Model-independent jets plus missing energy searches

被引：126

作者：

Alwall, Johan ^{[1
]}

Le, My-Phuong

Lisanti, Mariangela

Wacker, Jay G.

机构：

[1] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 01期

基金：

美国国家科学基金会;

关键词：

ELECTROWEAK SYMMETRY-BREAKING; GLUINO PRODUCTION; SUPERSYMMETRY; SQUARKS; SUPERGRAVITY; ALGORITHMS; SIGNALS; QCD;

D O I：

10.1103/PhysRevD.79.015005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a proposal for performing model-independent jets plus missing energy searches. Currently, these searches are optimized for mSUGRA and are consequently not sensitive to all kinematically accessible regions of parameter space. We show that the reach of these searches can be broadened by setting limits on the differential cross section as a function of the total visible energy and the missing energy. These measurements only require knowledge of the relevant standard model backgrounds and can be subsequently used to limit any theoretical model of new physics. We apply this approach to an example where gluinos are pair-produced and decay to the LSP through a single-step cascade and show how sensitivity to different gluino masses is altered by the presence of the decay chain. The analysis is closely based upon the current searches done at the Tevatron and our proposal requires only small modifications to the existing techniques. We find that within the minimal supersymmetric standard model, the gluino can be as light as 125 GeV. The same techniques are applicable to jets and missing energy searches at the Large Hadron Collider.

引用

页数：13

共 47 条

[1] Model-independent and quasi-model-independent search for new physics at CDF [J].

Aaltonen, T. ;

Abulencia, A. ;

Adelman, J. ;

Akimoto, T. ;

Albrow, M. G. ;

Alvarez Gonzalez, B. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Annovi, A. ;

Antos, J. ;

Apollinari, G. ;

Apresyan, A. ;

Arisawa, T. ;

Artikov, A. ;

Ashmanskas, W. ;

Aurisano, A. ;

Azfar, F. ;

Azzi-Bacchetta, P. ;

Azzurri, P. ;

Bacchetta, N. ;

Badgett, W. ;

Barnes, V. E. ;

Barnett, B. A. ;

Baroiant, S. ;

Bartsch, V. ;

Bauer, G. ;

Beauchemin, P. -H. ;

Bedeschi, F. ;

Bednar, P. ;

Behari, S. ;

Bellettini, G. ;

Bellinger, J. ;

Belloni, A. ;

Benjamin, D. ;

Beretvas, A. ;

Berry, T. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Bizjak, I. ;

Blair, R. E. ;

Blocker, C. ;

Blumenfeld, B. ;

Bocci, A. ;

Bodek, A. ;

Boisvert, V. ;

Bolla, G. ;

Bolshov, A. ;

Bortoletto, D. .

PHYSICAL REVIEW D, 2008, 78 (01)

[2]

AALTONEN T, 1934, ARXIV07122534

[3] Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb-1 of p(p)over-bar collision data at √s=1.96 TeV -: Dφ Collaboration [J].

Abazov, V. M. ;

Abbott, B. ;

Abolins, M. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Aguilo, E. ;

Ahn, S. H. ;

Ahsan, M. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Alves, G. A. ;

Anastasoaie, M. ;

Ancu, L. S. ;

Andeen, T. ;

Anderson, S. ;

Andrieu, B. ;

Anzelc, M. S. ;

Arnoud, Y. ;

Arov, M. ;

Arthaud, M. ;

Askew, A. ;

Asman, B. ;

Jesus, A. C. S. Assis ;

Atramentov, O. ;

Autermann, C. ;

Avila, C. ;

Ay, C. ;

Badaud, F. ;

Baden, A. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, S. ;

Banerjee, P. ;

Barberis, E. ;

Barfuss, A. -F. ;

Bargassa, P. ;

Baringer, P. ;

Barreto, J. ;

Bartlett, J. F. ;

Basslerr, U. ;

Bauer, D. ;

Beale, S. ;

Bean, A. ;

Begalli, M. ;

Begel, M. ;

Belanger-Champagne, C. .

PHYSICS LETTERS B, 2008, 660 (05) :449-457

[4] Search for large extra dimensions via single photon plus missing energy final states at √s=1.96 TeV [J].

Abazov, V. M. ;

Abbott, B. ;

Abolins, M. ;

Acharya, B. S. ;

Adams, M. ;

Adams, T. ;

Aguilo, E. ;

Ahn, S. H. ;

Ahsan, M. ;

Alexeev, G. D. ;

Alkhazov, G. ;

Alton, A. ;

Alverson, G. ;

Alves, G. A. ;

Anastasoaie, M. ;

Ancu, L. S. ;

Andeen, T. ;

Anderson, S. ;

Andrieu, B. ;

Anzelc, M. S. ;

Aoki, M. ;

Arnoud, Y. ;

Arov, M. ;

Arthaud, M. ;

Askew, A. ;

Asman, B. ;

Jesus, A. C. S. Assis ;

Atramentov, O. ;

Avila, C. ;

Ay, C. ;

Badaud, F. ;

Baden, A. ;

Bagby, L. ;

Baldin, B. ;

Bandurin, D. V. ;

Banerjee, P. ;

Banerjee, S. ;

Barberis, E. ;

Barfuss, A. -F. ;

Bargassa, P. ;

Baringer, P. ;

Barreto, J. ;

Bartlett, J. F. ;

Bassler, U. ;

Bauer, D. ;

Beale, S. ;

Bean, A. ;

Begalli, M. ;

Begel, M. ;

Belanger-Champagne, C. .

PHYSICAL REVIEW LETTERS, 2008, 101 (01)

[5]

Abbiendi G, 2005, EUR PHYS J C, V40, P287, DOI 10.1140/epjc/s2005-02120-6

[6] Search for large extra dimensions in the production of jets and missing transverse energy in p(p)over-bar collisions at √s=1.96 TeV [J].

Abulencia, A. ;

Acosta, D. ;

Adelman, J. ;

Affolder, T. ;

Akimoto, T. ;

Albrow, M. G. ;

Ambrose, D. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Anikeev, K. ;

Annovi, A. ;

Antos, J. ;

Aoki, M. ;

Apollinari, G. ;

Arguin, J. -F. ;

Arisawa, T. ;

Artikov, A. ;

Ashmanskas, W. ;

Attal, A. ;

Azfar, F. ;

Azzi-Bacchetta, P. ;

Azzurri, P. ;

Bacchetta, N. ;

Bachacou, H. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Baroiant, S. ;

Bartsch, V. ;

Bauer, G. ;

Beachemin, P. -H. ;

Bedeschi, F. ;

Behari, S. ;

Belforte, S. ;

Bellettini, G. ;

Bellinger, J. ;

Belloni, A. ;

Ben-Haim, E. ;

Benjamin, D. ;

Beretvas, A. ;

Beringer, J. ;

Berry, T. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Blair, R. E. ;

Blocker, C. ;

Blumenfeld, B. .

PHYSICAL REVIEW LETTERS, 2006, 97 (17)

[7]

ACTON PD, 1993, Z PHYS C PART FIELDS, V59, P1

[8] A SEARCH FOR SQUARK AND GLUINO PRODUCTION AT THE CERN PBARP COLLIDER [J].

ALITTI, J ;

ANSARI, R ;

ANSORGE, RE ;

BAGNAIA, P ;

BAREYRE, P ;

BLAYLOCK, G ;

BONAMY, P ;

BONESINI, M ;

BORER, K ;

BUSKULIC, D ;

CARBONI, G ;

CAVALLI, D ;

CAVASINNI, V ;

CENCI, P ;

CHOLLET, JC ;

CONTA, C ;

COSTA, G ;

COSTANTINI, F ;

DELLACQUA, A ;

DELOTTO, B ;

DELPRETE, T ;

DEWOLF, RS ;

DILELLA, L ;

EGAN, GF ;

EINSWEILER, KF ;

FAYARD, L ;

FEDERSPIEL, A ;

FERRARI, R ;

FRATERNALI, M ;

FROIDEVAUX, D ;

FUMAGALLI, G ;

GAILLARD, JM ;

GEIGES, R ;

GIANOTTI, F ;

GILDEMEISTER, O ;

GOSSLING, C ;

GOGGI, VG ;

GRUNENDAHL, S ;

HANSEN, JR ;

HARA, K ;

HELLMAN, S ;

HUGENTOBLER, E ;

HULTQVIST, K ;

IACOPINI, E ;

INCANDELA, J ;

JAKOBS, K ;

JENNI, P ;

KLUGE, EE ;

KOCH, T ;

KURZ, N .

PHYSICS LETTERS B, 1990, 235 (3-4) :363-372

[9] Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions [J].

Alwall, J. ;

Hoche, S. ;

Krauss, F. ;

Lavesson, N. ;

Lonnblad, L. ;

Maltoni, F. ;

Mangano, M. L. ;

Moretti, M. ;

Papadopoulos, C. G. ;

Piccinini, F. ;

Schumann, S. ;

Treccani, M. ;

Winter, J. ;

Worek, M. .

EUROPEAN PHYSICAL JOURNAL C, 2008, 53 (03) :473-500

[10] Searching for directly decaying gluinos at the Tevatron [J].

Alwall, Johan ;

Le, My-Phuong ;

Lisanti, Mariangela ;

Wacker, Jay G. .

PHYSICS LETTERS B, 2008, 666 (01) :34-37

← 1 2 3 4 5 →