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Deep Inelastic Scattering 1
Electron production 1
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Abramowicz, H. 1
Abt, I. 1
Adamczyk, L. 1
Adamus, M. 1
Adler, Volker 1
Aghuzumtsyan, G. 1
Allfrey, Philip Daniel 1
Antonelli, S. 1
Antonioli, P. 1
Antonov, A. 1

Event shapes in deep inelastic scattering at HERA.

The ZEUS collaboration Chekanov, S. ; Derrick, M. ; Magill, S. ; et al.

Nucl.Phys.B 767 (2007) 1-28, 2007.

https://inspirehep.net/literature/714503 Inspire Record 714503 DOI 10.17182/hepdata.11818 https://doi.org/10.17182/hepdata.11818

Mean values and differential distributions of event-shape variables have been studied in neutral current deep inelastic scattering using an integrated {luminosity} of 82.2 pb$^{-1}$ collected with the ZEUS detector at HERA. The kinematic range was $80 < Q^2 < 20 480\gev^2$ and $0.0024 < x < 0.6$, where $Q^2$ is the virtuality of the exchanged boson and $x$ is the Bjorken variable. The data are compared with a model based on a combination of next-to-leading-order QCD calculations with next-to-leading-logarithm corrections and the Dokshitzer-Webber non-perturbative power corrections. The power-correction method provides a reasonable description of the data for all event-shape variables studied. Nevertheless, the lack of consistency of the determination of $\alpha_s$ and of the non-perturbative parameter of the model, $\albar$, suggests the importance of higher-order processes that are not yet included in the model.

69 data tables

Table 1

Mean value of the event shape variable 1-THRUST(C=T).

Table 2

Mean value of the event shape variable B(C=T).

Table 3

Mean value of the event shape variable RHO**2.

Table 4

Mean value of the event shape variable C-PARAM.

Table 5

Mean value of the event shape variable 1-THRUST(C=G).

Table 6

Mean value of the event shape variable B(C=G).

Table 7

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 8

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 9

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 10

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 11

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 12

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 13

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 14

Differential distribution for event shape RHO**2 corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 15

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 16

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 17

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 18

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 19

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 20

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 21

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 22

Differential distribution for event shape C-PARAM corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 23

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 24

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 25

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 26

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 27

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 28

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 29

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 30

Differential distribution for event shape THRUST(C=T) corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 31

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 32

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 33

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 34

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 35

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 36

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 37

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 38

Differential distribution for event shape B(C=T) corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 39

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 40

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 41

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 42

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 43

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 44

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 45

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 46

Differential distribution for event shape THRUST(C=G) corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 47

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 48

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 49

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 50

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 51

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 52

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 53

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 54

Differential distribution for event shape B(C=G) corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 55

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 56

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 57

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 58

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 59

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 60

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 61

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

Table 62

Differential distribution for event shape Y2 corrected to the hadron level for the Q**2 range 10240 TO 20480 GeV**2.

Table 63

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 80 TO 160 GeV**2.

Table 64

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 160 TO 320 GeV**2.

Table 65

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 320 TO 640 GeV**2.

Table 66

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 640 TO 1280 GeV**2.

Table 67

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 1280 TO 2560 GeV**2.

Table 68

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 2560 TO 5120 GeV**2.

Table 69

Differential distribution for event shape (KOUT/Q) corrected to the hadron level for the Q**2 range 5120 TO 10240 GeV**2.

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