English

Decay phi->pi+pi-

High Energy Physics - Experiment 2008-11-26 v1
Authors: M. N. Achasov , K. I. Beloborodov , A. V. Berdyugin , A. V. Bozhenok , A. D. Bukin , D. A. Bukin , S. V. Burdin , T. V. Dimova , V. P. Druzhinin , M. S. Dubrovin , D. I. Ganyushin , I. A. Gaponenko , V. B. Golubev , V. N. Ivanchenko , P. M. Ivanov , A. A. Korol , S. V. Koshuba , E. V. Pakhtusova , E. A. Perevedentsev , A. A. Salnikov , S. I. Serednyakov , V. V. Shary , Yu. M. Shatunov , V. A. Sidorov , Z. K. Silagadze , A. A. Valishev , A. V. Vasiljev
View on arXiv ↗ PDF ↗ DOI ↗

Abstract

The process e+e- ->pi+pi- has been studied with the SND detector at VEPP-2M e+e- collider in the vicinity of phi(1020) resonance. From the analysis of the energy dependence of measured cross section the branching ratio B(phi->pi+pi-)=(7.1+-1.1+-0.9)*10^{-5} and the phase psi_pi=-(34+-4+-3)degrees of interference with the non-resonant pi+pi- production amplitude were obtained.

Keywords

electron-positron annihilation cross sections hadron decays branching fraction

Cite

@article{arxiv.hep-ex/0001048,
  title  = {Decay phi->pi+pi-},
  author = {M. N. Achasov and K. I. Beloborodov and A. V. Berdyugin and A. V. Bozhenok and A. D. Bukin and D. A. Bukin and S. V. Burdin and T. V. Dimova and V. P. Druzhinin and M. S. Dubrovin and D. I. Ganyushin and I. A. Gaponenko and V. B. Golubev and V. N. Ivanchenko and P. M. Ivanov and A. A. Korol and S. V. Koshuba and E. V. Pakhtusova and E. A. Perevedentsev and A. A. Salnikov and S. I. Serednyakov and V. V. Shary and Yu. M. Shatunov and V. A. Sidorov and Z. K. Silagadze and A. A. Valishev and A. V. Vasiljev},
  journal= {arXiv preprint arXiv:hep-ex/0001048},
  year   = {2008}
}

Comments

6 pages, 5 figures, to be published in Physics Letters B

Related papers

View all related →
High Energy Physics - Experiment · Physics
Measurement of the decay phi->mu+mu-
M. N. Achasov, S. E. Baru, A. V. Bozhenok, D. A. Bukin +19
2019-08-17
High Energy Physics - Experiment · Physics
Observation of the decay PHI(1020)--->OMEGA+PI0
M. N. Achasov, S. E. Baru, A. V. Berdyugin, A. V. Bozhenok +23
2008-11-26
High Energy Physics - Experiment · Physics
New experimental data for the decays $\phi\to\mu^+\mu^-$ and $\phi\to\pi^+\pi^-$ from SND detector
M. N. Achasov, V. M. Aulchenko, K. I. Beloborodov, A. V. Berdyugin +28
2008-11-26
High Energy Physics - Experiment · Physics
Observation of the phi to pi+pi-pi+pi- Decay
2 Collaboration
2008-11-26
High Energy Physics - Experiment · Physics
Study of the Process $e^+e^-\to \pi^+\pi^-\pi^+\pi^-$ IN THE C.M. Energy Range 920--1060 MeV with the CMD-3 Detector
R. R. Akhmetshin, A. N. Amirkhanov, A. V. Anisenkov, V. M. Aulchenko +51
2017-03-22
High Energy Physics - Experiment · Physics
Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma Decays
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +22
2008-11-26
High Energy Physics - Experiment · Physics
Measurements of the parameters of the $\phi(1020)$ resonance through studies of the processes $e^+e^- \to K^+K^-$, $K_SK_L$ and $\pi^+\pi^-\pi^0$
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +27
2019-08-17
High Energy Physics - Experiment · Physics
Study of the reaction $e^+e^- \to \pi^0\gamma$ with the SND detector at the VEPP-2M collider
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +12
2016-05-09
High Energy Physics - Experiment · Physics
Experimental study of the e+e- -> pi0 gamma process in the energy region sqrt(s)=0.60-0.97 GeV
M. N. Achasov, K. I. Beloborodov, A. V. Berdugin, A. G. Bogdanchikov +23
2008-11-26
High Energy Physics - Experiment · Physics
The process $e^+e^-\to\pi^+\pi^-\pi^0$ in the energy range 2E_0=1.04 - 1.38 GeV
M. N. Achasov, V. M. Aulchenko, S. E. Baru, K. I. Beloborodov +29
2008-11-26
High Energy Physics - Experiment · Physics
Study of the process $e^+e^- \to \pi^+\pi^-\pi^0$ in the energy region $\sqrt[]{s}$ below 0.98 GeV
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +18
2008-11-26
High Energy Physics - Experiment · Physics
The $\phi(1020)\to\pi^0\pi^0\gamma$ decay
M. N. Achasov, S. E. Baru, K. I. Beloborodov, A. V. Berdyugin +26
2008-11-26
High Energy Physics - Experiment · Physics
Study of the process $e^+e^- \to \pi^+\pi^-$ in the energy region 400<\sqrt[]{s}<1000 MeV
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +19
2009-06-12
High Energy Physics - Experiment · Physics
Study of the process $e^+e^-\to K_S^0 K^{\pm}\pi^{\mp} \pi^+\pi^-$ in the C.M. energy range 1.6--2.0 GeV with the CMD-3 detector
3 Collaboration
2022-12-07
High Energy Physics - Experiment · Physics
Investigation of the $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ reaction in the energy domain near the $\phi$-meson
M. N. Achasov, V. M. Aulchenko, A. V. Berdyugin, A. V. Bozhenok +19
2009-09-25
High Energy Physics - Experiment · Physics
Study of the $\pi\pi$ mass spectra in the process $e^+e^- \to \pi^+\pi^-\pi^0$ at $\sqrt[]{s} \simeq 1020$ MeV
M. N. Achasov, V. M. Aulchenko, K. I. Beloborodov, A. V. Berdyugin +24
2010-05-28
High Energy Physics - Experiment · Physics
Study of dynamics of the process $e^+e^-\to \pi^+\pi^-\pi^0$ in the energy range 1.15--2.00 GeV
SND Collaboration, M. N. Achasov, A. Yu. Barnyakov, A. A. Baykov +37
2020-11-02
High Energy Physics - Experiment · Physics
Experimental study of the decay PHI(1020)--->ETA+GAMMA in multi-photon final state
M. N. Achasov, S. E. Baru, A. V. Berdyugin, A. V. Bozhenok +23
2008-11-26
High Energy Physics - Experiment · Physics
Recent results from SND detector at VEPP-2M
M. N. Achasov, V. M. Aulchenko, K. I. Beloborodov, A. V. Berdyugin +26
2007-05-23
High Energy Physics - Experiment · Physics
Study of the e^+e^-\to\pi^0\gamma process in the energy range 0.60-1.06 GeV
M. N. Achasov, K. I. Beloborodov, A. V. Berdugin, A. G. Bogdanchikov +17
2011-07-19
High Energy Physics - Experiment · Physics
Measurement of the $e^+e^-\to K_SK_L$ cross section near the $\phi(1020)$ resonance with the SND detector
SND Collaboration, M. N. Achasov, A. Yu. Barnyakov, E. V. Bedarev +33
2024-09-13
High Energy Physics - Experiment · Physics
Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M
M. N. Achasov, A. V. Berdyugin, A. V. Bozhenok, A. D. Bukin +20
2009-10-30
High Energy Physics - Experiment · Physics
Measurement of the $e^+e^- \to \eta\pi^+\pi^-$ cross section in the center-of-mass energy range 1.22--2.00 GeV with the SND detector at the VEPP-2000 collider
V. M. Aulchenko, M. N. Achasov, A. Yu. Barnyakov, K. I. Beloborodov +28
2015-03-25
High Energy Physics - Experiment · Physics
Experimental study of the e^+e^-\to\pi^+\pi^-\pi^0 reaction by SND detector in the energy range sqrt{s}=0.42--1.38 GeV
M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov +17
2014-11-17
High Energy Physics - Experiment · Physics
Measurement of the $e^+e^- \to \eta\pi^+\pi^-$ cross section with the SND detector at the VEPP-2000 collider
M. N. Achasov, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin +32
2018-02-07