Skip to main content
SpringerLink
Log in

Hadrons in extensive air showers

Адроны в щироких атмосферных ливнях

II: Comparison between theoretical predictions and experimental results

  • Published:
Il Nuovo Cimento A (1965-1970)

Summary

The present work is a continuation of the theoretical analysis given in part I. A detailed comparison between prediction and experiment has been made for the energy spectrum and the lateral density distribution of hadrons in showers in the region of (104÷106) particles for different altitudes in the atmosphere. Both models analysed in part I predict the measured shape of the energy spectrum of hadrons in EAS up to 104 GeV. From a comparison between the theoretical predictions of the lateral distributions of hadrons and the experimental results an increase of the mean value of transverse momentum with energy is expected. The mean value of the inelasticity coefficient for energies up to above 106 is estimated. Confirmation has been made of the « optimum » energy idea given by Kempa.

Riassunto

Il presente lavoro è una continuazione dell’analisi teorica esposta nella prima parte. Si è fatto un confronto dettagliato fra previsione ed esperimento per lo spettro di energia e la distribuzione laterale di densità di adroni in sciami nella regione di (104 ÷ 106) particelle per diverse altezze nell’atmosfera. Entrambi i modelli analizzati nella prima parte predicono la forma misurata dello spettro di energia di adroni negli EAS fino a 104 GeV. Da un confronto fra le previsioni teoriche delle distribuzioni laterali degli adroni ed i risultati sperimentali ci si aspetta un aumento dell’impulso trasversale con l’energia. Si stima il valore medio del coefficiente di inelasticità per energia fino ad oltre 106. Si dà una conferma dell’idea di « optimum » di energia esposta da Kempa.

Реэюме

В зтой работе продолжается теоретический аналиэ, предложенный в первой части. Проводится подробное сравнение теоретических предскаэаний и зкспериментальных реэультатов для знергетического спектра и поперечного распре-деления плотности адронов в ливнях с раэмерами (104|106) частиц для раэличных высот в атмосфере. Обе модели, рассмотренные в первой части, предскаэывают иэмеренную форму знергетического спектра адронов в щироких атмосферных ливнях вплоть до 104 ГзВ. Иэ сравнения теоретических предскаэаний для поперечных рас-пределений адронов с зксериментальными реэультатами предскаэывается уменьщение среднего эначения поперечного импульса с знергией. Оценивается средняя величина козффициента неупругости для знергий выще 106 ГзВ. Получено подтверждение идеи « оптимальной » знергии, выскаэанной автором ранее.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literatur

  1. J. Kempa: Ph. D. Thesis, University of Lodz (1973);J. Kempa:Nuovo Cimento,31 A, 568 (1976).

  2. E. A. Murzina, S. I. Nikolski andV. I. Yakovlev:Izvest. Akad. Nauk. SSSR, Ser. fiz.,29, 1 (1974).

    Google Scholar 

  3. E. A. Murzina:Izvest. Akad. Nauk. SSSR, Ser. fiz.,31, 517 (1967).

    Google Scholar 

  4. V. I. Sololowski: preprint (1970).

  5. A. D. Erkykin, S. I. Nikolski andV. I. Yakovlev:Izvest. Akad. Nauk. SSSR, Ser. fiz.,32, 427 (1968).

    Google Scholar 

  6. S. I. Nikolski:Isvest. Akad. Nauk. SSSR, Ser. fiz.,31, 1505 (1967).

    Google Scholar 

  7. O. J. Dovzhenko, G. T. Zatsepin, E. A. Murzina, S. I. Nilolsky andV. I. Iakoveev:Proceedings of the International Conference on Cosmic Rays, Vol.2 (Moscow, 1959), p. 144.

    Google Scholar 

  8. G. Tanahashi:Journ. Phys. Soc. Japan,20, 883 (1965).

    Article  ADS  Google Scholar 

  9. T. Kameda, T. Maeda, H. Oda andT. Sugihara:Proceedings of the IX International Conference on Cosmic Rays, Vol.2 (London, 1965), p. 681.

  10. S. Miyake, K. Hinstani, N. Ito, S. Kino, H. Sakuyama, S. Kawakami andN. Hayashida:Proceedings of the XI International Conference on Cosmic Rays, Vol.3 (Budapest, 1969), p. 463.

  11. R. H. Vatcha: Ph. D. Thesis, University of Bombay (1972).

  12. I. Escobar, V. Domingo, K. Murakami, K. Suga andY. Toyoda:Proceedings of the International Conference on Cosmic Rays, Vol.4 (Jaipur, 1963), p. 168.

  13. J. Wdowczyk: IBJ Report Poland No. 1231/VI/PH (1970).

  14. C. Adcock, R. B. Coats, A. W. Wolfendale andJ. Wdowczyk:J. Phys. A,4, 276 (1971).

    Article  ADS  Google Scholar 

  15. T. Matano, M. Machida, K. Ohta, T. Ishizuka andG. Tanahashi:Proceedings of the XII International Conference on Cosmic Rays, Vol.3 (Hobart, 1971), p. 957.

  16. R. Fritze, M. Samorski, R. Stanbert, J. Trümper, B. Aschenbach andE. Böhm:Proceedings of the XI International Conference on Cosmic Rays, Vol.3 (Budapest, 1969), p. 439.

Download references

Author information

Author notes

  1. J. Kempa

    Present address: University of Lodz, Lodz, Poland

Authors and Affiliations

  1. Physics Department, University of Durham, Durham, England

    J. Kempa

Authors
  1. J. Kempa
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kempa, J. Hadrons in extensive air showers. Nuov Cim A 31, 581–592 (1976). https://doi.org/10.1007/BF02734651

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02734651

Search

Navigation