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Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields | 1979

A study of semi-inclusive gamma production in charged-current antineutrino-nucleon interactions

V. V. Ammosov; A. H. Amrakhov; A. G. Denisov; P. F. Ermolov; V. A. Gapienko; V. Klukhin; V. I. Koreshev; P. V. Pitukhin; Y. Rjabov; E. Slobokyuk; V. I. Sirotenko; V. I. Efremenko; A. P. Gorichev; V. S. Kaftanov; V. Khovansky; G. K. Kliger; V. Z. Kolganov; S. P. Krutchinin; M. A. Kubantsev; A. Rosanov; V. Shevchenko; J. P. Berge; D. Bogert; D. Hamilton; R. Hanft; J.A. Malko; G. Harigel; G.I. Moffatt; F.A. Nezrick; W. Smart

SummaryThe results of a study of gamma production in antineutrino-nucleon interactions observed in the Fermilab 15 ft bubble chamber filled with a neon-hydrogen mixture are presented. From a sample of 706 gamma-rays we obtained the dependence of the average number of produced π0,s on negative multiplicity, momentum transfer and hadronic invariant mass. We find that the mean transverse momentum of the gamma-rays is independent of the above variables but has an asymmetric distribution with respect to the Feynman variablex. The invariant gamma cross-section distributions, the distribution functionD for π0,s and the energy spectrum of π0,s reconstructed from the gamma spectrum are also reported.RiassuntoSi presentano i risultati di uno studio della produzione di gamma in interazioni antineutrino-nucleone osservate nella camera a bolle di 15 ft del Fermilab riempita con una miscela di neon ed idrogeno. Da un campione di 706 raggi gamma si è ottenuta la dipendenza del numero medio di π0 prodotti dalla multiplicità negativa, dallimpulso trasferito e dalla massa adronica, invariante. Si trova che limpulso trasverso medio dei raggi gamma è indipendente dalle variabili di cui sopra, ma ha una distribuzione asimmetrica rispetto alla variabilex di Feynman. Si riportano anche le distribuzioni delle sezioni durto invarianti dei gamma, la funzione di distribuzioneD per i π0 e lo spettro di energia dei π0 ricostruito per lo spettro dei gamma.РезюмеПриводятся результаты исследований образования гамма-квантов в антинейтрино-нуклонных взаимодействиях, наблюденных в лаборатории Ферми на 15-футовой пузырьковой камере, наполненной неон-водородной смесью. Из анализа 706 гамма-квантов мы получили зависимость среднего числа образованных π0 от отрицательной множественности, переданного импульса и адронной инвариантной массы. Мы определили, что средний переданный импульс гамма-квантов не зависит от выше указанных переменных, но имеет асимметричное распределение относительно фейнмановской переменнойx. Также приводятся инвариантные гамма-распределения поперечных сечений, функция распределенияD для π0 и энергетический спектр π0, реконструированный из гамма-спектра.


Jetp Letters | 1984

Observation of Emc Effect in Anti-neutrino Ne Interactions

V. V. Ammosov; A.E. Asratian; S.P. Kruchinin; V. I. Klyukhin; V.G. Zaets; P. V. Pitukhin; V. A. Gapienko; E. A. Slobodyuk; A. G. Denisov; I. V. Makhlyueva; G.K. Kliger; Kubantsev; A.V. Fedotov; G. S. Gapienko; V. I. Efremenko; V. I. Sirotenko; V.Z. Kolganov; V.i. Chekelian; V. G. Shevchenko; P. A. Gorichev; V. I. Koreshev; Z. U. Usubov


European Physical Journal C | 1988

Studying <img src="/fulltext-image.asp?format=htmlnonpaginated&src=PN31KW60N012U3K2_html\10052_2005_

A. E. Asratyan; Alexei V. Fedotov; P. A. Goritchev; S. P. Krutchinin; M. A. Kubantsev; I. V. Makhlueva; V. I. Shekelyan; V. V. Ammosov; V. S. Burtovoy; A. G. Denisov; G. S. Gapienko; V. A. Gapienko; V. I. Klyukhin; V. I. Koreshev; P. V. Pitukhin; V. I. Sirotenko; Z. U. Usubov; V. G. Zaetz


Jetp Letters | 1987

Production of F - mesons in nu-tilde N interactions

A. E. Asratyan; P. A. Gorichev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; A.V. Fedotov; V. I. Shekelyan; V. V. Ammosov; V. S. Burtovoi; V. A. Gapienko; G. S. Gapienko; A. G. Denisov; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; P. V. Pitukhin; V. I. Sirotenko; Z. U. Usubov


Jetp Letters | 1987

Search for new charmed strange states in nu-tilde N and nu N interactions

A. E. Asratyan; V. S. Burtovoi; V. A. Gapienko; G. S. Gapienko; P. A. Gorichev; A. G. Denisov; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; P. V. Pitukhin; V. I. Sirotenko; Z. U. Usubov; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan


Jetp Letters | 1987

Influence of nonperturbative effects on the violation of scaling in neutrino interactions at Q2 = 2.0-100.0 GeV2

V. V. Ammosov; V. S. Burtovoi; V. A. Gapienko; G. S. Gapienko; A. G. Denisov; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; P. V. Pitukhin; V. I. Sirotenko; Z. U. Usubov; A. E. Asratyan; P. A. Gorichev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan


Jetp Letters | 1986

Observation of a cascade radiative decay of a charmed strange pseudovector meson

V. V. Ammosov; A. E. Asratyan; V. S. Burtovoi; V. A. Gapienko; G. S. Gapienko; P. A. Gorichev; A. G. Denisov; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; P. V. Pitukhin; V. I. Sirotenko; E. A. Slobodyuk; Z. U. Usubov; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan


Jetp Letters | 1986

Quasielastic production of Lambda hyperon in antineutrino interactions at high energies

V. V. Ammosov; A. E. Asratyan; V. A. Gapienko; G. S. Gapienko; P. A. Gorichev; A. G. Denisov; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; P. V. Pitukhin; V. I. Sirotenko; Z. U. Usubov; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan


Jetp Letters | 1984

Higher-twist effects in semi-inclusive nu-tilde N --> + h - X reactions

V. V. Ammosov; A. E. Asratyan; G. S. Gapienko; V. A. Gapienko; P. A. Gorichev; A. G. Denisov; V. I. Efremenko; V. G. Zaets; V. I. Klyukhin; V. I. Koreshev; S. P. Kruchinin; M. A. Kubantsev; I. V. Makhlyueva; P. V. Pitukhin; V. I. Sirotenko; E. A. Slobodyuk; Z. U. Usubov; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan


Jetp Letters | 1984

Production of neutral strange particles in nu-barN interactions caused by neutral currents

V. V. Ammosov; V. A. Gapienko; G. S. Gapienko; P. A. Gorichev; A. G. Denisov; V. I. Efremenko; V.G. Zaets; G. K. Kliger; V. I. Klyukhin; V.Z. Kolganov; V. I. Koreshev; S.P. Kruchinin; Kubantsev; I. V. Makhlyueva; P. V. Pitukhin; V. I. Sirotenko; E. A. Slobodyuk; Z. U. Usubov; A.V. Fedotov; V. G. Shevchenko; V. I. Shekelyan

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R. Orava

Helsinki Institute of Physics

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