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Properties of inclusive reactions in a unitarized dual model of production amplitudes

Свойства включаюших реакций в унитариэованной дуальной модели для амплитуд рождения

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Il Nuovo Cimento A (1965-1970)

Summary

Inclusive cross-sections are studied in the planar dual model by first constructing a unitarized set of production amplitudes. Total cross-sections, and single- and many-particle spectra are then constructed, and conservation laws are imposed through a set of sum rules. A weak form of the Harari-Freund conjecture for total cross-sections is derived and is easily generalized to single- (and many-) particle spectra. A large number of predictions is obtained for single-particle spectra, many of which are capable of experimental verification. Inclusive experiments on deuterium targets are urged in order to provide a crucial test of the model. Using a stronger form of the Harari-Freund conjecture as an input, we obtain predictions for the way single-particle spectra approach scaling. Criteria for early scaling, and for rising and falling inclusive cross-sections, are discussed in detail. Diffraction dissociation is included in a very natural way. Effects of interference terms, cuts and absorption are briefly discussed, and it is argued that they cannot change the general results discussed in this paper.

Riassunto

Si studiano le sezioni d’urto inclusive nel modello duale planare costruendo prima un insieme unitarizzato di ampiezze di produzione. Si costruiscono poi sezioni d’urto totali, spettri di singole particelle e di molte particelle e si impongono le leggi di conservazione per mezzo di un insieme di regole di somma. Si deduce una forma debole della congettura di Harari-Freund per le sezioni d’urto totali e la si generalizza facilmente agli spettri di una (e molte) particelle. Si ottiene un gran numero di predizioni per gli spettri di particella singola, molte delle quali sono indicate per una verifica sperimentale. Si sollecitano esperimenti inclusivi su bersagli di denterio allo scopo di fornire una prova cruciale del modello. Facendo uso di una forma più forte della congettura di Harari-Freund come entrata, si ottengono predizioni sul modo in cui gli spettri di particella singola si approssimano alla trasformazione di scala. Si discutono in dettaglio i criteri per le trasformazioni di scala precoci, e per le sezioni d’urto crescenti e decrescenti. Si include in modo molto naturale la dissociazione di diffrazione. Di discutono brevemente gli effetti dei termini di interferenza, dei tagli e dell’assorbimento, e se ne arguisce che essi non possono modificare i risultati generali discussi in questo articolo.

Реэюме

Исследуются включаюшие поперечные сечения в плоской дувльной модели, конструируя сначала унитариэованную систему амплитуд рождения. Затем выписываются полные поперечные сечения, одночастичные и многочастичные спектры. Законы сохранения выражаются череэ систему правил сумм. Выводится слабая форма предположения Харари-Фрейнда для полных поперечных сечений, которая легко обобшается на одночастичные (и многочастчные) спектры. Для одночастичных спектров получается больщое число предскаэаний, многие иэ которых поддаются зкспериментальной проверке. Необходимы включаюшие зксперименты на дейтериевых мищенях для того, обеспечить решаюшую проверку модели. Подробно обсуждаются критерии для раннего подобия и для увеличения и уменьщения включаюших поперечных сечений. Дифракционная диссоциация включается очень естественным обраэом. Вкратце обсуждается влияние интерференционных членов, раэреэов и поглошения. Утверждается, что зти зффекты не могут иэменить обшие реэультаты, полученные в зтой работе.

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References

  1. S.-H. H. Tye andG. Veneziano:Phys. Lett.,38 B, 30 (1972).

    Article  ADS  Google Scholar 

  2. H. Harari:Phys. Rev. Lett.,20, 1395 (1968);P. G. O. Freund:Phys. Rev. Lett.,20, 235 (1968).

    Article  ADS  Google Scholar 

  3. A. H. Muller:Phys. Rev. D,2, 2963 (1970).

    Article  ADS  Google Scholar 

  4. For studies within dual models see, for instance:D. Gordon andG. Veneziano:Phys. Rev. D,3, 2116 (1971);G. Veneziano: Invited talk at theAmerican Physical Society Meeting, New York, February 1971; Lett. Nuovo Cimento,1, 681 (1971);R. C. Brower andR. E. Waltz:Nuovo Cimento,10 A, 833 (1972);H. M. Chan andP. Hoyer:Phys. Lett.,36 B, 79 (1971);P. H. Frampton:Phys. Lett.,36 B, 591 (1971);M. B. Einhorn, M. B. Green andM. A. Virasoro:Phys. Lett.,37 B, 292 (1971);Phys. Rev. D,6, 1675 (1972); Berkeley preprint LBL-768 (1972);K. Kinoshita andH. Noda:Progr. Theor. Phys.,48, 1280 (1972).

    Article  ADS  Google Scholar 

  5. For approaches which do not use particular dual models, see:H. M. Chan, C. S. Hsue, C. Quigg andJ. M. Wang:Phys. Rev. Lett.,26, 672 (1971);J. Ellis, J. Finkelstein, P. H. Frampton andM. Jacob:Phys. Lett.,35 B, 227 (1971);M. S. Chen andF. E. Paige: BNL preprint 15906 (1971);R. Logan:Phys. Rev. D,6, 935 (1972);M. Kugler, V. Rittenberg andH. J. Lipkin:Phys. Lett.,38 B, 423 (1972);F. Gliozzi: MIT preprint CTP-289 (1972); See alsoT. Matsuoka:Progr. Theor. Phys.,47, 1643 (1972).

    Article  ADS  Google Scholar 

  6. Diffractive models outside of a duality context have been proposed by:R. Hwa andC. S. Lam:Phys. rev. Lett.,27, 1098 (1971);M. Jacob andR. Slansky:Phys. Rev. D,5, 1847 (1972);K. Gottfried andO. Kofoed-Hansen: CERN-TH-1514 (1972). See alsoR. K. Adair:Phys. Rev.,172, 1370 (1968).

    Article  ADS  Google Scholar 

  7. For reviews of the experimental situation see, for instance:E. L. Berger: ANL preprints HEP 7134 and 7148 (1972);D. Horn:Phys. Reports, to be published.

  8. D. Amati, A. Stanghellini andS. Fubini:Nuovo Cimento,26, 896 (1962);K. Wilson:Acta Phys. Austriaca,17, 37 (1963);R. P. Feynman:Phys. Rev. Lett.,23, 1415 (1969);J. Benecke, T. T. Chou, C. N. Yang andE. Yen:Phys. Rev.,188, 2159 (1969).

    Article  Google Scholar 

  9. T. T. Chou andC. N. Yang:Phys. Rev. Lett.,25, 1072 (1970);C. E. De Tar, D. Z. Freedman andG. Veneziano:Phys. Rev. D,4, 906 (1971). There are too many, more recent, articles on this subject for them to be listed here. A recent review can be found inZ. Koba: Niels Bohr Institute preprint HE12-9 (1972).

    Article  ADS  Google Scholar 

  10. A. Di Giacomo, S. Fubini, L. Sertorio andG. Veneziano:Phys. Lett.,33 B, 171 (1970);G. Veneziano:Proceedings of the International Conference on Duality and Symmetry in Hadron Physics, Tel Aviv, 1971 (Jerusalem, 1971), p. 179.

    Article  ADS  Google Scholar 

  11. G. Veneziano:Phys. Lett.,36 B, 397 (1971);Phys. Rev. Lett.,28, 578 (1972);C.-I. Tan:Phys. Rev. D,5, 1476 (1972).

    Article  ADS  Google Scholar 

  12. C. E. De Tar, K. Kang, C.-I. Tan andJ. H. Weis:Phys. Rev. D,4, 425 (1971);M. A. Virasoro:Phys. Rev. D,3, 2834 (1971). For the persistence of a transversemomentum cut-off in the presence of loops, see:A. Di Giacomo andK. I. Konishi:Nuovo Cimento,12 A, 927 (1972);L. Masperi andC. Rebbi: CERN-TH-1526 (1972);V. Alessandrini andD. Amati: CERN-TH-1534 (1972);D. Ebert: CERN-TH-1528 (1972).

    Article  ADS  Google Scholar 

  13. See, for instance,C. E. De Tar, C. E. Jones, F. E. Low, C.-I. Tan, J. H. Weis andJ. E. Young:Phys. Rev. Lett.,26, 675 (1971).

    Article  ADS  Google Scholar 

  14. This equation has been independently derived byL. Caneschi:Phys. Lett.,37 B, 288 (1971).

    Article  ADS  Google Scholar 

  15. We are grateful toJ. C. Sens for a discussion on this point.

  16. See, for instance,A. K. Kerman:Lectures in Theoretical Physics, Vol.8 (Boulder, Colo., 1965);H. Feshbach:Topics in the theory of nuclear reactions (to be published).

  17. There are correction terms (Masperi andRebbi, ref. (12)) to these components, which do not affect the type of predictions discussed in this paper.

    Article  ADS  Google Scholar 

  18. H. M. Chan andJ. Paton:Nucl. Phys.,10 B, 516 (1969). See also:N. A. Tornqvist:Nucl. Phys.,26 B, 104 (1971);J. A. Shapiro:Phys. Rev. D,4, 1249 (1971).

    ADS  Google Scholar 

  19. E. W. Anderson, E. J. Bleser, H. R. Blieden, G. B. Collins, D. Garelick, J. Menes, F. Turkot, D. Birnbaum, R. M. Edelstein, N. C. Hien, T. J. McMahon, J. F. Mucci andJ. S. Russ:Phys. Rev. Lett.,25, 699 (1970).

    Article  ADS  Google Scholar 

  20. Y. M. Antipov, R. Baud, R. Busnello, C. Damgaard, M. N. Kienzle-Focacci, W. Kienzle, R. Klanner, L. G. Landsberg, A. A. Lebedev, C. Lechanoine, P. Lecomte, M. Martin, V. Roinishvili, R. D. Sard, F. A. Yotch andA. Weitsch:Phys. Lett.,40 B, 147 (1972).

    Article  ADS  Google Scholar 

  21. J. V. Allaby, A. N. Diddens, R. W. Dobinson, A. Klovning, J. Litt, L. S. Rochester, K. Schlüpmann, A. M. Wetherell, U. Amaldi, R. Biancastelli, C. Bosio andG. Matthiae:Proceedings of the IV International Conference on High-Energy Collisions, Oxford, 1972, Vol.2 (Chilton, 1972), p. 85;E. W. Anderson, E. J. Bleser, G. B. Collins, T. Fujii, J. Menes, F. Turkot, R. A. Carrigan jr.,R. M. Edelstein, N. C. Hien, T. J. McMahon andI. Nadelhaft:Phys. Rev. Lett.,19, 198 (1967);16, 855 (1966).

  22. See, for example,S. D. Ellis andA. I. Sanda: NAL THY-49 (1972).

  23. H. D. I. Abarbanel, G. F. Chew, M. L. Goldberger andL. M. Saunders:Phys. Rev. Lett.,26, 937 (1971);C. E. De Tar, D. Z. Freedman andG. Veneziano:Phys. Rev. D,4, 906 (1971).

    Article  ADS  Google Scholar 

  24. C. E. Jones, F. E. Low, S.-H. H. Tye, G. Veneziano andJ. E. Young:Phys. Rev. D,6, 1033 (1972).

    Article  ADS  Google Scholar 

  25. P. H. Frampton: private communication. Problems connected with extensions to baryons are also being studied byF. Gliozzi: private communication. Exotic states are introduced according to the scheme ofS. Ellis, P. H. Frampton, P. G. O. Freund andD. Gordon:Nucl. Phys.,24 B, 453 (1970).

    ADS  Google Scholar 

  26. We are grateful toM. Kugler for raising this point with us.

  27. D. J. Crennell, H. A. Gordon, M. L. Ioffredo andK. W. Lai:Phys. Rev. Lett.,28, 643 (1972);W. D. Shephard, J. T. Powers, N. N. Biswas, N. M. Cason, V. P. Kenney, R. R. Riley, D. W. Thomas, J. W. Elbert andA. R. Erwin:Phys. Rev. Lett.,27, 1164 (1971).

    Article  ADS  Google Scholar 

  28. For a review on ISR data, seeJ. C. Sens: Paper presented at theIV International Conference on High-Energy Collisions, Oxford, 1972, where more references can be found.

  29. L. G. Ratner, R. J. Ellis, G. Vannini, B. A. Babcock, A. D. Krisch andJ. B. Roberts:Phys. Rev. Lett.,27, 68 (1971);C. W. Akerlof, D. G. Crabb, J. L. Day, N. P. Johnson, P. Kalbaci, A. D. Krisch, M. T. Lin, M. L. Marshak, J. K. Randolph, P. Schmueser, A. L. Read, K. W. Edwards, J. G. Asbury, G. J. Marmer andL. G. Ratner:Phys. Rev. D,3, 645 (1971);A. Bertin, P. Capiluppi, A. Cristallini, M. D’Agostino-Bruno, R. J. Ellis, G. Giacomelli, C. Maroni, F. Mercatali, A. M. Rossi andG. Vannini:Phys. Lett.,38 B, 260 (1972).

    Article  ADS  Google Scholar 

  30. E. L. Berger, B. Oh andG. A. Smith:Phys. Rev. Lett.,28, 322 (1972).

    Article  ADS  Google Scholar 

  31. D. B. Smith, R. F. Sprafka andJ. A. Anderson:Phys. Rev. Lett.,23, 1064 (1969).

    Article  ADS  Google Scholar 

  32. For data on correlations, see:W. Ko:Phys. Rev. Lett.,28, 935 (1972);W. D. Shephard, J. T. Powers, N. N. Biswas, N. M. Cason, V. P. Kenney andD. W. Thomas:Phys. Rev. Lett.,28, 703 (1972).

    Article  ADS  Google Scholar 

  33. E. Predazzi andG. Veneziano:Lett. Nuovo Cimento,2, 749 (1971);S.-H. H. Tye:Lett. Nuovo Cimento,2, 1271 (1971);L. Brown:Phys. Rev. D,5, 748 (1972).

    Article  Google Scholar 

  34. We are grateful to Mr.K. Hellesøe for an explicit calculation of the Jacobian.

  35. M. B. Einhorn, J. Ellis andJ. Finkelstein:Phys. Rev. D,5, 2063 (1972). For earlier works on this subject, see:M. B. Einhorn: UCRL preprint 20688 (1971);J. Kwiecinski:Lett. Nuovo Cimento,3, 619 (1972);C. L. Jen, K. Kang, P. Shen andC.-I. Tan:Phys. Rev. Lett.,27, 754 (1971);P. Olesen: CERN-TH-1376 (1971);A. I. Sanda: NAL THY-19 (1971).

    Article  ADS  Google Scholar 

  36. J. H. Schwarz:Phys. Rev.,159, 1269 (1967).

    Article  ADS  Google Scholar 

  37. C. Lovelace:Phys. Lett.,34 B, 500 (1970), and references therein.

    ADS  Google Scholar 

  38. R. C. Brower andJ. H. Weis:Phys. Lett.,41 B, 631 (1972)

    Article  ADS  Google Scholar 

  39. H. Feshbach:Ann. of Phys.,5, 357 (1958);19, 287 (1962).

    Article  MathSciNet  ADS  MATH  Google Scholar 

  40. M. L. Goldberger andK. M. Watson:Collision Theory (New York, 1964).

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This work was supported in part through funds provided by the Atomic Energy Commission under Contract AT(11-1)-3069.

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Tye, S.H.H., Veneziano, G. Properties of inclusive reactions in a unitarized dual model of production amplitudes. Nuov Cim A 14, 711–764 (1973). https://doi.org/10.1007/BF02729428

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