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Title: Bose-Einstein correlations in ep collisions at HERA using the H1 detector
Author: Rizvi, Syed Eram Abbas
ISNI:       0000 0001 2426 2206
Awarding Body: Queen Mary University of London
Current Institution: Queen Mary, University of London
Date of Award: 1997
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The two-particle correlation function is measured for neutral current DIS events with 5 < Q2 < 100 GeV2 with data taken by the H1 detector at HERA with -vFs = 300 GeV during the 1994 run period corresponding to an integrated luminosity of 1.3 pb-1. The diffractive and non-diffractive selections of the data are analysed separately, and both exhibit an enhanced correlation for small 4-momentum difference for like-sign pairs as expected from Bose-Einstein interference in the production amplitudes for identical boson pairs. Fits using a Gaussian parametrisation of the enhancement yield no statistically significant difference between the diffractive and non-diffractive samples. The non-diffractive data sample is further separately analysed in three bins of each of the kinematic variables x, Q2, and W as well as mean particle density, (dn/dry*), in the hadronic centre of mass frame. Of these a strong evolution of the Gaussian fit parameters is observed with increasing particle density only. The non-diffractive data are also compared to three fit parameterisations: Gaussian, exponential, and power-law. The most favourable X2 is obtained for the exponential fit, though the power-law attains a similarly successful description of the data in the region of low 4-momentum difference.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Physics ; Bose-Einstein Correlations ; HERA Collider