Preliminary Mass Results (Last update 13/06/01 )

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Systematics

Results obtained with:

GAL version xxx
JUL version xxx
MIN version 202
DBA version 307
ntuple maker version 1.2
selections were made using

		NN trained at	cut at			NN trained at	cut at			NN trained at	cut at			NN trained at	cut at
182.655	e	189	0.60	188.600	e	189	0.60	191.584	e	196	0.60	195.519	e	196	0.60
	µ	189	0.60		µ	189	0.60		µ	196	0.60		µ	196	0.60
	t	189	0.40		t	189	0.40		t	196	0.40		t	196	0.40
	4q	189	0.30		4q	189	0.30		4q	189	0.30		4q	196	0.30
199.516	e	200	0.60	201.625	e	200	0.60	204.860	e	207	0.60	206.530	e	207	0.60
	µ	200	0.60		µ	200	0.60		µ	207	0.60		µ	207	0.60
	t	200	0.40		t	200	0.30		t	207	0.30		t	207	0.40
	4q	196	0.30		4q	196	0.30		4q	207	0.30		4q	207	0.30

Table of Results

N₁ = number of events selected by NN
N₂ = number of events selected for mass measurement

DM = expected statistical error (from samples) in GeV/c²
DM₂₀₀ = expected statistical error (for an integrated luminosity of 200 pb^-1) in GeV/c²
^{For the Data, the first error is
statistical, then systematic, including the error due to LEP
energy}. ^{For the 4q}
^{channel, an additional error comes from
FSI, which is propagated as the last error on the total of all
channels.}

NB:
Present mass numbers for Ecm=182.65 and 188.6 GeV are from the published papers.
The other numbers are given by D. Boumediene, G. Leibenguth, A. Moutoussi and J. Nowell.
DM is normalized to the observed number of events for published numbers and normalized to the theoretically expected
number of events for the unpublished. For instance the expected error in the 4q channel at 189 GeV is 96 MeV/c²
(90 MeV/c² if scaled to 200 pb^-1), but due to the low number of observed events, the expected error is rescaled to 101 MeV/c².
Some cells are clickable for more details.
Systematic errors are taken from the tables below.
The error on M4q-Ml is the overall stat+syst error (same for the expectation)

Ecm

L(pb^-1)

ch

N₁

N₂

DM
DM₂₀₀
Data (GeV/c²)

weight

172.090

10.650

e
14 - 0.664 0.153 80.540±0.664 ±0.112 0.23

µ
20 - 0.664 0.153 80.540±0.664 ±0.112 0.23

t
10 - 1.080 0.249 79.560±1.080 ±0.230 0.08

l
44 - 0.431 0.099 80.392±0.431 ±0.121 -

4q
65 - 0.470 0.108 81.300±0.470 ±0.083 ±0.037 0.46

all
109 - 0.318 0.073 80.816±0.318 ±0.099 ±0.017 -

M4q-Ml
109 - 0.641 - 0.914±0.641 -

182.655

56.812

e
130 94 0.293 0.156 80.428±0.269 ±0.039 0.23

µ
105 78 0.309 0.165 80.370±0.287 ±0.038 0.20

t
87 57 0.557 0.297 79.758±0.540 ±0.084 0.05

l
322 229 0.199 0.106 80.329±0.184 ±0.041 -

4q
461 384 0.178 0.095 80.461±0.177 ±0.037 ±0.037 0.51

all
783 613 0.133 0.071 80.398±0.128 ±0.037 ±0.019 -

M4q-Ml
783 613 0.268 - 0.135±0.257 -

188.600

174.200

e
- 290 0.150 0.140 80.319±0.154 ±0.038 0.23

µ
- 328 0.139 0.130 80.272±0.141 ±0.035 0.27

t
- 173 0.286 0.267 80.385±0.285 ±0.035 0.07

l
- 791 0.096 0.090 80.304±0.098 ±0.034 -

4q
- 1093 0.101 0.094 80.551±0.108 ±0.026 ±0.037 0.43

all
- 1884 0.070 0.065 80.411±0.072 ±0.029 ±0.016 -

M4q-Ml
- 1884 0.141 - 0.247±0.147 -

191.584

28.931

e
- 56 0.361 0.137 81.011±0.382 ±0.038 0.20

µ
- 60 0.342 0.130 80.353±0.361 ±0.031 0.22

t
59 55 - - 80.627±0.445 ±0.028 0.15

l
59 171 - - 80.654±0.226 ±0.031 -

4q
283 215 0.243 0.092 80.335±0.259 ±0.026 ±0.037 0.43

all
342 386 - - 80.517±0.170 ±0.028 ±0.016 -

M4q-Ml
342 386 - - -0.319±0.344 -

195.519

79.857

e
- 160 0.238 0.150 80.313±0.244 ±0.038 0.18

µ
- 162 0.224 0.142 80.898±0.222 ±0.030 0.22

t
154 142 0.315 0.199 80.553±0.284 ±0.028 0.13

l
154 464 0.145 0.092 80.614±0.142 ±0.030 -

4q
687 479 0.148 0.094 80.428±0.145 ±0.026 ±0.037 0.48

all
841 943 0.104 0.065 80.525±0.102 ±0.027 ±0.018 -

M4q-Ml
841 943 0.208 - -0.185±0.204 -

199.516

86.277

e
- 160 0.240 0.158 80.716±0.255 ±0.038 0.18

µ
- 186 0.215 0.141 80.185±0.216 ±0.030 0.26

t
180 165 0.310 0.204 80.311±0.306 ±0.027 0.13

l
180 511 0.142 0.093 80.384±0.145 ±0.030 -

4q
740 495 0.143 0.094 80.319±0.165 ±0.025 ±0.037 0.43

all
920 1006 0.101 0.066 80.356±0.109 ±0.027 ±0.016 -

M4q-Ml
920 1006 0.202 - -0.066±0.220 -

201.625

41.893

e
- 95 0.329 0.151 80.466±0.328 ±0.037 0.22

µ
- 89 0.299 0.137 80.946±0.298 ±0.030 0.27

t
173 75 0.482 0.221 80.193±0.492 ±0.027 0.10

l
173 259 0.201 0.092 80.639±0.201 ±0.031 -

4q
348 207 0.208 0.095 80.387±0.243 ±0.025 ±0.037 0.40

all
521 466 0.145 0.066 80.538±0.155 ±0.028 ±0.015 -

M4q-Ml
521 466 0.290 - -0.252±0.316 -

204.860

81.640

e
- 144 0.257 0.164 80.820±0.275 ±0.043 0.18

µ
- 167 0.238 0.152 80.443±0.270 ±0.037 0.19

t
166 152 0.352 0.225 80.801±0.381 ±0.035 0.09

l
166 463 0.156 0.100 80.663±0.172 ±0.034 -

4q
- 411 - - 80.580±0.155 ±0.027 ±0.037 0.54

all
166 874 - - 80.618±0.115 ±0.029 ±0.020 -

M4q-Ml
166 874 - - -0.083±0.232 -

206.530

133.650

e
- 248 0.204 0.167 80.792±0.202 ±0.043 0.19

µ
- 309 0.176 0.144 80.252±0.175 ±0.036 0.25

t
285 265 0.266 0.217 80.137±0.290 ±0.035 0.09

l
285 822 0.119 0.097 80.422±0.120 ±0.034 -

4q
- 689 0.121 0.099 80.615±0.124 ±0.027 ±0.037 0.47

all
285 1511 0.085 0.069 80.512±0.086 ±0.029 ±0.017 -

M4q-Ml
285 1511 0.171 - 0.192±0.174 -

19X energies

236.958

e
- 471 0.139 0.151 80.570±0.144 ±0.036 0.19

µ
- 497 0.128 0.139 80.586±0.128 ±0.029 0.25

t
566 437 - - 80.438±0.176 ±0.027 0.13

l
566 1405 - - 80.546±0.084 ±0.030 -

4q
2058 1396 0.086 0.094 80.376±0.093 ±0.025 ±0.037 0.42

all
2624 2801 - - 80.474±0.062 ±0.027 ±0.016 -

M4q-Ml
- - - - -0.171±0.126 -

20X energies

215.290

e
- 392 0.160 0.166 80.802±0.163 ±0.040 0.19

µ
- 476 0.142 0.147 80.309±0.147 ±0.034 0.23

t
451 417 0.212 0.220 80.381±0.231 ±0.032 0.10

l
451 1285 0.095 0.098 80.501±0.099 ±0.033 -

4q
- 1100 - - 80.601±0.097 ±0.027 ±0.037 0.48

all
451 2385 - - 80.549±0.069 ±0.029 ±0.018 -

M4q-Ml
- - - - 0.099±0.139 -

All available energies

693.910

e
144 1247 0.082 - 80.542±0.083 ±0.035 0.21

µ
125 1379 0.075 - 80.404±0.076 ±0.030 0.27

t
1114 1084 - - 80.370±0.122 ±0.029 0.11

l
1383 3710 - - 80.451±0.051 ±0.030 -

4q
2584 3973 - - 80.506±0.054 ±0.025 ±0.037 0.40

all
3967 7683 - - 80.472±0.038 ±0.028 ±0.015 -

M4q-Ml
3967 7683 - - 0.059±0.075 -

Systematics

LEP energy error is updated using tables below

Valid for 172 GeV sample

	DM (MeV/c²)
Source	enqq	mnqq	tnqq	l nqq	4q
(a) Correlated errors
Charged tracking	0	0	0	0	0
e+mu angle bias/resolution	0	0	0	0	0
e+mu momentum bias/resolution	0	0	0	0	0
Jet energy corrections	90	90	94	91	40
Jet energy resolution	0	0	0	0	0
Calorimeter simulation	47	47	187	68	56
Jet angle bias/resolution	0	0	0	0	0
Fragmentation	15	15	15	15	10
Missing radiative corrections	5	5	5	5	5
LEP energy	28	28	28	28	28
(b) Uncorrelated errors

Reference MC statistics	35	35	90	25	30
Background contamination	0	0	0	0	20
Colour reconnection	0	0	0	0	30
Bose-Einstein effects	0	0	0	0	22
Total (a+b)	112	112	230	120	91

Valid for 183 GeV sample

	DM (MeV/c²)
Source	enqq	mnqq	tnqq	l nqq	4q
(a) Correlated errors
Charged tracking	10	10	20	11	0
e+mu angle bias/resolution	0	0	0	0	0
e+mu momentum bias/resolution	0	0	0	0	0
Jet energy corrections	5	5	7	5	10
Jet energy resolution	0	0	0	0	0
Calorimeter simulation	20	20	74	26	22
Jet angle bias/resolution	0	0	0	0	0
Fragmentation	15	15	15	15	10
Missing radiative corrections	5	5	5	5	5
LEP energy	22	22	22	22	22
(b) Uncorrelated errors

Reference MC statistics	15	13	18	9	10
Background contamination	6	0	10	3	10
Colour reconnection	0	0	0	0	30
Bose-Einstein effects	0	0	0	0	22
Total (a+b)	38	37	84	40	52

Valid for 189 GeV sample

	DM (MeV/c²)
Source	enqq	mnqq	tnqq	l nqq	4q
(a) Correlated errors
Charged tracking	9	6	4	7	3
e+mu angle bias/resolution	15	15	0	13	0
e+mu momentum bias/resolution	8	7	0	7	0
Jet energy corrections	4	8	5	6	5
Jet energy resolution	10	10	10	10	7
Calorimeter simulation	15	10	5	11	10
Jet angle bias/resolution	4	4	5	4	5
Fragmentation	15	15	15	15	10
Missing radiative corrections	5	5	5	5	5
LEP energy	17	17	17	17	17
(b) Uncorrelated errors

Reference MC statistics	9	9	15	5	5
Background contamination	10	3	16	4	5
Colour reconnection	0	0	0	0	30
Bose-Einstein effects	0	0	0	0	22
Total (a+b)	38	34	34	33	45

Valid for 192 196 200 202 GeV samples

	DM (MeV/c²)
Source	enqq	mnqq	tnqq	l nqq	4q
(a) Correlated errors
Charged tracking	9	6	4	7	2
e+mu angle bias/resolution	0	0	0	0	0
e+mu momentum bias/resolution	4	5	0	3	0
Jet energy corrections	4	8	5	6	5
Jet energy resolution	10	10	7	9	2
Calorimeter simulation	20	5	5	10	9
Jet angle bias/resolution	10	7	7	8	8
Fragmentation	15	15	15	15	10
Missing radiative corrections	5	5	5	5	5
LEP energy	18	18	18	18	18
(b) Uncorrelated errors

Reference MC statistics	9	9	5	4	4
Background contamination	9	1	5	3	6
Colour reconnection	0	0	0	0	30
Bose-Einstein effects	0	0	0	0	22
Total (a+b)	37	30	27	30	45

Valid for 205 207 GeV samples

	DM (MeV/c²)
Source	enqq	mnqq	tnqq	l nqq	4q
(a) Correlated errors
Charged tracking	9	6	4	7	2
e+mu angle bias/resolution	0	0	0	0	0
e+mu momentum bias/resolution	4	5	0	4	0
Jet energy corrections	4	8	5	6	5
Jet energy resolution	10	10	7	9	2
Calorimeter simulation	20	5	5	11	9
Jet angle bias/resolution	10	7	7	8	8
Fragmentation	15	15	15	15	10
Missing radiative corrections	5	5	5	5	5
LEP energy	20	20	20	20	20
(b) Uncorrelated errors

Reference MC statistics	20	20	20	11	7
Background contamination	9	1	5	3	4
Colour reconnection	0	0	0	0	30
Bose-Einstein effects	0	0	0	0	22
Total (a+b)	42	36	34	33	46

Lep Energy Error (in MeV)

172	183	189	192	196	200	202	205	207
30	25	20	21	21	21	21	25	25

Lep Energy Error Correlation Matrix

	172	183	189	192	196	200	202	205	207
172	1	0.82	0.67	0.69	0.69	0.69	0.69	0.77	0.77
183	0.82	1	0.75	0.78	0.78	0.78	0.78	0.66	0.66
189	0.67	0.75	1	0.91	0.91	0.91	0.91	0.77	0.77
192	0.69	0.78	0.91	1	1	1	1	0.82	0.82
196	0.69	0.78	0.91	1	1	1	1	0.82	0.82
200	0.69	0.78	0.91	1	1	1	1	0.82	0.82
202	0.69	0.78	0.91	1	1	1	1	0.82	0.82
205	0.77	0.66	0.77	0.82	0.82	0.82	0.82	1	1
207	0.77	0.66	0.77	0.82	0.82	0.82	0.82	1	1

Ecm	L(pb^-1)	ch	N₁	N₂	DM	DM₂₀₀	Data (GeV/c²)	weight
172.090	10.650	e	14	-	0.664	0.153	80.540±0.664 ±0.112	0.23
		µ	20	-	0.664	0.153	80.540±0.664 ±0.112	0.23
		t	10	-	1.080	0.249	79.560±1.080 ±0.230	0.08
		l	44	-	0.431	0.099	80.392±0.431 ±0.121	-
		4q	65	-	0.470	0.108	81.300±0.470 ±0.083 ±0.037	0.46
		all	109	-	0.318	0.073	80.816±0.318 ±0.099 ±0.017	-
		M4q-Ml	109	-	0.641	-	0.914±0.641	-
182.655	56.812	e	130	94	0.293	0.156	80.428±0.269 ±0.039	0.23
		µ	105	78	0.309	0.165	80.370±0.287 ±0.038	0.20
		t	87	57	0.557	0.297	79.758±0.540 ±0.084	0.05
		l	322	229	0.199	0.106	80.329±0.184 ±0.041	-
		4q	461	384	0.178	0.095	80.461±0.177 ±0.037 ±0.037	0.51
		all	783	613	0.133	0.071	80.398±0.128 ±0.037 ±0.019	-
		M4q-Ml	783	613	0.268	-	0.135±0.257	-
188.600	174.200	e	-	290	0.150	0.140	80.319±0.154 ±0.038	0.23
		µ	-	328	0.139	0.130	80.272±0.141 ±0.035	0.27
		t	-	173	0.286	0.267	80.385±0.285 ±0.035	0.07
		l	-	791	0.096	0.090	80.304±0.098 ±0.034	-
		4q	-	1093	0.101	0.094	80.551±0.108 ±0.026 ±0.037	0.43
		all	-	1884	0.070	0.065	80.411±0.072 ±0.029 ±0.016	-
		M4q-Ml	-	1884	0.141	-	0.247±0.147	-
191.584	28.931	e	-	56	0.361	0.137	81.011±0.382 ±0.038	0.20
		µ	-	60	0.342	0.130	80.353±0.361 ±0.031	0.22
		t	59	55	-	-	80.627±0.445 ±0.028	0.15
		l	59	171	-	-	80.654±0.226 ±0.031	-
		4q	283	215	0.243	0.092	80.335±0.259 ±0.026 ±0.037	0.43
		all	342	386	-	-	80.517±0.170 ±0.028 ±0.016	-
		M4q-Ml	342	386	-	-	-0.319±0.344	-
195.519	79.857	e	-	160	0.238	0.150	80.313±0.244 ±0.038	0.18
		µ	-	162	0.224	0.142	80.898±0.222 ±0.030	0.22
		t	154	142	0.315	0.199	80.553±0.284 ±0.028	0.13
		l	154	464	0.145	0.092	80.614±0.142 ±0.030	-
		4q	687	479	0.148	0.094	80.428±0.145 ±0.026 ±0.037	0.48
		all	841	943	0.104	0.065	80.525±0.102 ±0.027 ±0.018	-
		M4q-Ml	841	943	0.208	-	-0.185±0.204	-
199.516	86.277	e	-	160	0.240	0.158	80.716±0.255 ±0.038	0.18
		µ	-	186	0.215	0.141	80.185±0.216 ±0.030	0.26
		t	180	165	0.310	0.204	80.311±0.306 ±0.027	0.13
		l	180	511	0.142	0.093	80.384±0.145 ±0.030	-
		4q	740	495	0.143	0.094	80.319±0.165 ±0.025 ±0.037	0.43
		all	920	1006	0.101	0.066	80.356±0.109 ±0.027 ±0.016	-
		M4q-Ml	920	1006	0.202	-	-0.066±0.220	-
201.625	41.893	e	-	95	0.329	0.151	80.466±0.328 ±0.037	0.22
		µ	-	89	0.299	0.137	80.946±0.298 ±0.030	0.27
		t	173	75	0.482	0.221	80.193±0.492 ±0.027	0.10
		l	173	259	0.201	0.092	80.639±0.201 ±0.031	-
		4q	348	207	0.208	0.095	80.387±0.243 ±0.025 ±0.037	0.40
		all	521	466	0.145	0.066	80.538±0.155 ±0.028 ±0.015	-
		M4q-Ml	521	466	0.290	-	-0.252±0.316	-
204.860	81.640	e	-	144	0.257	0.164	80.820±0.275 ±0.043	0.18
		µ	-	167	0.238	0.152	80.443±0.270 ±0.037	0.19
		t	166	152	0.352	0.225	80.801±0.381 ±0.035	0.09
		l	166	463	0.156	0.100	80.663±0.172 ±0.034	-
		4q	-	411	-	-	80.580±0.155 ±0.027 ±0.037	0.54
		all	166	874	-	-	80.618±0.115 ±0.029 ±0.020	-
		M4q-Ml	166	874	-	-	-0.083±0.232	-
206.530	133.650	e	-	248	0.204	0.167	80.792±0.202 ±0.043	0.19
		µ	-	309	0.176	0.144	80.252±0.175 ±0.036	0.25
		t	285	265	0.266	0.217	80.137±0.290 ±0.035	0.09
		l	285	822	0.119	0.097	80.422±0.120 ±0.034	-
		4q	-	689	0.121	0.099	80.615±0.124 ±0.027 ±0.037	0.47
		all	285	1511	0.085	0.069	80.512±0.086 ±0.029 ±0.017	-
		M4q-Ml	285	1511	0.171	-	0.192±0.174	-
19X energies	236.958	e	-	471	0.139	0.151	80.570±0.144 ±0.036	0.19
		µ	-	497	0.128	0.139	80.586±0.128 ±0.029	0.25
		t	566	437	-	-	80.438±0.176 ±0.027	0.13
		l	566	1405	-	-	80.546±0.084 ±0.030	-
		4q	2058	1396	0.086	0.094	80.376±0.093 ±0.025 ±0.037	0.42
		all	2624	2801	-	-	80.474±0.062 ±0.027 ±0.016	-
		M4q-Ml	-	-	-	-	-0.171±0.126	-
20X energies	215.290	e	-	392	0.160	0.166	80.802±0.163 ±0.040	0.19
		µ	-	476	0.142	0.147	80.309±0.147 ±0.034	0.23
		t	451	417	0.212	0.220	80.381±0.231 ±0.032	0.10
		l	451	1285	0.095	0.098	80.501±0.099 ±0.033	-
		4q	-	1100	-	-	80.601±0.097 ±0.027 ±0.037	0.48
		all	451	2385	-	-	80.549±0.069 ±0.029 ±0.018	-
		M4q-Ml	-	-	-	-	0.099±0.139	-
All available energies	693.910	e	144	1247	0.082	-	80.542±0.083 ±0.035	0.21
		µ	125	1379	0.075	-	80.404±0.076 ±0.030	0.27
		t	1114	1084	-	-	80.370±0.122 ±0.029	0.11
		l	1383	3710	-	-	80.451±0.051 ±0.030	-
		4q	2584	3973	-	-	80.506±0.054 ±0.025 ±0.037	0.40
		all	3967	7683	-	-	80.472±0.038 ±0.028 ±0.015	-
		M4q-Ml	3967	7683	-	-	0.059±0.075	-