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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.00652 |
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| _version_ | 1866909847974313984 |
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| author | Dokshitzer, Yu. L. Webber, B. R. |
| author_facet | Dokshitzer, Yu. L. Webber, B. R. |
| contents | We examine hadron multiplicity fluctuations in hard processes and confront analytic QCD predictions with the pattern of multiplicity fluctuations observed in $e^+e^-$ annihilation and high-$p_t$ jets produced in $pp$ collisions at the LHC. Special emphasis is placed on high-multiplicity fluctuations in jets. Selecting events with hadronic multiplicity exceeding the average value by a factor of 3 or more in various processes has been a source of conundrums for many years. We discuss two recent high-multiplicity puzzles and attempt to reveal their common origin. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_00652 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hadron multiplicity fluctuations in perturbative QCD Dokshitzer, Yu. L. Webber, B. R. High Energy Physics - Phenomenology We examine hadron multiplicity fluctuations in hard processes and confront analytic QCD predictions with the pattern of multiplicity fluctuations observed in $e^+e^-$ annihilation and high-$p_t$ jets produced in $pp$ collisions at the LHC. Special emphasis is placed on high-multiplicity fluctuations in jets. Selecting events with hadronic multiplicity exceeding the average value by a factor of 3 or more in various processes has been a source of conundrums for many years. We discuss two recent high-multiplicity puzzles and attempt to reveal their common origin. |
| title | Hadron multiplicity fluctuations in perturbative QCD |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.00652 |