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Volumn 68, Issue 16, 1992, Pages 2433-2436
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Measurement of, the ratio of the real to the imaginary part of the p»p forward elastic-scattering amplitude, at s =1.8 TeV
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Amos, N A
a,b,c,d,e,f
Avila, C
a,b,c,d,e,f
Baker, W F
a,b,c,d,e,f
Bertani, M
a,b,c,d,e,f
Block, M M
a,b,c,d,e,f
Dimitroyannis, D A
a,b,c,d,e,f
Eartly, D P
a,b,c,d,e,f
Ellsworth, R W
a,b,c,d,e,f
Giacomelli, G
a,b,c,d,e,f
Gomez, B
a,b,c,d,e,f
Goodman, J A
a,b,c,d,e,f
Guss, C M
a,b,c,d,e,f
Lennox, A J
a,b,c,d,e,f
Mondardini, M R
a,b,c,d,e,f
Negret, J P
a,b,c,d,e,f
Orear, J
a,b,c,d,e,f
Pruss, S M
a,b,c,d,e,f
Rubinstein, R
a,b,c,d,e,f
Sadr, S
a
Sanabria, J C
a
Shukla, S
a
Spagnoli, M
a
Veronesi, I
a
Zucchelli, S
a
more..
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Author keywords
[No Author keywords available]
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Indexed keywords
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EID: 0000101282
PISSN: 00319007
EISSN: None
Source Type: Journal
DOI: 10.1103/PhysRevLett.68.2433
Document Type: Article
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16
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84927393494
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Another method for obtaining the background in the AD combination is to use the AD combination data only. We obtain the y distribution of background events in A from those events where the hit in D is outside the corresponding elastic region. The background y distribution in D is obtained analogously, and we then combine the two distributions as before assuming that they are uncorrelated. The results obtained for the background are identical within statistics to the method described in the text.
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18
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84927393493
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Some authors [e.g., R. Glauber (private communication) and J. Pumplin, DESY Report No. DESY 91-143, 1991 (to be published)] have recently suggested that there could be changes in the nuclear scattering slope B at very small t. If this were true, the value of rho obtained in our analysis could be affected. However, we have used the same assumption (B is a constant, independent of t) as in past experiments, in part so that comparisons can be made with them. In addition, more complex forms for the nuclear differential cross section introduce more parameters to be fitted by the data. The statistical accuracy of our data is such that introduction of further parameters into the fit would not allow a statistically meaningful measurement of rho.
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19
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84927393492
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The uncertainty in rho is due almost entirely to the following: fit of Eq. (1) to the data ( +- 0.048 ), background subtraction ( +- 0.043 ), effective x distance to the detectors ( +- 0.008 ), and effective y distance to the detectors ( +- 0.007 ). All of these except the effective x distance have been determined from our own data with each uncertainty in a quantity being the statistical accuracy with which we determined that quantity.
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