Naturalness of light neutralino dark matter in pMSSM after LHC, XENON100 and Planck data

被引：87

作者：

Boehm, Celine ^{[1
,2
]}

Dev, P. S. Bhupal ^{[3
]}

Mazumdar, Anupam ^{[4
,5
]}

Pukartas, Ernestas ^{[4
]}

机构：

[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

[2] U Savoie, CNRS, LAPTh, F-74941 Annecy Le Vieux, France

[3] Univ Manchester, Sch Phys & Astron, Consortium Fundamental Phys, Manchester M13 9PL, Lancs, England

[4] Univ Lancaster, Consortium Fundamental Phys, Lancaster LA1 4YB, England

[5] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 06期

关键词：

Supersymmetry Phenomenology; E(+)E(-) COLLISIONS; MISSING ENERGY; CONSTRAINTS; SEARCH; SUPERSYMMETRY; BREAKING; PROGRAM; DENSITY; EVENTS; BOUNDS;

D O I：

10.1007/JHEP06(2013)113

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We examine the possibility of a light (below 46 GeV) neutralino dark matter (DM) candidate within the 19-parameter phenomenological Minimal Supersymmetric Standard Model (pMSSM) in the light of various recent experimental results, especially from the LHC, XENON100, and Planck. We also study the extent of electroweak fine-tuning for such a light neutralino scenario in view of the null results from the searches for supersymmetry so far. Using a Markov Chain Monte Carlo likelihood analysis of the full pMSSM parameter space, we find that a neutralino DM with mass greater than or similar to 10 GeV can in principle still satisfy all the existing constraints. Our light neutralino solutions can be broadly divided into two regions: (i) The solutions in the 10-30 GeV neutralino mass range are highly fine-tuned and require the existence of light selectrons (below 100 GeV) in order to satisfy the observed DM relic density. We note that these are not yet conclusively ruled out by the existing LEP/LHC results, and a dedicated analysis valid for a non-unified gaugino mass spectrum is required to exclude this possibility. (ii) The solutions with low fine-tuning are mainly in the 30-46 GeV neutralino mass range. However, a major portion of it is already ruled out by the latest XENON100 upper limits on its spin-independent direct detection cross section, and the rest of the allowed points are within the XENON1T projected limit. Thus, we show that the allowed MSSM parameter space for a light neutralino DM below the LEP limit of 46 GeV, possible in supersymmetric models without gaugino mass unification, could be completely accessible in near future. This might be useful in view of the recent claims for positive hints of a DM signal in some direct detection experiments.

引用

页数：29

共 155 条

[1]

A T L A S collaboration, 2012, B, V7 1 6, P1

[2] Search for Dark Matter Candidates and Large Extra Dimensions in Events with a Photon and Missing Transverse Momentum in pp Collision Data at √s=7 TeV with the ATLAS Detector [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharyaa, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedrab, J. A. ;

Agustoni, M. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogana, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandriaa, F. ;

Alexaa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhrooba, M. ;

Aliev, M. ;

Alimontia, G. ;

Alison, J. ;

Allbrooke, B. M. M. .

PHYSICAL REVIEW LETTERS, 2013, 110 (01)

[3] Search for neutral MSSM Higgs bosons decaying to τ+τ- pairs in proton-proton collisions √s=7 TeV with the ATLAS detector [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdelalim, A. A. ;

Abdesselam, A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

Abramowicz, H. ;

Abreu, H. ;

Acerbi, E. ;

Acharya, B. S. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Aderholz, M. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Akiyama, A. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Aliyev, M. ;

Allport, P. P. ;

Allwood-Spiers, S. E. .

PHYSICS LETTERS B, 2011, 705 (03) :174-192

[4] Results from a Search for Light-Mass Dark Matter with a p-Type Point Contact Germanium Detector [J].

Aalseth, C. E. ;

Barbeau, P. S. ;

Bowden, N. S. ;

Cabrera-Palmer, B. ;

Colaresi, J. ;

Collar, J. I. ;

Dazeley, S. ;

de Lurgio, P. ;

Fast, J. E. ;

Fields, N. ;

Greenberg, C. H. ;

Hossbach, T. W. ;

Keillor, M. E. ;

Kephart, J. D. ;

Marino, M. G. ;

Miley, H. S. ;

Miller, M. L. ;

Orrell, J. L. ;

Radford, D. C. ;

Reyna, D. ;

Tench, O. ;

Van Wechel, T. D. ;

Wilkerson, J. F. ;

Yocum, K. M. .

PHYSICAL REVIEW LETTERS, 2011, 106 (13)

[5] Search for Zγ events with large missing transverse energy in p(p)over-bar collisions at √s = 1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Aoki, M. ;

Askew, A. ;

Atkins, S. ;

Augsten, K. ;

Avila, C. ;

Badaud, F. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Barberis, E. ;

Baringer, P. ;

Barreto, J. ;

Bartlett, J. F. ;

Bassler, U. ;

Bazterra, V. ;

Bean, A. ;

Begalli, M. ;

Bellantoni, L. ;

Beri, S. B. ;

Bernardi, G. ;

Bernhard, R. ;

Bertram, I. ;

Besancon, M. ;

Beuselinck, R. ;

Bezzubov, V. A. ;

Bhat, P. C. ;

Bhatia, S. ;

Bhatnagar, V. ;

Blazey, G. ;

Blessing, S. ;

Bloom, K. ;

Boehnlein, A. ;

Boline, D. ;

Boos, E. E. ;

Borissov, G. ;

Bose, T. ;

Brandt, A. ;

Brandt, O. ;

Brock, R. ;

Brooijmans, G. .

PHYSICAL REVIEW D, 2012, 86 (07)

[6] Search for anomalous photonic events with missing energy in e+e- collisions at √s = 130, 136 and 183 GeV [J].

Abbiendi, G ;

Ackerstaff, K ;

Alexander, G ;

Allison, J ;

Altekamp, N ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Baumann, S ;

Bechtluft, J ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Bentvelsen, S ;

Bethke, S ;

Betts, S ;

Biebel, O ;

Biguzzi, A ;

Bird, SD ;

Blobel, V ;

Bloodworth, IJ ;

Bobinski, M ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Bürgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D .

EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (01) :23-40

[7]

Abdallah J, 2005, EUR PHYS J C, V38, P395, DOI 10.1140/epjc/s2004-02051-8

[8] Searches for supersymmetric particles in e+e- collisions up to 208 GeV and interpretation of the results within the MSSM [J].

Abdallah, J ;

Abreu, P ;

Adam, W ;

Adzic, P ;

Albrecht, T ;

Alderweireld, T ;

Alemany-Fernandez, R ;

Allmendinger, T ;

Allport, PP ;

Amaldi, U ;

Amapane, N ;

Amato, S ;

Anashkin, E ;

Andreazza, A ;

Andringa, S ;

Anjos, N ;

Antilogus, P ;

Apel, WD ;

Arnoud, Y ;

Ask, S ;

Asman, B ;

Augustin, JE ;

Augustinus, A ;

Baillon, P ;

Ballestrero, A ;

Bambade, P ;

Barbier, R ;

Bardin, D ;

Barker, G ;

Baroncelli, A ;

Battaglia, M ;

Baubillier, M ;

Becks, KH ;

Begalli, M ;

Behrmann, A ;

Ben-Haim, E ;

Benekos, N ;

Benvenuti, A ;

Berat, C ;

Berggren, M ;

Berntzon, L ;

Bertrand, D ;

Besancon, M ;

Besson, N ;

Bloch, D ;

Blom, M ;

Bluj, M ;

Bonesini, M ;

Boonekamp, M ;

Booth, PSL .

EUROPEAN PHYSICAL JOURNAL C, 2003, 31 (04) :421-479

[9] Fitting the phenomenological MSSM [J].

AbdusSalam, Shehu S. ;

Allanach, Benjamin C. ;

Quevedo, Fernando ;

Feroz, Farhan ;

Hobson, Mike .

PHYSICAL REVIEW D, 2010, 81 (09)

[10] Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum [J].

Ackermann, M. ;

Ajello, M. ;

Albert, A. ;

Baldini, L. ;

Barbiellini, G. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Brigida, M. ;

Buehler, R. ;

Buson, S. ;

A. Caliandro, G. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cecchi, C. ;

Charles, E. ;

Chekhtman, A. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

D'Ammando, F. ;

de Palma, F. ;

Dermer, C. D. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Drlica-Wagner, A. ;

Edmonds, Y. ;

Essig, R. ;

Favuzzi, C. ;

Fegan, S. J. ;

Focke, W. B. ;

Fukazawa, Y. ;

Funk, S. ;

Fusco, P. ;

Gargano, F. ;

Gasparrini, D. ;

Germani, S. ;

Giglietto, N. ;

Giordano, F. ;

Giroletti, M. ;

Glanzman, T. ;

Godfrey, G. ;

Grenier, I. A. .

PHYSICAL REVIEW D, 2012, 86 (02)

← 1 2 3 4 5 6 7 8 9 10 →