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Related papers: The Dalitz decay pi0 -> e+ e- gamma revisited

200 papers

We present an analysis of the $e^+ e^- \to \gamma^* \to J/\psi \, \pi \, \pi \, (K \bar{K})$ and $e^+ e^- \to \gamma^* \to h_c \, \pi \, \pi$ processes employing the recently proposed Dalitz-plot decomposition approach, which is based on…

High Energy Physics - Phenomenology · Physics 2025-04-11 Viktoriia Ermolina , Igor Danilkin , Marc Vanderhaeghen

The potential of DAPHNE to explore direct radiative decay $\phi \to \pi^+ \pi^- \gamma$ is studied in detail. Predictions of different theoretical models for this decay are compared. We find that it should be possible to discriminate…

High Energy Physics - Phenomenology · Physics 2009-10-31 K. Melnikov , F. Nguyen , B. Valeriani , G. Venanzoni

We present the status of recent results from the BaBar and Belle experiments on the measurement of the angle gamma from the Dalitz plot analyses of B0->Kspi+pi- and B0->K+pi-pi0.

High Energy Physics - Experiment · Physics 2015-03-17 Eugenia Maria Teresa Irene Puccio

We present a Dalitz plot analysis of B- --> D+ pi- pi- decays, based on a sample of about 383 million Y(4S) --> BBbar decays collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. The analysis has been published…

High Energy Physics - Experiment · Physics 2019-08-13 T. M. Karbach

The decay B^0 -> DK^{*0} is well-known to provide excellent potential for a precise measurement of the Unitarity Triangle angle gamma in future experiments. It is noted that the sensitivity can be significantly enhanced by studying the…

High Energy Physics - Phenomenology · Physics 2009-03-24 Tim Gershon

We perform a Dalitz plot analysis of the decay Ds to K+K-pi+ with the CLEO-c data set of 586/pb of e+e- collisions accumulated at sqrt(s) = 4.17 GeV. This corresponds to about 0.57 million D_s+D_s(*)- pairs from which we select 14400…

High Energy Physics - Experiment · Physics 2010-04-08 The CLEO Collaboration , R. E. Mitchell

We present several recent analyses of Dalitz plots from the CLEO-c experiment, including published and preliminary analyses of D+ to pi- pi+ pi+, D+ to K- pi+ pi+, and D0 to K0_{S,L} pi+ pi- decays. More information on these analyses can be…

High Energy Physics - Experiment · Physics 2019-08-13 Paras Naik , Liming Zhang , Norman Lowrey

The Dalitz plot of $\eta^{\prime} \to \eta \pi^+ \pi^-$ decay is studied using $(225.2\pm2.8)\times 10^6$ $\jpsi$ events collected with the BESIII detector at the BEPCII $e^+e^-$ collider. With the largest sample of $\eta^{\prime}$ decays…

High Energy Physics - Experiment · Physics 2012-08-27 The BESIII Collaboration

The process e^+e^-\to\pi^0\gamma in the energy range \sqrt{s}=0.60-1.06 GeV was studied at VEPP-2M collider with SND detector using 14 pb^{-1} of integrated luminosity. Data were analyzed in the framework of the vector meson dominance…

Within the dispersive approach to the amplitude of the rare decay pi0 -> e+e- the nontrivial dynamics is contained only in the subtraction constant. We express this constant, in the leading order in (m_e/\Lambda)^2 perturbative series, in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Alexander E. Dorokhov , Mikhail A. Ivanov

We present a Dalitz-plot analysis of charmless B+- decays to the final state pi+- pi+- pi-+ using 210 fb^-1 of data recorded by the BABAR experiment at sqrt(s) = 10.58 GeV. We measure the branching fractions B(B+- -> pi+- pi+- pi-+) = (16.2…

High Energy Physics - Experiment · Physics 2010-03-19 B. Aubert , BABAR Collaboration

We analyze the radiative pion decay pi+ -> e+ nu_e gamma within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors FV and FA at q^2=0 --where q^2…

High Energy Physics - Phenomenology · Physics 2011-04-28 D. Gomez Dumm , S. Noguera , N. N. Scoccola

We calculate the radiative corrections to the angular correlation between the polarization of the decaying and the direction of the emitted spin one-half baryons in the semileptonic decay mode. The final results are presented, first, with…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. J. Torres , Ruben Flores-Mendieta , M. Neri , A. Martinez , A. Garcia

The two photon decay width of the neutral pion is analyzed within the combined framework of Chiral Perturbation Theory and the 1/Nc expansion up to order p^6 and p^4 times 1/Nc in the decay amplitude. The eta' is explicitly included in the…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. L. Goity , A. M. Bernstein , B. R. Holstein

We investigate the double Dalitz decays $B_s \to l^+ l^- l'^+ l'^-$ on the basis of the effective Hamiltonian for the transition $b \bar{s} \to l^+ l^-$, and universal form factors suggested by QCD. The correlated mass spectrum of the two…

High Energy Physics - Phenomenology · Physics 2009-11-10 Yusuf Dincer , L. M. Sehgal

The paper presents status of three studies involving the $\omega$ meson using data collected by the KLOE detector. The first two projects are feasibility studies performed on simulated data concerning an upper limit measure ment of BR($\Phi…

High Energy Physics - Experiment · Physics 2019-08-14 L. Heijkenskjöld , W. Ikegami Andersson

Dalitz analyses in charm give access to both magnitudes and phases of the charm decay amplitudes. They play a significant role in charm-mixing measurements, in the measurement of the CP-violating phase gamma in B decays to charm, and in the…

High Energy Physics - Experiment · Physics 2009-05-08 CLEO Collaboration , Jonas Rademacker

Simple dynamics, few available decay channels, and highly controlled radiative and loop corrections, make pion and muon decays a sensitive means of exploring details of the underlying symmetries. We review the current status of the rare…

We investigate the impact of charm mixing on the model-independent gamma measurement using Dalitz plot analysis of the three-body D decay from B+->DK+ process, and show that ignoring the mixing at all stages of the analysis is safe up to a…

High Energy Physics - Phenomenology · Physics 2014-11-20 Alex Bondar , Anton Poluektov , Vitaly Vorobiev