Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry
- Autores
- Alvarez, Ezequiel; Coluccio Leskow, Estefanía
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We propose a charged, electrically neutral, and flavour changing Z´ model to conciliate the apparent disagreement between the important excess found in the tt¯ Tevatron forward-backward asymmetry and the null ?compatible with negative? results found in the LHC charge asymmetry. We show that this model contributes positively to the forwardbackward asymmetry, whereas naturally a new cancellation is turned on at the LHC, yielding a null, or even negative, charge asymmetry. We found the region in parameter space that is simultaneously allowed by the stringent Tevatron and LHC observables. We show that the model is safe to atomic parity violation constraints and to tj/tj¯ resonance searches, and propose a possible increase in the Z´ width to avoid ttj¯ constraints. We evaluate the constraints to the model, as well as distinctive features in the fore-coming experimental results.
Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina - Materia
-
top-quark
asymmetry
Z-prime
lhc - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/241451
Ver los metadatos del registro completo
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Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetryAlvarez, EzequielColuccio Leskow, Estefaníatop-quarkasymmetryZ-primelhchttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We propose a charged, electrically neutral, and flavour changing Z´ model to conciliate the apparent disagreement between the important excess found in the tt¯ Tevatron forward-backward asymmetry and the null ?compatible with negative? results found in the LHC charge asymmetry. We show that this model contributes positively to the forwardbackward asymmetry, whereas naturally a new cancellation is turned on at the LHC, yielding a null, or even negative, charge asymmetry. We found the region in parameter space that is simultaneously allowed by the stringent Tevatron and LHC observables. We show that the model is safe to atomic parity violation constraints and to tj/tj¯ resonance searches, and propose a possible increase in the Z´ width to avoid ttj¯ constraints. We evaluate the constraints to the model, as well as distinctive features in the fore-coming experimental results.Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaAmerican Physical Society2012-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/241451Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 86; 11; 12-2012; 1-101550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.114034info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.86.114034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:27:31Zoai:ri.conicet.gov.ar:11336/241451instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:27:31.793CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
title |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
spellingShingle |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry Alvarez, Ezequiel top-quark asymmetry Z-prime lhc |
title_short |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
title_full |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
title_fullStr |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
title_full_unstemmed |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
title_sort |
Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry |
dc.creator.none.fl_str_mv |
Alvarez, Ezequiel Coluccio Leskow, Estefanía |
author |
Alvarez, Ezequiel |
author_facet |
Alvarez, Ezequiel Coluccio Leskow, Estefanía |
author_role |
author |
author2 |
Coluccio Leskow, Estefanía |
author2_role |
author |
dc.subject.none.fl_str_mv |
top-quark asymmetry Z-prime lhc |
topic |
top-quark asymmetry Z-prime lhc |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We propose a charged, electrically neutral, and flavour changing Z´ model to conciliate the apparent disagreement between the important excess found in the tt¯ Tevatron forward-backward asymmetry and the null ?compatible with negative? results found in the LHC charge asymmetry. We show that this model contributes positively to the forwardbackward asymmetry, whereas naturally a new cancellation is turned on at the LHC, yielding a null, or even negative, charge asymmetry. We found the region in parameter space that is simultaneously allowed by the stringent Tevatron and LHC observables. We show that the model is safe to atomic parity violation constraints and to tj/tj¯ resonance searches, and propose a possible increase in the Z´ width to avoid ttj¯ constraints. We evaluate the constraints to the model, as well as distinctive features in the fore-coming experimental results. Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina Fil: Coluccio Leskow, Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina |
description |
We propose a charged, electrically neutral, and flavour changing Z´ model to conciliate the apparent disagreement between the important excess found in the tt¯ Tevatron forward-backward asymmetry and the null ?compatible with negative? results found in the LHC charge asymmetry. We show that this model contributes positively to the forwardbackward asymmetry, whereas naturally a new cancellation is turned on at the LHC, yielding a null, or even negative, charge asymmetry. We found the region in parameter space that is simultaneously allowed by the stringent Tevatron and LHC observables. We show that the model is safe to atomic parity violation constraints and to tj/tj¯ resonance searches, and propose a possible increase in the Z´ width to avoid ttj¯ constraints. We evaluate the constraints to the model, as well as distinctive features in the fore-coming experimental results. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/241451 Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 86; 11; 12-2012; 1-10 1550-7998 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/241451 |
identifier_str_mv |
Alvarez, Ezequiel; Coluccio Leskow, Estefanía; Charged Z ′ to conciliate the apparent disagreement between t t ¯ Tevatron forward-backward asymmetry and LHC charge asymmetry; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 86; 11; 12-2012; 1-10 1550-7998 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.114034 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.86.114034 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614277340594176 |
score |
13.070432 |