Experimental and theoretical results for weak charge current backward proton production

C. E. Carlson; J. Hanlon; K. E. Lassila

doi:10.1103/PhysRevD.63.117301

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Experimental and theoretical results for weak charge current backward proton production

C. E. Carlson

J. Hanlon

K. E. Lassila

Physics Department, College of William and Mary, Williamsburg, Virginia 23187

Fermi National Accelerator Laboratory, Batavia, Illinois 60510

Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011

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Phys. Rev. D 63, 117301 – Published 20 April, 2001

DOI: https://doi.org/10.1103/PhysRevD.63.117301

Abstract

In this paper, we study deuteron breakup by high energy neutrinos. We present previously unpublished data on neutrino induced backward protons from deuteron targets; we calculate the contributions from both the two-nucleon $(2 N)$ and six-quark $(6 q)$ deuteron components, which depend upon the overall normalization of the part that is $6 q;$ and, we suggest other signatures for distinguishing the $2 N$ and $6 q$ clusters. We conclude that the $6 q$ cluster naturally contributes to the high momentum backward proton spectrum just in the region where the standard $2 N$ models lie below the data, and the absolute size of the far backward data is nicely explained if the amount of $6 q$ is one or a few percent by normalization of the deuteron.

References (23)

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G. Baum et al., Phys. Rev. Lett. 51, 1135 (1983); ibid.M. J. Alguard et al., 37, 1261 (1978).
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C. E. Carlson, K. E. Lassila, and U. P. Sukhatme, Phys. Lett. B 263, 277 (1991); ibid.C. E. Carlson and K. E. Lassila, 317, 205 (1993).
M. Sato, S. Coon, H. Pirner, and J. Vary, Phys. Rev. C 33, 1062 (1986).
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E545 Collaboration, T. Kafka et al., Bull. Am. Phys. Soc. 28, 756 (1983).
Quoted in E. Matsinos et al., Z. Phys. C 44, 79 (1989).
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K. E. Lassila and U. P. Sukhatme, Phys. Lett. B 209, 343 (1988); see also C. E. Carlson and T. J. Havens, Phys. Rev. Lett. 51, 261 (1983).
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C. E. Carlson and K. E. Lassila, Phys. Rev. C 51, 364 (1995).
There may also be effects for fast forward protons; see S. Simula, Few-Body Syst., Suppl. 9, 466 (1995); C. Ciofi degli Atti and S. Simula, Phys. Lett. B 325, 276 (1994).

[c1] J. Ashman et al., Nucl. Phys. B328, 1 (1989); J. AshmanPhys. Lett. B 206, 364 (1988).

[c2] G. Baum et al., Phys. Rev. Lett. 51, 1135 (1983); ibid.M. J. Alguard et al., 37, 1261 (1978).

[c3] P. Amaudruz et al., Phys. Rev. Lett. 66, 2712 (1991).

[c4] B. Adeva et al., Phys. Lett. B 302, 533 (1993).

[c5] P. L. Anthony et al., Phys. Rev. Lett. 71, 959 (1993).

[c6] C. E. Carlson, K. E. Lassila, and U. P. Sukhatme, Phys. Lett. B 263, 277 (1991); ibid.C. E. Carlson and K. E. Lassila, 317, 205 (1993).

[c7] M. Sato, S. Coon, H. Pirner, and J. Vary, Phys. Rev. C 33, 1062 (1986).

[c8] G. Yen and J. Vary, Phys. Rev. C 40, R16 (1989).

[c9] A. Kobushkin, Yad. Fiz. 28, 495 (1979) [Sov. J. Nucl. Phys. 28, 252 (1978)].

[c10] N. S. Manton, Phys. Rev. Lett. 60, 1916 (1988); E. Braaten and L. Carson, Phys. Rev. D 38, 3525 (1988); R. A. Leese, N. S. Manton, and B. J. Schroers, Nucl. Phys. B442, 228 (1995).

[c11] See, e.g., J. B. Cole et al., Phys. Rev. D 37, 1105 (1988), and references therein.

[c12] E545 Collaboration, T. Kafka et al., Bull. Am. Phys. Soc. 28, 756 (1983).

[c13] Quoted in E. Matsinos et al., Z. Phys. C 44, 79 (1989).

[c14] L. L. Frankfurt and M. I. Strikman, Phys. Lett. 69B, 93 (1977).

[c15] M. Lacombe et al., Phys. Lett. 101B, 139 (1981).

[c16] R. Machleidt et al., Phys. Rep. 149, 1 (1987).

[c17] R. V. Reid, Ann. Phys. (N.Y.) 50, 411 (1968).

[c18] J. W. Van Orden, N. Devine, and F. Gross, Phys. Rev. Lett. 75, 4369 (1995).

[c19] J. Botts et al., Phys. Lett. B 304, 159 (1993).

[c20] K. E. Lassila and U. P. Sukhatme, Phys. Lett. B 209, 343 (1988); see also C. E. Carlson and T. J. Havens, Phys. Rev. Lett. 51, 261 (1983).

[c21] K. Griffioen (private communication).

[c22] C. E. Carlson and K. E. Lassila, Phys. Rev. C 51, 364 (1995).

[c23] There may also be effects for fast forward protons; see S. Simula, Few-Body Syst., Suppl. 9, 466 (1995); C. Ciofi degli Atti and S. Simula, Phys. Lett. B 325, 276 (1994).

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Experimental and theoretical results for weak charge current backward proton production

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