Finite temperature pion vector form factors in chiral perturbation theory
| dc.contributor.author | Llanes Estrada, Felipe José | |
| dc.contributor.author | Gómez Nicola, Ángel | |
| dc.contributor.author | Peláez Sagredo, José Ramón | |
| dc.date.accessioned | 2023-06-20T10:38:17Z | |
| dc.date.available | 2023-06-20T10:38:17Z | |
| dc.date.issued | 2005-01-27 | |
| dc.description | © 2004 Elsevier B.V. All rights reserved. Work supported from the Spanish CICYT projects, FPA2000 0956, PB98-0782 and BFM2000-1326. | |
| dc.description.abstract | We discuss the thermal behaviour of the pion vector form factors and calculate them in one-loop chiral perturbation theory. The perturbative result is used to analyze the T dependent electromagnetic pion charge radius, obtaining a rough estimate of the deconfinement critical temperature. Imposing thermal unitarity, we generate the ρ resonance pole for the form factor in the center of mass frame. The ρ peak height in the modulus of the form factor decreasesfor increasing temperature, while its width increases and the peak position is slightly shifted downwards for T _ 150 MeV. These results point in the direction suggested by many analysis of dilepton production data in relativistic heavy ion collisions. | |
| dc.description.department | Depto. de Física Teórica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Spanish CICYT | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/23305 | |
| dc.identifier.doi | 10.1016/j.physletb.2004.12.008 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1016/j.physletb.2004.12.008 | |
| dc.identifier.relatedurl | http://arxiv.org/abs/hep-ph/0405273 | |
| dc.identifier.relatedurl | http://www.sciencedirect.com | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/50857 | |
| dc.journal.title | Physics Letters B | |
| dc.language.iso | eng | |
| dc.page.final | 360 | |
| dc.page.initial | 351 | |
| dc.publisher | Elsevier Science Bv | |
| dc.relation.projectID | FPA2000-0956 | |
| dc.relation.projectID | PB98-0782 | |
| dc.relation.projectID | BFM2000-1326 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 53 | |
| dc.subject.keyword | Cross-Section Measurements | |
| dc.subject.keyword | Inverse Amplitude Method | |
| dc.subject.keyword | Heavy-Ion Collisions | |
| dc.subject.keyword | Symmetry Restoration | |
| dc.subject.keyword | Phase Transition | |
| dc.subject.keyword | Nuclear-Matter | |
| dc.subject.keyword | Au Collisions | |
| dc.subject.keyword | Cern Sps | |
| dc.subject.keyword | One-Loop | |
| dc.subject.keyword | Scattering | |
| dc.subject.ucm | Física (Física) | |
| dc.subject.unesco | 22 Física | |
| dc.title | Finite temperature pion vector form factors in chiral perturbation theory | |
| dc.type | journal article | |
| dc.volume.number | 606 | |
| dcterms.references | [1] S. Weinberg, Physica A 96 (1979) 327. [2] J. Gasser, H. Leutwyler, Ann. Phys. 158 (1984) 142. [3] J. Gasser, H. Leutwyler, Phys. Lett. B 184 (1987) 83. [4] A. Gómez Nicola, F.J. Llanes-Estrada, J.R. Peláez, Phys. Lett. B 550 (2002) 55. [5] A. Dobado, A. Gómez Nicola, F. Llanes-Estrada, J.R. Peláez, Phys. Rev. C 66 (2002) 055201. [6] A. Gomez Nicola, J.R. Pelaez, A. Dobado, F.J. Llanes Estrada, AIP Conf. Proc. 660 (2003) 156, hep ph/0212121. [7] M. Masera, et al., HELIOS/3 Collaboration, Nucl. Phys. A 590 (1995) 93c; G. Agakichiev, et al., CERES Collaboration, Phys. Rev. Lett. 75 (1995) 1272; G. Agakichiev, et al., Phys. Lett. B 442 (1998) 405; G. Agakichiev, et al., Nucl. Phys. A 661 (1999) 23; D. Adamová, et al., CERES/NA45 Collaboration, Phys. Rev. Lett. 91 (2003) 042301. [8] R.J. Porter, et al., DLS Collaboration, Phys. Rev. Lett. 79 (1997) 1229. [9] G.Q. Li, C.M. Ko, G.E. Brown, Phys. Rev. Lett. 75 (1995) 4007. [10] V. Koch, C. Song, Phys. Rev. C 54 (1996) 1903. [11] H.-J. Schulze, D. Blaschke, Phys. Lett. B 386 (1996) 429; H.-J. Schulze, D. Blaschke, Part. Nucl. Lett. 119 (2004) 27. [12] R. Rapp, J. Wambach, Eur. Phys. J. A 6 (1999) 415. [13] R. Rapp, J. Wambach, Adv. Nucl. Phys. 25 (2000) 1; A. Ayala, hep-ph/0305170; T. Renk, A. Mishra, Phys. Rev. C 69 (2004) 054905. [14] V.L. Eletsky, M. Belkacem, P.J. Ellis, J.I. Kapusta, Phys. Rev. C 64 (2001) 035202. [15] K. Kajantie, J. Kapusta, L. McLerran, A. Mekjian, Phys. Rev. D 34 (1986) 2746. [16] C. Gale, J. Kapusta, Phys. Rev. C 35 (1987) 2107; C. Gale, J. Kapusta, Phys. Rev. C 38 (1988) 2659. [17] C. Song, V. Koch, Phys. Rev. C 54 (1996) 3218. [18] C.A. Dominguez, M. Loewe, J.S. Rozowsky, Phys. Lett. B 335 (1994) 506. [19] M. Le Bellac, Thermal Field Theory, Cambridge Univ. Press, Cambridge, 1996. [20] J. Bijnens, G. Colangelo, P. Talavera, JHEP 9805 (1998) 014. [21] K. Hagiwara, et al., Phys. Rev. D 66 (2002) 010001. [22] J.I. Kapusta, Finite-Temperature Field Theory, Cambridge Univ. Press, Cambridge, 1989. [23] P. Gerber, H. Leutwyler, Nucl. Phys. B 321 (1989) 387; J.R. Peláez, Phys. Rev. D 66 (2002) 096007. [24] J.F. Donoghue, C. Ramirez, G. Valencia, Phys. Rev. D 39 (1989) 1947; G. Ecker, J. Gasser, A. Pich, E. de Rafael, Nucl. Phys. B 321 (1989) 311. [25] M. Dey, V.L. Eletsky, B.L. Ioffe, Phys. Lett. B 252 (1990) 620. [26] H.A. Weldon, Ann. Phys. 214 (1992) 152. [27] T.N. Truong, Phys. Rev. Lett. 61 (1988) 2526; T.N. Truong, Phys. Rev. Lett. 67 (1991) 2260; A. Dobado, M.J. Herrero, T.N. Truong, Phys. Lett. B 235 (1990) 134; A. Dobado, J.R. Peláez, Phys. Rev. D 47 (1993) 4883; A. Dobado, J.R. Peláez, Phys. Rev. D 56 (1997) 3057. [28] A. Dobado, M.J. Herrero, J.R. Peláez, E. Ruiz Morales, Phys. Rev. D 62 (2000) 055011. [29] S.D. Protopopescu, et al., Phys. Rev. D 7 (1973) 1279; P. Estabrooks, A.D. Martin, Nucl. Phys. B 79 (1974) 301. [30] R.R. Akhmetshin, et al., CMD-2 Collaboration, Phys. Lett. B 578 (2004) 285; S. Anderson, et al., CLEO Collaboration, Phys. Rev. D 61 (2000) 112002. [31] T. Hannah, Phys. Rev. D 55 (1997) 5613. [32] J. Adams, et al., STAR Collaboration, Phys. Rev. Lett. 92 (2004) 092301. [33] R.D. Pisarski, Phys. Rev. D 52 (1995) R3773. [34] S. Pratt, W. Bauer, Phys. Rev. C 68 (2003) 064905. | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 6290fe55-04e6-4532-91e6-1df735bdbdca | |
| relation.isAuthorOfPublication | 574aa06c-6665-4e9a-b925-fa7675e8c592 | |
| relation.isAuthorOfPublication | 70900239-cb8b-49f3-931f-9dc6a8b7d8d5 | |
| relation.isAuthorOfPublication.latestForDiscovery | 6290fe55-04e6-4532-91e6-1df735bdbdca |
