Observation of color-transparency in diffractive dissociation of pions

被引:101
作者
Aitala, EM [1 ]
Amato, S
Anjos, JC
Appel, JA
Ashery, D
Banerjee, S
Bediaga, I
Blaylock, G
Bracker, SB
Burchat, PR
Burnstein, RA
Carter, T
Carvalho, HS
Copty, NK
Cremaldi, LM
Darling, C
Denisenko, K
Devmal, S
Fernandez, A
Fox, GF
Gagnon, P
Gerzon, S
Gobel, C
Gounder, K
Halling, AM
Herrera, G
Hurvits, G
James, C
Kasper, PA
Kwan, S
Langs, DC
Leslie, J
Lichtenstadt, J
Lundberg, B
MayTal-Beck, S
Meadows, B
Neto, JRTD
Mihalcea, D
Milburn, RH
de Miranda, JM
Napier, A
Nguyen, A
d'Oliveira, AB
O'Shaughnessy, K
Peng, C
Perera, LP
Purohit, MV
Quinn, B
Radeztsky, S
Rafatian, A
机构
[1] Univ Mississippi, University, MS 38677 USA
[2] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil
[3] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA
[4] Univ Cincinnati, Cincinnati, OH 45221 USA
[5] CINVESTAV, Mexico City 14000, DF, Mexico
[6] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA
[7] IIT, Chicago, IL 60616 USA
[8] Kansas State Univ, Manhattan, KS 66506 USA
[9] Univ Massachusetts, Amherst, MA 01003 USA
[10] Princeton Univ, Princeton, NJ 08544 USA
[11] Univ Autonoma Puebla, Puebla 72570, Mexico
[12] Univ S Carolina, Columbia, SC 29208 USA
[13] Stanford Univ, Stanford, CA 94305 USA
[14] Tel Aviv Univ, IL-69978 Tel Aviv, Israel
[15] Tufts Univ, Medford, MA 02155 USA
[16] Univ Wisconsin, Madison, WI 53706 USA
[17] Yale Univ, New Haven, CT 06511 USA
关键词
D O I
10.1103/PhysRevLett.86.4773
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have studied the diffractive dissociation into dijets of 500 GeV/c pions scattering coherently from carbon and platinum targets. Extrapolating to asymptotically high energies (where t(min) --> 0), we find that when the per-nucleus cross section for this process is parametrized as sigma = sigma (0)A(alpha), alpha has values near 1.6, the exact result depending on jet transverse momentum. These values are in agreement with those predicted by theoretical calculations of color-transparency.
引用
收藏
页码:4773 / 4777
页数:5
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