Measurement of beauty photoproduction near threshold using di-electron events with the H1 detector at HERA
The cross section for ep→ebb¯Xep→ebb¯Xep \rightarrow e\, b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel bb¯→eeX′bb¯→eeX′b\bar{b} \rightarrow ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total producti...
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| Main Authors: | , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
3 October 2012
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| In: |
The European physical journal. C, Particles and fields
Year: 2012, Volume: 72, Issue: 10 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-012-2148-1 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1140/epjc/s10052-012-2148-1 Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-012-2148-1 
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| Author Notes: | the H1 Collaboration, F.D. Aaron, E. Hennekemper, K. Krüger, V. Lendermann, H. Pirumov, M. Sauter, H.-C. Schultz-Coulon, A. Schöning [und weitere] |
| Summary: | The cross section for ep→ebb¯Xep→ebb¯Xep \rightarrow e\, b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel bb¯→eeX′bb¯→eeX′b\bar{b} \rightarrow ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q 2≤1 GeV2, the inelasticity 0.05≤y≤0.65 and the pseudorapidity of the b-quarks |η(b)|,|η(b¯)|≤2|η(b)|,|η(b¯)|≤2|\eta(b)|, |\eta(\bar{b})|\leq2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks 〈P T (b)〉 down to the threshold. The results are compared to next-to-leading-order QCD predictions. |
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| Item Description: | Gesehen am 08.11.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-012-2148-1 |