Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN pp̄ collider

UA1 Collaboration; R. Edgecock

doi:10.1016/0370-2693(86)91065-8

Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN pp̄ collider

UA1 Collaboration, R. Edgecock

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

Angular distributions of high-mass jet pairs (180<m_2J<350 GeV) have been measured in the UA1 experiment at the CERN pp̄ Collider ( s=630GeV). We show that angular distributions are independent of the subprocess centre-of-mass (CM) energy over this range, and use the data to put constraints on the definition of the Q² scale. The distribution for the very high mass jet pairs (240<m_2J<300 GeV) has also been used to obtain a lower limit on the energy scale Λ_c of compositeness of quarks. We find Λ_c>415 GeV at 95% confidence level.

Original language	English
Pages (from-to)	244-250
Number of pages	7
Journal	Physics Letters B
Volume	177
Issue number	2
DOIs	https://doi.org/10.1016/0370-2693(86)91065-8
Publication status	Published - 11 Sept 1986
Externally published	Yes

Access to Document

10.1016/0370-2693(86)91065-8Licence: Unspecified

Cite this

@article{5dec5b8b1d054190afbc77c09738430c,

title = "Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN p{\=p} collider",

abstract = "Angular distributions of high-mass jet pairs (1802J<350 GeV) have been measured in the UA1 experiment at the CERN p{\=p} Collider ( s=630GeV). We show that angular distributions are independent of the subprocess centre-of-mass (CM) energy over this range, and use the data to put constraints on the definition of the Q2 scale. The distribution for the very high mass jet pairs (240 2J<300 GeV) has also been used to obtain a lower limit on the energy scale Λc of compositeness of quarks. We find Λc>415 GeV at 95\% confidence level.",

keywords = "High energy density physics, CERN collider",

author = "\{UA1 Collaboration\} and G. Arnison and C. Albajar and Albrow, \{M. G.\} and Allkofer, \{O. C.\} and A. Astbury and B. Aubert and T. Axon and C. Bacci and T. Bacon and Batley, \{J. R.\} and G. Bauer and J. Bellinger and A. Bettini and A. B{\'e}zaguet and Bock, \{R. K.\} and K. Bos and E. Buckley and G. Busetto and P. Catz and P. Cennini and S. Centro and F. Ceradini and G. Ciapetti and S. Cittolin and D. Clarke and D. Cline and C. Cochet and J. Colas and P. Colas and M. Corden and Coughlan, \{J. A.\} and G. Cox and D. Dau and M. Debeer and Debrion, \{J. P.\} and M. Degiorgi and Negra, \{M. Della\} and M. Demoulin and B. Denby and D. Denegri and A. Diciaccio and L. Dobrzynski and J. Dorenbosch and Dowell, \{J. D.\} and E. Duchovni and R. Edgecock and K. Eggert and E. Eisenhandler and N. Ellis and P. Erhard",

year = "1986",

month = sep,

day = "11",

doi = "10.1016/0370-2693(86)91065-8",

language = "English",

volume = "177",

pages = "244--250",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier BV",

number = "2",

}

TY - JOUR

T1 - Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN pp̄ collider

AU - UA1 Collaboration

AU - Arnison, G.

AU - Albajar, C.

AU - Albrow, M. G.

AU - Allkofer, O. C.

AU - Astbury, A.

AU - Aubert, B.

AU - Axon, T.

AU - Bacci, C.

AU - Bacon, T.

AU - Batley, J. R.

AU - Bauer, G.

AU - Bellinger, J.

AU - Bettini, A.

AU - Bézaguet, A.

AU - Bock, R. K.

AU - Bos, K.

AU - Buckley, E.

AU - Busetto, G.

AU - Catz, P.

AU - Cennini, P.

AU - Centro, S.

AU - Ceradini, F.

AU - Ciapetti, G.

AU - Cittolin, S.

AU - Clarke, D.

AU - Cline, D.

AU - Cochet, C.

AU - Colas, J.

AU - Colas, P.

AU - Corden, M.

AU - Coughlan, J. A.

AU - Cox, G.

AU - Dau, D.

AU - Debeer, M.

AU - Debrion, J. P.

AU - Degiorgi, M.

AU - Negra, M. Della

AU - Demoulin, M.

AU - Denby, B.

AU - Denegri, D.

AU - Diciaccio, A.

AU - Dobrzynski, L.

AU - Dorenbosch, J.

AU - Dowell, J. D.

AU - Duchovni, E.

AU - Edgecock, R.

AU - Eggert, K.

AU - Eisenhandler, E.

AU - Ellis, N.

AU - Erhard, P.

PY - 1986/9/11

Y1 - 1986/9/11

N2 - Angular distributions of high-mass jet pairs (1802J<350 GeV) have been measured in the UA1 experiment at the CERN pp̄ Collider ( s=630GeV). We show that angular distributions are independent of the subprocess centre-of-mass (CM) energy over this range, and use the data to put constraints on the definition of the Q2 scale. The distribution for the very high mass jet pairs (240 2J<300 GeV) has also been used to obtain a lower limit on the energy scale Λc of compositeness of quarks. We find Λc>415 GeV at 95% confidence level.

AB - Angular distributions of high-mass jet pairs (1802J<350 GeV) have been measured in the UA1 experiment at the CERN pp̄ Collider ( s=630GeV). We show that angular distributions are independent of the subprocess centre-of-mass (CM) energy over this range, and use the data to put constraints on the definition of the Q2 scale. The distribution for the very high mass jet pairs (240 2J<300 GeV) has also been used to obtain a lower limit on the energy scale Λc of compositeness of quarks. We find Λc>415 GeV at 95% confidence level.

KW - High energy density physics

KW - CERN collider

UR - https://www.scopus.com/pages/publications/3042895090

U2 - 10.1016/0370-2693(86)91065-8

DO - 10.1016/0370-2693(86)91065-8

M3 - Article

AN - SCOPUS:3042895090

SN - 0370-2693

VL - 177

SP - 244

EP - 250

JO - Physics Letters B

JF - Physics Letters B

IS - 2

ER -

Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN pp̄ collider

Abstract

Access to Document

Other files and links

Fingerprint

Cite this