum teatum

"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 … " - B meson anomaly

B meson anomaly

WebMay 10, 2024 · The rare semi-leptonic decays of B-meson is a promising scenario for leptonic ﬂav or universality violation. It has been recently reported by the LHCb collaboration a relative branching fraction ... WebNov 2, 2024 · The UMD flavor physics group has been working on B meson decays since 1995 with the design and development of the BaBar experiment at SLAC and since 2014 with the LHCb experiment at CERN. “We are happy that we now have the most precise measurement of this anomaly, which is of huge interest in the particle physics …

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WebOct 26, 2024 · We consider an anomaly free U (1) ′ model with favorable couplings to heavy flavors in the Standard Model (SM), as motivated by B-meson anomalies at LHCb.Taking the U (1) ′ charge to be Q ′ = y (L μ − L τ) + x (B 3 − L 3), we can explain the B-meson anomalies without invoking extra charged fermions or flavor violation beyond the SM.We … WebApr 26, 2024 · I get asked a lot what I think about this or that report of an anomaly in particle physics, like the B-meson anomaly at the large hadron collider which made headlines last month or the muon g-2 that was just all over the news.

WebOct 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 … WebSo B mesons should decay to a kaon and two muons at the same rate at which they decay to a kaon and two electrons. Yet LHCb is seeing a difference in this rare beauty decay: B …

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 … 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 …

WebFeb 1, 2024 · Motivated by flavor non-universality and anomalies in semi-leptonic B-meson decays, we present a general and systematic discussion about how to construct anomaly-free U(1)′ gauge theories based on an extended standard model with only three right-handed neutrinos.If all standard model fermions are vector-like under this new gauge …

WebAug 2024 - Apr 20249 months. Atlanta, Georgia, United States. - Presented product vision, short- and long-term goals while producing an efficient roadmap for product delivery. - … teatulia jasmine green teaWebThere are two types of such B mesons: the B 0 meson that consists of a bottom antiquark and a down quark, while for the B s meson the down quark is replaced by a strange … teatum jones bootsWebsoliton lattices via the chiral anomaly. For such scenarios, we present a uni ed description of pions and meson with a U(2) eld in the framework of the chiral perturbation theory. Our result shows the ground state is a mixture of the magnetized domain walls formed by neutral pion ˇ0 and meson when they coexist. The winding number of the ground teatulia lemongrass tea