Научная тема: «РОЖДЕНИЕ ЧАРМОНИЯ В Е+Е АННИГИЛЯЦИИ»
Специальность: 01.04.23
Год: 2007
Основные научные положения, сформулированные автором на основании проведенных исследований:
  1. Первое обнаружение процессов е+е~ ->■ J(cc)res-
  2. Угловой анализ процессов е+е~ ->■ J(cc)res-
  3. Первое обнаружение процессов е+е~ ->■ ф(2Б) (cc)res-
  4. Измерение сечений обнаруженных процессов парного рождения чар­мония.
  5. Первое обнаружение ассоциативного рождения Jи очарованных ме­зонов в е+е~ аннигиляции.
  6. Измерение сечения процесса е+е~ ->■ J/ф се.
  7. Обнаружение новых состояний чармония r]c(2S) и Х(3940); измерение сечений рождения этих состояний в процессе парного рождения чар­мония; измерение их масс, ширины Х(3940) и вероятностей распадов Х(3940) -► DD, £>*Д J/фи.
Список опубликованных работ
[1] К. Abe, ..., P. Pakhlov, et al. (Belle Collaboration), "Production of prompt charmonia in e+e~ annihilation at л/s ~ 10.6 GeV." Phys. Rev. Lett. 88 052001 (2002).

[2] K. Abe, ..., P. Pakhlov, et al. (Belle Collaboration), "Observation of double cc production in e+e~ annihilation at л/s ~ 10.6 GeV." Phys. Rev. Lett. 89, 142001 (2002).

[3] K. Abe, ..., P. Pakhlov, et al. (Belle Collaboration), "Study of double charmonium production in e+e~ annihilation at y/s ~ 10.6 Ge V." Phys. Rev. D70, 071102 (2004).

[4] P. N. Pakhlov, "Charmonium production with e+e~." Acta Phys. Polon. B35, 97 (2004).

[5] K. Abe, ..., P. Pakhlov, et al. (Belle Collaboration),"Observation of a charmoniumlike state produced in association with a J/ift in e+e~ annihilation at y/s « 10.6 GeV." Phys. Rev. Lett. 98, 082001 (2007).

[6] P. Pakhlov, "Study of e+e annihilation into double c¯ final states at Belle and BaBar." Contributed to 32nd International Conference on High-Energy Physics (ICHEP 04), Beijing, China, 16-22 Aug, 2004. Published in Beijing 2004, ICHEP 2004, vol. 1 636-639.

[7] P. Pakhlov, "Charm and Charmonium: Spectroscopy, Production and Decay." Contributed to 33nd International Conference on High-Energy Physics (ICHEP 06), Moscow, Russia, Jul. 27 - Aug. 2, 2006. Published in Moscow 2006, ICHEP 2006.

[8] P. Pakhlov "New particles at Belle." Proceedings of the Conference on High Energy Physics (EPS 2005), Lisbon, Portugal, 2005.

[9] P. Pakhlov, "Charm lifetimes, D° — D mixing and double c¯ continuum production." PRINT-02-015. Contributed to Flavor Physics and CP Violation (FPCP), Philadelphia, Pennsylvania, 16-18 May 2002.

[10] P. Pakhlov, "Measurement of double ccbar production." Proceedings of the XXXVIIIth Rencontres de Moriond, 2003, QCD and Hadronic Interactions at High Energy.

[11] P. Pakhlov, "Double charmonium production in e+e~ annihilation at y/s ~ 10.58 GeV."Nucl. Phys. Proc. Suppl. 162, 305 (2006).

Список литературы

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F. Abe et al. (CDF Collaboration), "Production of J/ift mesons from Xc meson decays in pp collisions at y/s = 1.8 TeV." Phys. Rev. Lett. 79, 578 (1997).

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A. V. Berezhnoi, V. V. Kiselev, A. K. Likhoded and A. I. Onishchenko, "Bc meson at LHC." Phys. Atom. Nucl. 60, 1729 (1997);

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F. Yuan, C.-F. Qiao, and K.-T. Chao, "Prompt J/ф production at e+e~ colliders." Phys. Rev. D56, 321 (1997).

[17] S.K. Choi et al. (Belle Collaboration), "Observation of a new narrow charmonium state in exclusive B± —>■ K±7i+7i~J/ф decays." Phys. Rev. Lett. 91, 262001 (2003).

[18] M. Voloshin, "Interference and binding effects in decays of possible molecular component of X(3872)." Phys. Lett. B579, 316 (2004);

N. Tornqvist, "Isospin breaking of the narrow charmonium state of Belle at 3872-MeV as a deuson." Phys. Lett. B590, 209 (2004);

E. Swanson, "Short range structure in the X(3872)." Phys.Lett. B588, 189 (2004).

[19] B. Aubert et al. (BABAR Collaboration), "Observation of a broad structure in the 7Г+7Г~ J/ф mass spectrum around 4-26 GeV/c2." Phys. Rev. Lett. 95, 142001 (2005).

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Z.Natkaniec et al. "Status of the Belle silicon vertex detector.7 Nucl. Instr. and Meth. A 560, 1 (2006).

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K. Hagiwara, E. Kou and C.-F. Qiao, "Exclusive J/ift productions at e+e~ colliders." Phys. Lett. B570, 39 (2003);

K.Y. Liu, Z.G. He, and K.T. Chao, "Problems of double charm production in e+e~ annihilation at y/s = 10.6 GeV." Phys. Lett. B557, 45 (2003).

[24] G.T. Bodwin, J. Lee and E. Braaten, "Exclusive double charmonium production from e+e~ annihilation into two virtual photons.", Phys. Rev. D67, 054023 (2003),

[25] Y. J. Zhang, Y. J. Gao and K.T. Chao, "Next-to-leading order QCD correction to e+e~ —> J/^rjc at л/s = 10.6 GeV." Phys. Rev. Lett. 96, 092001 (2006).

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[27] A. B. Kaidalov, "Jjvb c¯ production in e+e~ and hadronic interactions." JETP Lett. 77, 349 (2003); Письма ЖЭТФ 77, 417 (2003).

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