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Using multiplicity as a fractional cross-section estimation for centrality in PHOBOS

Richard S Hollis for the PHOBOS Collaboration,B. B. Back,M. D. Baker,M. Ballintijn,D. S. Barton,R. R. Betts,A. A. Bickley,R. Bindel,Wit Busza,A. Carroll,Z. Chai,M.P. Decowski,E. Oliver Garcia,T. Gburek,N. George,Kristján Herlache Gulbrandsen,C. Halliwell,J. Hamblen,M. Hauer,C. M. Henderson,David Jonathan Hofman,R. S. Hollis,R. Holyłński,B. Holzman,A. Iordanova,E. Johnson,J. L. Kane,Nawazish A. Khan,P. Kulinich,C. M. Kuo,W. Lin,S. Manly,Alice Mignerey,R. Nouicer,A. Olszewski,R. Pak,C. Reed,Christof Roland,Gunther Roland,J. Sagerer,H. Seals,I. Sedykh,Christopher Smith,M. A. Stankiewicz,Peter Steinberg,George Stephans,А. Суханов,Marguerite Tonjes,Adam Trzupek,C. Vale,G. J. van Nieuwenhuizen,S. S. Vaurynovich,R. Verdier,Gabor Istvan Veres,E. A. Wenger,F. L. H. Wolfs,Barbara Wosiek,Krzysztof Wieslaw Wozniak,Bolesław Wysłouch

Centrality

Collision

Multiplicity (mathematics)

2005

Collision centrality is a valuable parameter used in relativistic nuclear physics which relates to geometrical quantities such as the number of participating nucleons. PHOBOS utilizes a multiplicity measurement as a means to estimate fractional cross-section of a collision event-by-event. From this, the centrality of this collision can be deduced. The details of the centrality determination depend both on the collision system and collision energy. Presented here are the techniques developed over the course of the RHIC program that are used by PHOBOS to extract the centrality. Possible biases that have to be overcome before a final measurement can be interpreted are discussed.

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“Using multiplicity as a fractional cross-section estimation for centrality in PHOBOS” is a paper by Richard S Hollis for the PHOBOS Collaboration B. B. Back M. D. Baker M. Ballintijn D. S. Barton R. R. Betts A. A. Bickley R. Bindel Wit Busza A. Carroll Z. Chai M.P. Decowski E. Oliver Garcia T. Gburek N. George Kristján Herlache Gulbrandsen C. Halliwell J. Hamblen M. Hauer C. M. Henderson David Jonathan Hofman R. S. Hollis R. Holyłński B. Holzman A. Iordanova E. Johnson J. L. Kane Nawazish A. Khan P. Kulinich C. M. Kuo W. Lin S. Manly Alice Mignerey R. Nouicer A. Olszewski R. Pak C. Reed Christof Roland Gunther Roland J. Sagerer H. Seals I. Sedykh Christopher Smith M. A. Stankiewicz Peter Steinberg George Stephans А. Суханов Marguerite Tonjes Adam Trzupek C. Vale G. J. van Nieuwenhuizen S. S. Vaurynovich R. Verdier Gabor Istvan Veres E. A. Wenger F. L. H. Wolfs Barbara Wosiek Krzysztof Wieslaw Wozniak Bolesław Wysłouch published in 2005. It has an Open Access status of “gold”. You can read and download a PDF Full Text of this paper here.