Related papers: Analytic forms for the $e^+e^-$ annihilation cross…

Measurement of the near-threshold $e^+e^- \to D \bar D$ cross section using initial-state radiation

We report measurements of the exclusive cross section for $e^+e^- \to D \bar D $, where $D=D^0$ or $D^+$, in the center-of-mass energy range from the $D \bar D $ threshold to $5\mathrm{GeV}/c^2$ with initial-state radiation. The analysis is…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , G. Pakhlova

Model-independent Representation of Electroweak Data

General model-independent expressions are developed for the polarized and unpolarized cross-sections for $e^+e^-\to f\bar f$ near the $Z^0$ resonance. The expressions assume only the analyticity of S-matrix elements. Angular dependence is…

High Energy Physics - Phenomenology · Physics 2016-08-24 Robin G. Stuart

Analytic Approach to Perturbative QCD and Renormalization Scheme Dependence

We further develop the approach recently used to construct an analytic ghost-free model for the QCD running coupling based on the requirement of the $Q^2$-analyticity and apply it to the process of $e^+e^-$ annihilation into hadrons to…

High Energy Physics - Phenomenology · Physics 2009-10-30 I. L. Solovtsov , D. V. Shirkov

Integrated cross sections of high-energy $e^+e^-$ electroproduction by an electron in an atomic field

The integrated cross sections of high-energy $e^+e^-$ electroproduction by an electron in an atomic field is studied. Importance of various contributions to these cross sections is discussed. It is shown that the Coulomb corrections are…

Nuclear Theory · Physics 2025-01-28 P. A. Krachkov , A. I. Milstein

Isoscalar resonances with J^{PC}=1^{--} in e^+e^-annihilation

The analysis of the vector isoscalar excitations in the energy range between 1 and 2 GeV of the $e^+e^-$ annihilation is presented for the final states $\pi^+\pi^-\pi^0$, $\omega\pi^+\pi^-$, $K^+K^-$, $K^0_SK^\pm\pi^\mp$ and…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. N. Achasov , A. A. Kozhevnikov

Measurements of the absolute branching fractions of $D^0\to\gamma \bar K^{*0}$ and $D^0\to\gamma \phi$

By analyzing a sample of 20.3 fb$^{-1}$ of $e^+e^-$ annihilation data collected at the center-of-mass energy of 3.773~GeV with the BESIII detector, we have made a first measurement of the absolute branching fractions of the radiative decays…

High Energy Physics - Experiment · Physics 2026-05-22 BESIII Collaboration

The e+ e- --> 3(pi+pi-), 2(pi+pi-pi0) and K+K- 2(pi+pi-) Cross Sections at Center-of-Mass Energies from Production Threshold to 4.5 GeV Measured with Initial-State Radiation

We study the processes e+ e- --> 3(pi+pi-)gamma, 2(pi+pi-pi0)gamma and K+ K- 2(pi+pi-)gamma, with the photon radiated from the initial state. About 20,000, 33,000 and 4,000 fully reconstructed events, respectively, have been selected from…

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

Observation of a resonant structure in $e^{+}e^{-} \to K^{+}K^{-}\pi^{0}\pi^{0}$

Using $e^{+}e^{-}$ collision data samples with center-of-mass energies ranging from 2.000 to 2.644 GeV, collected by the BESIII detector at the BEPCII collider, and with a total integrated luminosity of 300 pb^{-1}, a partial-wave analysis…

High Energy Physics - Experiment · Physics 2020-03-25 M. Ablikim , M. N. Achasov , P. Adlarson , S. Ahmed , M. Albrecht , A. Amoroso , Q. An , Anita , Y. Bai , O. Bakina , R. Baldini Ferroli , I. Balossino , Y. Ban , K. Begzsuren , J. V. Bennett , N. Berger , M. Bertani , D. Bettoni , F. Bianchi , J. Biernat , J. Bloms , I. Boyko , R. A. Briere , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , W. L. Chang , G. Chelkov , D. Y. Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , X. R. Chen , Y. B. Chen , W. Cheng , G. Cibinetto , F. Cossio , X. F. Cui , H. ~L. ~Dai , J. P. Dai , X. C. Dai , A. Dbeyssi , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , Y. Ding , C. Dong , J. Dong , L. Y. Dong , M. Y. Dong , S. X. Du , J. Fang , S. S. Fang , Y. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , M. Fritsch , C. D. Fu , Y. Fu , X. L. Gao , Y. Gao , Y. Gao , Y. G. Gao , I. Garzia , E. M. Gersabeck , A. Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , M. Greco , L. M. Gu , M. H. Gu , S. Gu , Y. T. Gu , C. Y Guan , A. Q. Guo , L. B. Guo , R. P. Guo , Y. P. Guo , Y. P. Guo , A. Guskov , S. Han , T. T. Han , T. Z. Han , X. Q. Hao , F. A. Harris , K. L. He , F. H. Heinsius , T. Held , Y. K. Heng , M. Himmelreich , T. 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Partial-Wave Amplitudes and Resonances in pbar + p -> pi + pi

Partial wave amplitudes have been extracted from accurate data on pbar + p -> pi + pi by a method which incorporates the theoretical constraints of analyticity and crossing symmetry. The resulting solution gives a good fit to the…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. R. Martin , G. C. Oades

Full one-loop corrections to neutralino pair production in e+e- annihilation

We present the full one-loop radiative corrections to pair production of neutralinos in e+e- collisions within the Minimal Supersymmetric Standard Model. Particular attention is paid to the definition of weak and QED corrections. The…

High Energy Physics - Phenomenology · Physics 2010-04-05 W. Oeller , H. Eberl , W. Majerotto

Theoretical study of the I$^{+}$ + I$^{-}$ mutual neutralization reaction

We have computed the cross sections of the mutual neutralization reaction between I$^{+}$ and I$^{-}$ for a collision energy varying from 0.001 eV to 50 eV. These cross sections were obtained using the adiabatic potential energy curves of…

Atomic Physics · Physics 2023-09-18 Sylvain Badin , Xiang Yuan , Pierre-Louis Bourgeois , Andre Severo Pereira Gomes , Nicolas Sisourat

Study of the process $e^+e^-\to \pi^+\pi^-\pi^0$ using initial state radiation with BABAR

The process $e^+e^-\to \pi^+\pi^-\pi^0\gamma$ is studied at a center-of-mass energy near the $\Upsilon(4S)$ resonance using a data sample of 469 fb$^{-1}$ collected with the BABAR detector at the PEP-II collider. We have performed a precise…

High Energy Physics - Experiment · Physics 2021-11-15 The BABAR Collaboration

Observation of transverse polarization asymmetries of charged pion pairs in e+e- annihilation near sqrt s=10.58 GeV

The interference fragmentation function translates the fragmentation of a quark with a transverse projection of the spin into an azimuthal asymmetry of two final-state hadrons. In e+e- annihilation the product of two interference…

High Energy Physics - Experiment · Physics 2011-08-15 A. Vossen , R. Seidl , I. Adachi , H. Aihara , T. Aushev , V. Balagura , W. Bartel , M. Bischofberger , A. Bondar , M. Bračko , T. E. Browder , M. -C. Chang , A. Chen , P. Chen , B. G. Cheon , K. Cho , Y. Choi , S. Eidelman , M. Feindt , V. Gaur , N. Gabyshev , A. Garmash , B. Golob , M. Grosse-Perdekamp , J. Haba , K. Hayasaka , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , K. Inami , A. Ishikawa , M. Iwabuchi , Y. Iwasaki , T. Iwashita , N. J. Joshi , H. Kichimi , H. O. Kim , M. J. Kim , B. R. Ko , T Kumita , J. S. Lange , M. J. Lee , S. -H. Lee , M. Leitgab , Y. Li , C. Liu , D. Liventsev , R. Louvot , S. McOnie , H. Miyata , Y. Miyazaki , R. Mizuk , G. B. Mohanty , E. Nakano , S. Nishida , O. Nitoh , A. Ogawa , T. Ohshima , S. Okuno , G. Pakhlova , H. Park , H. K. Park , M. Petrič , L. E. Piilonen , S. Ryu , H. Sahoo , Y. Sakai , O. Schneider , C. Schwanda , O. Seon , M. Shapkin , V. Shebalin , T. -A. Shibata , J. -G. Shiu , P. Smerkol , Y. -S. Sohn , E. Solovieva , S. Stanič , M. Starič , M. Sumihama , T. Sumiyoshi , Y. Teramoto , M. /Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , G. Varner , A. Vinokurova , C. H. Wang , M. -Z. Wang , P Wang , Y. Watanabe , E. Won , B. D. Yabsley , Y. Yamashita , V. Zhilich , P. Zhou , V. Zhulanov

Near threshold radiative 3$\pi$ production in $e^+e^-$ annihilation

We consider the $\pi^+\pi^-\pi_0\gamma$ final state in electron-positron annihilation at cms energies not far from the threshold. Both initial and final state radiations of the hard photon is considered but without interference between…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. Ahmedov , G. V. Fedotovich , E. A. Kuraev , Z. K. Silagadze

Functions of diffraction correction and analytical solutions in nonlinear acoustic measurement

This paper presents an analytical formulation for correcting the diffraction associated to the second harmonic of an acoustic wave, more compact than that usually used. This new formulation, resulting from an approximation of the correction…

Classical Physics · Physics 2009-04-08 Laurent Alliès , D. Kourtiche , M. Nadi

Measurement of hadronic cross sections via initial state radiation at BABAR

The BABAR experiment participates to the global endeavor for a precise prediction of the anomalous magnetic moment of the muon by evaluating the contribution of hadronic processes to the vacuum polarization. After its last result published…

High Energy Physics - Experiment · Physics 2024-05-20 Léonard Polat

Radiative corrections to the background of $\mu\to e\gamma$ decay

Radiative muon decay in the kinematics similar to the neutrinoless decay $\mu\to e\gamma$ is considered. Radiative corrections due to 1-loop virtual photons and emission of additional soft or hard photons are taken into account. Analytical…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. B. Arbuzov , O. Krehl , E. A. Kuraev , E. N. Magar , B. G. Shaikhatdenov

Angular analysis of $B \to K^* e^+ e^-$ in the low-$q^2$ region with new electron identification at Belle

We perform an angular analysis of the $B\to K^* e^+ e^-$ decay for the dielectron mass squared, $q^2$, range of $0.0008$ to $1.1200 ~\text{GeV}^2 /c^4$ using the full Belle data set in the $K^{*0} \to K^+ \pi^-$ and $K^{*+} \to K_S^0 \pi^+$…

High Energy Physics - Experiment · Physics 2024-09-13 Belle Collaboration , D. Ferlewicz , P. Urquijo , I. Adachi , K. Adamczyk , H. Aihara , D. M. Asner , H. Atmacan , R. Ayad , V. Babu , Sw. Banerjee , P. Behera , K. Belous , J. Bennett , M. Bessner , V. Bhardwaj , B. Bhuyan , T. Bilka , D. Biswas , D. Bodrov , M. Bračko , P. Branchini , T. E. Browder , A. Budano , M. Campajola , L. Cao , D. Červenkov , M. -C. Chang , B. G. Cheon , K. Chilikin , H. E. Cho , K. Cho , S. -K. Choi , Y. Choi , S. Choudhury , S. Das , N. Dash , G. de Marino , G. De Pietro , R. Dhamija , F. Di Capua , J. Dingfelder , Z. Doležal , T. V. Dong , S. Dubey , P. Ecker , D. Epifanov , T. Ferber , B. G. Fulsom , V. Gaur , A. Garmash , A. Giri , P. Goldenzweig , E. Graziani , T. Gu , Y. Guan , K. Gudkova , C. Hadjivasiliou , T. Hara , K. Hayasaka , H. Hayashii , S. Hazra , M. T. Hedges , D. Herrmann , W. -S. Hou , C. -L. Hsu , T. Iijima , A. Ishikawa , R. Itoh , M. Iwasaki , W. W. Jacobs , S. Jia , Y. Jin , A. B. Kaliyar , C. Kiesling , C. H. Kim , D. Y. Kim , K. -H. Kim , Y. -K. Kim , K. Kinoshita , P. Kodyš , T. Konno , A. Korobov , S. Korpar , E. Kou , E. Kovalenko , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , K. Kumara , A. Kuzmin , Y. -J. Kwon , Y. -T. Lai , T. Lam , S. C. Lee , D. Levit , P. Lewis , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , D. Liventsev , Y. Ma , D. Matvienko , F. Meier , M. Merola , F. Metzner , K. Miyabayashi , R. Mizuk , G. B. Mohanty , I. Nakamura , M. Nakao , A. Natochii , L. Nayak , S. Nishida , S. Ogawa , H. Ono , S. Pardi , J. Park , A. Passeri , S. Patra , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , T. Podobnik , E. Prencipe , M. T. Prim , N. Rout , G. Russo , S. Sandilya , V. Savinov , G. Schnell , C. Schwanda , Y. Seino , K. Senyo , M. E. Sevior , W. Shan , C. Sharma , J. -G. Shiu , B. Shwartz , E. Solovieva , M. Starič , M. Sumihama , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , Y. Unno , S. Uno , Y. Ushiroda , S. E. Vahsen , K. E. Varvell , E. Wang , M. -Z. Wang , S. Watanuki , E. Won , B. D. Yabsley , W. Yan , S. B. Yang , J. Yelton , J. H. Yin , C. Z. Yuan , L. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhukova

Data-based form factor corrections between the two-pion $\tau$ and $e^+e^-$ spectral functions

The $\tau$ spectral functions are an alternative to $e^+e^-$ cross-sections, where different measurements are not consistent, for computing the hadronic vacuum contribution to the muon magnetic anomaly $a_\mu$. This requires a control of…

High Energy Physics - Phenomenology · Physics 2025-04-21 Michel Davier , Bogdan Malaescu , Zhiqing Zhang

Updated Cross Section Measurement of $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ via Initial State Radiation at Belle

The cross sections of the processes $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ are measured via initial state radiation at center-of-mass energies between the threshold and 6.0~GeV using a data sample of 980~fb$^{-1}$ collected…

High Energy Physics - Experiment · Physics 2014-04-24 Belle Collaboration , C. P. Shen , C. Z. Yuan , P. Wang , A. Abdesselam , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , A. M. Bakich , A. Bala , A. Bobrov , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , V. Chobanova , S. -K. Choi , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , A. Drutskoy , D. Dutta , S. Eidelman , D. Epifanov , H. Farhat , J. E. Fast , T. Ferber , A. Frey , V. Gaur , S. Ganguly , R. Gillard , R. Glattauer , Y. M. Goh , B. Golob , J. Haba , K. Hayasaka , H. Hayashii , X. H. He , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , D. Joffe , T. Julius , J. H. Kang , E. Kato , T. Kawasaki , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , A. Kuzmin , Y. -J. Kwon , S. -H. Lee , J. Li , L. Li Gioi , J. Libby , C. Liu , Z. Q. Liu , P. Lukin , D. Matvienko , K. Miyabayashi , H. Miyata , R. Mizuk , A. Moll , R. Mussa , Y. Nagasaka , E. Nakano , M. Nakao , Z. Natkaniec , M. Nayak , E. Nedelkovska , N. K. Nisar , S. Nishida , O. Nitoh , S. Okuno , C. W. Park , H. Park , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , S. Ryu , T. Saito , Y. Sakai , T. Sanuki , Y. Sato , O. Schneider , G. Schnell , D. Semmler , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , M. Steder , T. Sumiyoshi , U. Tamponi , G. Tatishvili , Y. Teramoto , M. Uchida , Y. Unno , S. Uno , P. Urquijo , Y. Usov , C. Van Hulse , P. Vanhoefer , G. Varner , V. Vorobyev , M. N. Wagner , C. H. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , H. Yamamoto , Y. Yamashita , S. Yashchenko , Y. Yook , C. C. Zhang , Z. P. Zhang , V. Zhulanov , A. Zupanc