Search for scalar top quark production in (Formula presented.) collisions at (Formula presented.) = 1.96 TeV

CDF collaboration

doi:10.1007/JHEP10(2012)158

Search for scalar top quark production in (Formula presented.) collisions at (Formula presented.) = 1.96 TeV

CDF collaboration

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Abstract

We report on a search for the supersymmetric partner of the top quark (scalar top) decaying into a charm quark and a neutralino in (Formula presented.) collisions at (Formula presented.) = 1.96TeV. The data sample, collected by the CDF II detector at the Fermilab Tevatron, corresponds to an integrated luminosity of 2.6 fb⁻¹. Candidate events are selected by requiring two or more jets and a large imbalance in the transverse momentum. To enhance the analysis sensitivity, at least one of the jets is required to be identified as originating from a charm quark using an algorithm specifically designed for this analysis. The selected events are in good agreement with standard model predictions. In the case of large mass splitting between the scalar top quark and the neutralino we exclude a scalar top quark mass below 180 GeV/c² at 95% confidence level.

Original language	English (US)
Article number	158
Journal	Journal of High Energy Physics
Volume	2012
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2012)158
State	Published - Oct 25 2012

Keywords

Hadron-Hadron Scattering

ASJC Scopus subject areas

Nuclear and High Energy Physics

Online availability

10.1007/JHEP10(2012)158

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@article{36e213e259674ab19894d2786bfe7923,

title = "Search for scalar top quark production in (Formula presented.) collisions at (Formula presented.) = 1.96 TeV",

abstract = "We report on a search for the supersymmetric partner of the top quark (scalar top) decaying into a charm quark and a neutralino in (Formula presented.) collisions at (Formula presented.) = 1.96TeV. The data sample, collected by the CDF II detector at the Fermilab Tevatron, corresponds to an integrated luminosity of 2.6 fb−1. Candidate events are selected by requiring two or more jets and a large imbalance in the transverse momentum. To enhance the analysis sensitivity, at least one of the jets is required to be identified as originating from a charm quark using an algorithm specifically designed for this analysis. The selected events are in good agreement with standard model predictions. In the case of large mass splitting between the scalar top quark and the neutralino we exclude a scalar top quark mass below 180 GeV/c2 at 95% confidence level.",

keywords = "Hadron-Hadron Scattering",

author = "{CDF collaboration} and T. Aaltonen and {{\'A}lvarez Gonz{\'a}lez}, B. and S. Amerio and D. Amidei and A. Anastassov and A. Annovi and J. Antos and G. Apollinari and Appel, {J. A.} and T. Arisawa and A. Artikov and J. Asaadi and W. Ashmanskas and B. Auerbach and A. Aurisano and F. Azfar and W. Badgett and T. Bae and A. Barbaro-Galtieri and Barnes, {V. E.} and Barnett, {B. A.} and P. Barria and P. Bartos and M. Bauce and F. Bedeschi and S. Behari and G. Bellettini and J. Bellinger and D. Benjamin and A. Beretvas and A. Bhatti and D. Bisello and I. Bizjak and Bland, {K. R.} and B. Blumenfeld and A. Bocci and A. Bodek and D. Bortoletto and J. Boudreau and A. Boveia and L. Brigliadori and C. Bromberg and E. Brucken and J. Budagov and Budd, {H. S.} and K. Burkett and G. Busetto and S. Errede and Neubauer, {M. S.} and K. Pitts",

year = "2012",

month = oct,

day = "25",

doi = "10.1007/JHEP10(2012)158",

language = "English (US)",

volume = "2012",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "10",

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TY - JOUR

T1 - Search for scalar top quark production in (Formula presented.) collisions at (Formula presented.) = 1.96 TeV

AU - CDF collaboration

AU - Aaltonen, T.

AU - Álvarez González, B.

AU - Amerio, S.

AU - Amidei, D.

AU - Anastassov, A.

AU - Annovi, A.

AU - Antos, J.

AU - Apollinari, G.

AU - Appel, J. A.

AU - Arisawa, T.

AU - Artikov, A.

AU - Asaadi, J.

AU - Ashmanskas, W.

AU - Auerbach, B.

AU - Aurisano, A.

AU - Azfar, F.

AU - Badgett, W.

AU - Bae, T.

AU - Barbaro-Galtieri, A.

AU - Barnes, V. E.

AU - Barnett, B. A.

AU - Barria, P.

AU - Bartos, P.

AU - Bauce, M.

AU - Bedeschi, F.

AU - Behari, S.

AU - Bellettini, G.

AU - Bellinger, J.

AU - Benjamin, D.

AU - Beretvas, A.

AU - Bhatti, A.

AU - Bisello, D.

AU - Bizjak, I.

AU - Bland, K. R.

AU - Blumenfeld, B.

AU - Bocci, A.

AU - Bodek, A.

AU - Bortoletto, D.

AU - Boudreau, J.

AU - Boveia, A.

AU - Brigliadori, L.

AU - Bromberg, C.

AU - Brucken, E.

AU - Budagov, J.

AU - Budd, H. S.

AU - Burkett, K.

AU - Busetto, G.

AU - Errede, S.

AU - Neubauer, M. S.

AU - Pitts, K.

PY - 2012/10/25

Y1 - 2012/10/25

N2 - We report on a search for the supersymmetric partner of the top quark (scalar top) decaying into a charm quark and a neutralino in (Formula presented.) collisions at (Formula presented.) = 1.96TeV. The data sample, collected by the CDF II detector at the Fermilab Tevatron, corresponds to an integrated luminosity of 2.6 fb−1. Candidate events are selected by requiring two or more jets and a large imbalance in the transverse momentum. To enhance the analysis sensitivity, at least one of the jets is required to be identified as originating from a charm quark using an algorithm specifically designed for this analysis. The selected events are in good agreement with standard model predictions. In the case of large mass splitting between the scalar top quark and the neutralino we exclude a scalar top quark mass below 180 GeV/c2 at 95% confidence level.

AB - We report on a search for the supersymmetric partner of the top quark (scalar top) decaying into a charm quark and a neutralino in (Formula presented.) collisions at (Formula presented.) = 1.96TeV. The data sample, collected by the CDF II detector at the Fermilab Tevatron, corresponds to an integrated luminosity of 2.6 fb−1. Candidate events are selected by requiring two or more jets and a large imbalance in the transverse momentum. To enhance the analysis sensitivity, at least one of the jets is required to be identified as originating from a charm quark using an algorithm specifically designed for this analysis. The selected events are in good agreement with standard model predictions. In the case of large mass splitting between the scalar top quark and the neutralino we exclude a scalar top quark mass below 180 GeV/c2 at 95% confidence level.

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=84926615259&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84926615259&partnerID=8YFLogxK

U2 - 10.1007/JHEP10(2012)158

DO - 10.1007/JHEP10(2012)158

M3 - Article

AN - SCOPUS:84926615259

SN - 1126-6708

VL - 2012

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 158

ER -

Search for scalar top quark production in (Formula presented.) collisions at (Formula presented.) = 1.96 TeV

Abstract

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