The Gronau-London-Wyler (GLW) method extracts the CKM angle $\gamma$ by measuring $B^\pm$ decay rates involving $D^0/\overline D^0$ mesons. Since that necessitates interference between two amplitudes are significantly different in magnitude, resulting asymmetries tend to be small. CP violation can greatly enhanced for decays final states common both D^0 and $\overline not eigenstates. In particular, large possible f such $D^0\to f$ is doubly Cabibbo suppressed while D^0\to allowed....

We recently showed that warped extra-dimensional models with bulk custodial symmetry and few TeV Kaluza-Klein (KK) masses lead to striking signals at $B$ factories. In this paper, using a spurion analysis, we systematically study the flavor structure of belong above class. particular find profiles zero modes, which are similar in all these models, essentially control underlying structure. This implies our results robust model independent class models. discuss detail origin physics. also...

There exist many experimental indications that final-state interactions (FSIs) may play a prominent role not only in charmful B decays but also charmless ones. We examine the rescattering effects on hadronic decay rates and their impact direct CP violation. The color-suppressed neutral modes such as $B^0\to D^0π^0,π^0π^0,ρ^0π^0,K^0π^0$ can be substantially enhanced by long-distance effects. CP-violating partial rate asymmetries to $ππ/πK$ $ρπ$ are significantly affected signs generally...

Recently, several $B$-physics experiments have reported an appreciable deviation from the Standard Model (SM) in tree-level observables $R_{D^{(*)}}$; combined weighted average now stands at $\approx 4 \sigma$. We first show anomaly necessarily implies model-independent collider signals of form $pp \to b \tau \nu$ that should be expediously searched for ATLAS/CMS as a complementary test anomaly. Next we suggest possible interconnection with radiative stability Higgs boson and point to...

A comprehensive phenomenological analysis of a two Higgs doublet model, with flavor-changing scalar currents at the tree level, called model III, is presented. Constraints from existing experimental information especially on $\ensuremath{\Delta}F=2$ processes are systematically incorporated. emerging rare $B$ decays, $Z\ensuremath{\rightarrow}b\overline{b}$, and $\ensuremath{\rho}$ parameter also examined. Experimental implications for...

Various methods are discussed for obtaining the CKM angle gamma through interference of charged B-meson decay channels B- -> K- D0 and D0-bar where to common final states. It is found that choosing states which not CP eigenstates can lead large direct violation give significant bounds on without any theoretical assumptions. If two or more modes studied, may be extracted with a precision order +/-15 degrees given about 10^8 B-mesons. We also discuss case three body decays additional...

We study the production and decay of Kaluza-Klein (KK) gravitons at CERN Large Hadron Collider (LHC), in framework a warped extra dimension which standard model (SM) fields propagate. Such scenario can provide solutions to both Planck-weak hierarchy problem flavor puzzle SM. In this scenario, via $q\overline{q}$ annihilation decays conventional photon lepton channels are highly suppressed. However, we show that graviton gluon fusion followed by longitudinal $Z/W$ be significant; vector boson...

We study signals at the Large Hadron Collider (LHC) for Kaluza-Klein (KK) excitations of electroweak gauge bosons in framework with standard model (SM) and fermion fields propagating a warped extra dimension. Such addresses both Planck-weak flavor hierarchy problems SM. Unlike often studied ${Z}^{\ensuremath{'}}$ cases, this framework, there are three neutral due to underlying $SU(2{)}_{L}\ifmmode\times\else\texttimes\fi{}SU(2{)}_{R}\ifmmode\times\else\texttimes\fi{}U(1{)}_{X}$ group bulk....

We study predictions for B physics in a class of warped extra dimension models recently introduced, where few ( approximately 3) TeV Kaluza-Klein masses are consistent with electroweak data due to custodial symmetry. As the standard model (SM), flavor violations arise heavy top quark leading striking signals: (i) New contributions DeltaF=2 transitions comparable SM, so success SM unitarity triangle fit is "coincidence." Thus, clean extractions angles likely be affected, addition O(1)...

Using the hadronic matrix elements from lattice, BK and ξs, involving only 4-quark operators for Δ flavor=2 Hamiltonian relevant K–K¯, Bd–B¯d Bs–B¯s mixing, along with Vcb, we deduce a non-trivial constraint on SM, sin(2β)=0.87±0.09. This deviates direct experimental measurements via tree process, b→cc¯s as well one penguin-loop b→s decays by around 2.1 2.7σ respectively. If these deviations are confirmed they would imply presence of new physics rather pervasively in both (i.e. very likely...

We study top quark flavor violation in the framework of a warped extra dimension with Standard Model (SM) fields propagating bulk. Such scenario provides solutions to both Planck-weak hierarchy problem and puzzle SM without inducing problem. find that, generically, $tcZ$ couplings receive huge enhancement, particular, right-handed ones can be $\mathcal{O}(1%)$. This results $\mathrm{BR}(t\ensuremath{\rightarrow}cZ)$ at or above sensitivity Large Hadron Collider (LHC). At International Linear...

We discuss a minimal solution to the long-standing $(g-2)_\mu$ anomaly in simple extension of Standard Model with an extra $Z'$ vector boson that has only flavor off-diagonal couplings second and third generation leptons, i.e. $\mu, \tau, \nu_\mu, \nu_\tau$ their antiparticles. A simplified model realization, as well various collider low-energy constraints on this model, are discussed. find $(g-2)_\mu$-favored region for lighter than tau lepton is totally excluded, while heavier still...

We present an improved result for the lattice computation of proton decay matrix elements in ${N}_{f}=2+1$ QCD. In this study, by adopting error reduction technique all-mode-averaging, a significant improvement statistical accuracy is achieved relevant form factor (and also neutron) on gauge ensemble domain-wall fermions with ${m}_{\ensuremath{\pi}}=0.34--0.69\text{ }\text{ }\mathrm{GeV}$ $2.7\text{ }{\mathrm{fm}}^{3}$ lattice, as used our previous work [1]. improve total to 10--15% from...

We investigate the possibility that dark matter candidate is from a pure non-abelian gauge theory of hidden sector, motivated in large part by its elegance and simplicity. The lightest bound state made confined fields, glueball. point out this simple setup capable providing rich novel phenomena especially parameter space N. They include self-interacting warm scenarios, Bose-Einstein condensation leading to massive stars possibly millions times heavier than our sun giving rise gravitational...

We analyze the recent hints of lepton flavor universality violation in both charged-current and neutral-current rare decays $B$-mesons an $R$-parity violating supersymmetric scenario. Motivated by simplicity minimality, we had earlier postulated third-generation superpartners to be lightest (calling scenario "RPV3") explicitly showed that it preserves gauge coupling unification course has usual attribute naturally addressing Higgs radiative stability. Here show $R_{D^{(*)}}$ $R_{K^{(*)}}$...

In the standard model (SM) photon in radiative ${\overline{B}}^{0}$ and ${\overline{B}}_{s}$ decays is predominantly left handed. Thus, mixing-induced CP asymmetries $b\ensuremath{\rightarrow}s\ensuremath{\gamma}$ $b\ensuremath{\rightarrow}d\ensuremath{\gamma}$ are suppressed by ${m}_{s}{/m}_{b}$ ${m}_{d}{/m}_{b}$, respectively, very small. many extensions of SM, such as left-right symmetric (LRSM), amplitude right-handed photons grows proportional to virtual heavy fermion mass, which can...

We show that a fourth family of quarks with $m_{t'}$ in the range (400 - 600) GeV provides rather simple explanation for several indications new physics have been observed involving CP asymmetries b-quark. The built-in hierarchy 4$\times$4 mixing matrix is such $t'$ readily needed {\it perturbation} ($\approx 15%$) to $\sin 2 \beta$ as measured $B \to \psi K_s$ and simultaneously dominant source asymmetry $B_s \phi$. correlation between \to\psi \phi$ $B_d\to\phi suggests $m_{t'} \approx$...

An exploratory study of charmless 3-body decays $B$ mesons is presented using a simple model based on the framework factorization approach. The nonresonant contributions arising from $B\ensuremath{\rightarrow}{P}_{1}{P}_{2}$ transitions are evaluated heavy meson chiral perturbation theory (HMChPT). momentum dependence amplitudes assumed to be in exponential form ${e}^{\ensuremath{-}{\ensuremath{\alpha}}_{\mathrm{NR}}{p}_{B}\ifmmode\cdot\else\textperiodcentered\fi{}({p}_{i}+{p}_{j})}$ so that...

We study signals at the LHC for Kaluza-Klein (KK) excitations of electroweak charged gauge bosons in framework standard model (SM) fields propagating bulk a warped extra dimension. Such scenario can solve both Planck-weak and flavor hierarchy problems SM. There are two such states this with couplings to light quarks leptons being suppressed relative those SM, whereas top/bottom enhanced, similar case neutral previously studied. However, unlike bosons, there is no irreducible QCD background...

We extend our recent work and study implications of the standard model with four generations (SM4) for rare $B$ $K$ decays. again take seriously several $2--3\ensuremath{\sigma}$ anomalies seen in $B$, ${B}_{s}$ decays interpret them context this simple extension SM. SM4 is also course considerable interest its potential relevance to dynamical electroweak symmetry breaking baryogenesis. Using experimental information from processes such as...

Using primarily experimental inputs for S(B -> psi Ks), Delta M_Bs, M_Bd, BR(B tau nu) and epsilon_K along with necessary from the lattice, we find that measured value of sin(2 beta) is smaller than expectations Standard Model by as much 3.3 sigma, also seems to be less predicted about 2.8 sigma. However, through a critical study show most likely dominant source these deviations in B_d(s) mixings so B nu, bulk problem persists even if input not used. The fact kaon mixing are deviation has...

Understanding the spectral and flavor composition of astrophysical neutrino flux responsible for recently observed ultra-high energy events at IceCube is great importance both astrophysics particle physics. We perform a statistical likelihood analysis to 3-year data derive allowed range index normalization various well-motivated physical compositions source. While most existing analyses so far assume neutrinos an source be (1:2:0), it seems rather unnatural only one type source, once we...

Neutral $B$ meson mixing matrix elements and decay constants are calculated. The static approximation is used for the $b$ quark domain-wall fermion formalism employed light quarks. calculations carried out on $2+1$-flavor dynamical ensembles generated by RBC UKQCD collaborations with lattice spacings of 0.086 fm (${a}^{\ensuremath{-}1}\ensuremath{\sim}2.3\text{ }\text{ }\mathrm{GeV}$) 0.11 (1.7 GeV), a fixed physical spatial volume about $(2.7\text{ }\mathrm{fm}{)}^{3}$. In action, link...