Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model

被引：45

作者：

De Cruz, Lesley ^{[1
]}

Ryckebusch, Jan ^{[1
]}

Vrancx, Tom ^{[1
]}

Vancraeyveld, Pieter ^{[1
]}

机构：

[1] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 01期

关键词：

BARYON MASSES; K+ MESONS; GAMMA-P; ELECTROPRODUCTION; POLARIZATION; ENERGIES; K+LAMBDA; PION; ALGORITHM; SIGMA(0);

D O I：

10.1103/PhysRevC.86.015212

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We address the issue of unbiased model selection and propose a methodology based on Bayesian inference to extract physical information from kaon photoproduction gamma p -> K+ Lambda data. We use the single-channel Reggeplus-resonance (RPR) framework for gamma p -> K+ Lambda to illustrate the proposed strategy. The Bayesian evidence Z is a quantitative measure for the model's fitness given the world's data. We present a numerical method for performing the multidimensional integrals in the expression for the Bayesian evidence. We use the gamma p -> K+ Lambda data with an invariant energy W > 2.6 GeV in order to constrain the background contributions in the RPR framework with Bayesian inference. Next, the resonance information is extracted from the analysis of differential cross sections and single- and double-polarization observables. This background and resonance content constitutes the basis of a model, which is coined RPR-2011. It is shown that RPR-2011 yields a comprehensive account of the kaon photoproduction data and provides reasonable predictions for e + p -> e' + K+ + Lambda observables.

引用

页数：19

共 85 条

[1] Exclusive electroproduction of K+Λ and K+Σ0 final states at Q2=0.030-0.055 (GeV/c)2 [J].

Achenbach, P. ;

Gayoso, C. Ayerbe ;

Bernauer, J. C. ;

Bianchin, S. ;

Boehm, R. ;

Borodina, O. ;

Bosnar, D. ;

Boesz, M. ;

Bozkurt, V. ;

Bydzovsky, P. ;

Debenjak, L. ;

Distler, M. O. ;

Esser, A. ;

Friscic, I. ;

Rodriguez, M. Gomez ;

Goekuezuem, B. ;

Griessinger, K. ;

Jennewein, P. ;

Kim, E. ;

Makek, M. ;

Merkel, H. ;

Minami, S. ;

Mueller, U. ;

Nakajima, D. ;

Nungesser, L. ;

Oezel-Tashenov, B. ;

Pochodzalla, J. ;

Rappold, Ch. ;

Saito, T. R. ;

Majos, S. Sanchez ;

Schlimme, B. S. ;

Sirca, S. ;

Weinriefer, M. ;

Yoon, C. J. .

EUROPEAN PHYSICAL JOURNAL A, 2012, 48 (02) :1-8

[2] KAON PHOTOPRODUCTION - DATA CONSISTENCY, COUPLING-CONSTANTS, AND POLARIZATION OBSERVABLES [J].

ADELSECK, RA ;

SAGHAI, B .

PHYSICAL REVIEW C, 1990, 42 (01) :108-127

[3] PHOTOPRODUCTION OF K+LAMBDA-O ON POLARIZED PROTONS [J].

ALTHOFF, KH ;

GIES, M ;

HERR, H ;

HILGER, E ;

KADANSKY, V ;

KAUL, O ;

KONIGSMANN, K ;

MENZE, D ;

MEYER, W ;

MICZAIKA, T ;

SCHWILLE, WJ ;

WOLF, D .

NUCLEAR PHYSICS B, 1978, 137 (03) :269-275

[4] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[5] Strong decay of low-lying S11 and D13 nucleon resonances to pseudoscalar mesons and octet baryons [J].

An, C. S. ;

Saghai, B. .

PHYSICAL REVIEW C, 2011, 84 (04)

[6] P-wave excited baryons from pion- and photo-induced hyperon production [J].

Anisovich, A. V. ;

Klempt, E. ;

Nikonov, V. A. ;

Sarantsev, A. V. ;

Thoma, U. .

EUROPEAN PHYSICAL JOURNAL A, 2011, 47 (02) :1-23

[7] Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial-wave analysis [J].

Anisovich, A. V. ;

Klempt, E. ;

Nikonov, V. A. ;

Matveev, M. A. ;

Sarantsev, A. V. ;

Thoma, U. .

EUROPEAN PHYSICAL JOURNAL A, 2010, 44 (02) :203-220

[8]

[Anonymous], 1961, THEORY PROBABILITY

[9]

[Anonymous], SCHAUMS OUTLINE PROB

[10] ROOT - A C++ framework for petabyte data storage, statistical analysis and visualization [J].

Antcheva, I. ;

Ballintijn, M. ;

Bellenot, B. ;

Biskup, M. ;

Brun, R. ;

Buncic, N. ;

Canal, Ph ;

Casadei, D. ;

Couet, O. ;

Fine, V. ;

Franco, L. ;

Ganis, G. ;

Gheata, A. ;

Maline, D. Gonzalez ;

Goto, M. ;

Iwaszkiewicz, J. ;

Kreshuk, A. ;

Segura, D. Marcos ;

Maunder, R. ;

Moneta, L. ;

Naumann, A. ;

Offermann, E. ;

Onuchin, V. ;

Panacek, S. ;

Rademakers, F. ;

Russo, P. ;

Tadel, M. .

COMPUTER PHYSICS COMMUNICATIONS, 2011, 182 (06) :1384-1385

← 1 2 3 4 5 6 7 8 9 →