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Strong Interactions in Spacelike and
Timelike Domains
Strong Interactions in
Spacelike and Timelike
Domains
Dispersive Approach
Alexander V. Nesterenko
Bogoliubov Laboratory of Theoretical Physics
Joint Institute for Nuclear Research
Dubna, Moscow region, Russian Federation
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ISBN: 978-0-12-803439-2
vii
Preface
ix
x Preface
A.V. Nesterenko
Dubna, Russia
June 2016
Acknowledgments
The author expresses his heartfelt gratitude to A.C. Aguilar, A.B. Arbuzov,
B.A. Arbuzov, A.P. Bakulev, G.S. Bali, V.V. Belokurov, A.V. Borisov,
N. Brambilla, G. Cvetic, F. De Fazio, A.E. Dorokhov, H.M. Fried, R. Kaminski,
A.L. Kataev, D.I. Kazakov, S.A. Larin, M. Loewe, K. Milton, S. Narison,
J. Papavassiliou, M. Passera, J. Portoles, G.M. Prosperi, F. Schrempp,
A.V. Sidorov, C. Simolo, I.L. Solovtsov, O.P. Solovtsova, O.V. Teryaev,
A. Vairo, and H. Wittig for the interest, stimulating comments, valuable advices,
fruitful discussions, and continuous support.
xi
Introduction
xiii
xiv Introduction
1. In QED the perturbative approach fails in the ultraviolet asymptotic at the energy scale of the
order of the Planck mass (see also Section 2.2).
Introduction xv
prediction for the latter. Section 1.3 recounts the Adler function D(Q2 ), derives
the corresponding dispersion relations, discusses the nonperturbative constraints
imposed by the latter, and portrays the experimental prediction for D(Q2 ).
Chapter 2 delineates the perturbative strong running coupling and its basic
features. In particular, Section 2.1 describes the renormalization group equation
for the QCD invariant charge, discusses the perturbative calculation of the
corresponding β function up to the five-loop level, and briefly recaps the
estimations of its coefficients, which have not been explicitly calculated yet.
Section 2.2 derives the solution of the renormalization group equation for the
strong running coupling at the one-loop level, examines its properties, and
describes the so-called matching procedure. Section 2.3 presents the solutions
of the renormalization group equation for the QCD invariant charge at the higher
loop levels and discusses their peculiarities. Chapter 3 elucidates the calculation
of the functions on hand within perturbative approach. Specifically, Section 3.1
derives the hadronic vacuum polarization function (q2 ) in the leading order in
the strong coupling, discusses the corresponding perturbative corrections up to
the four-loop level, and recounts the general features of the obtained expressions
for (q2 ). Section 3.2 presents the perturbative approximation for the Adler
function D(Q2 ) at the first four loop levels, describes its basic peculiarities,
and briefly discusses the estimations of the uncalculated yet higher-order
corrections. Section 3.3 derives the R-ratio of electron-positron annihilation into
hadrons in the leading order of perturbation theory, concisely recaps the most
salient features of the perturbative approximation of the function R(s) at the
higher loop levels, and expounds its general peculiarities. Chapter 4 presents
the essentials of the dispersive approach to QCD. Specifically, Section 4.1
derives the unified integral representations for (q2 ), R(s), and D(Q2 ), which
embody all the nonperturbative constraints imposed by the pertinent dispersion
relations and express the functions on hand in terms of the common spectral
density. Section 4.2 provides the explicit expression for the perturbative spectral
density at an arbitrary loop level and describes its basic features. Section 4.3
discusses the obtained integral representations for the functions on hand in
the massless limit and recounts its implications. Chapter 5 delineates the
calculation of the functions (q2 ), R(s), and D(Q2 ) within dispersively im-
proved perturbation theory and elucidates their salient distinctions. Specifically,
Section 5.1 studies the hadronic vacuum polarization function (q2 ) at the
one-loop level, discusses the pertinent higher loop corrections, compares the
function (q2 ) with its experimental prediction, and recounts the scheme
stability of the obtained results. Section 5.2 expounds the function R(s) at
the one-loop level, studies the higher loop corrections to R(s), examines its
scheme stability, and juxtaposes the obtained results with experimental data
on R-ratio by making use of the smearing method. Section 5.3 recounts the
Adler function D(Q2 ) at the one-loop level, examines the relevant higher loop
corrections, compares the function D(Q2 ) with its experimental prediction, and
expounds the scheme stability of the obtained results. Chapter 6 elucidates
Introduction xvii
The hadronic vacuum polarization function, as well as the related Adler function
and the R-ratio of electron-positron annihilation into hadrons, plays a significant
role in various issues of contemporary elementary particle physics. The theoreti-
cal description of these functions is inherently based on the perturbation theory,
which supplies the corresponding high-energy input, and dispersion relations,
which embody the pertinent low-energy kinematic constraints and enable one
to study the hadron dynamics in the timelike domain in a self-consistent way.
The functions on hand form the basis of the theoretical analysis of a variety
of the strong interaction processes, including the hadronic contributions to
precise electroweak observables, that, in turn, constitutes a decisive test of
Quantum Chromodynamics (QCD) and entire Standard Model and imposes
strict restrictions on a possible new fundamental physics beyond the latter.
1. It is assumed that both total cross sections on the right-hand side of Eq. (1.1) correspond to the
leading order in the electromagnetic fine structure constant αem = e2 /(4π ).
e− p1 k1 μ−
q
γ, Z
e+ p2 k2 μ+
FIG. 1.1 The process of the electron-positron annihilation into muon-antimuon pair in the lowest
order of perturbation theory.
1 e4
|Mfi |2 = 2 Tr (p̂1 + me )γν (p̂2 − me )γμ
4 4s
spin
with
uα (p, σ )ūβ (p, σ ) = (p̂ + m)βα , vα (p, σ )v̄β (p, σ ) = (p̂ − m)βα (1.5)
σ σ
being employed. In Eq. (1.4) me 0.511 MeV and mμ 105.66 MeV stand
for the masses of electrons and muons, respectively [84]. Then by making use
of the relations
Tr γμ γν = 4gμν , (1.6)
2r+1
Tr γμj = 0, r = 0, 1, 2, 3, . . . , (1.7)
j=1
Tr γμ γν γρ γσ = 4 gμν gρσ − gμρ gνσ + gμσ gνρ , (1.8)
one arrives at
Tr (p̂1 + me )γν (p̂2 − me )γμ = 4 p1μ p2ν + p2μ p1ν − (p1 p2 )gμν − m2e gμν
(1.9)
and
μ μ
Tr (k̂2 − mμ )γ ν (k̂1 + mμ )γ μ = 4 k1 k2ν + k2 k1ν − (k1 k2 )gμν − m2μ gμν .
(1.10)
Thus the expression (1.4) acquires the following form:
1 8e4
|Mfi |2 = 2 (p1 k1 )(p2 k2 ) + (p1 k2 )(p2 k1 ) + m2e (k1 k2 )
4 s
spin
s s
p2 = − m2e , k2 = − m2μ , (1.14)
4 4
and
⎛ ⎞
s⎝ 4m2e 4m2μ
(p1 k1 ) = (p2 k2 ) = 1 − cos ϕ 1 − 1− ⎠, (1.15)
4 s s
⎛ ⎞
s⎝ 4m2e 4m2μ
(p1 k2 ) = (p2 k1 ) = 1 + cos ϕ 1 − 1− ⎠, (1.16)
4 s s
s s
(p1 p2 ) =
− m2e , (k1 k2 ) = − m2μ , (1.17)
2 2
where ϕ denotes the angle between the three-momentum of electron p and
the three-momentum of muon k. Hence, Eq. (1.11) can be represented in the
following way:
1 4m 2 4m 2
4
e μ
|Mfi |2 = e4 1 + cos2 ϕ 1 − 1− + m2e + m2μ .
4 s s s
spin
(1.18)
p1 h
e− qf
q a
d
r
γ,Z o
e+ p2 qf n
s
FIG. 1.2 The process of the electron-positron annihilation into hadrons in the lowest order of
perturbation theory.
The obtained expression for the cross section of the process on hand (1.21) is a
rapidly decreasing function of the center-of-mass energy squared s. The electro-
magnetic running coupling αem entering Eq. (1.21), as well as its dependence
on the energy scale, was thoroughly studied in the works by Burkhardt and
Pietrzyk [85–89], Jegerlehner [90–93], and Hagiwara et al. [94–97], see also
review [98] and references therein. Note that the process of electron-positron
annihilation into muon-antimuon pair also involves intermediate Z boson (MZ
91.188 GeV [84]), which has to be accounted for separately (see Fig. 1.1).
Let us turn now to the process of the electron-positron annihilation into
hadrons. In the leading order of perturbation theory the latter is governed by the
diagram displayed in Fig. 1.2. The matrix element corresponding to the diagram
with intermediate photon takes the form
gμν
Mfi = iv̄[e] (p2 , σ2 )eγ μ u[e] (p1 , σ1 ) 2 |J ν (q)|0. (1.22)
q
As before, in this equation u[e] (p1 , σ1 ) and v̄[e] (p2 , σ2 ) stand for the Dirac
spinors of incoming electron with four-momentum p1 and spin σ1 and in-
coming
nf positron with four-momentum p2 and spin σ2 , respectively, Jν =
f =1 Q f :q̄f γν qf : denotes the electromagnetic quark current, nf is the number
of active flavors,2 Qf stands for the electric charge of the quark of f th flavor (in
units of the elementary charge e), and is a hadronic final state. The photon
propagator in Eq. (1.22) corresponds to the Feynman gauge, whereas q2 = s =
(p1 + p2 )2 > 0 denotes the respective timelike kinematic variable, namely, the
center-of-mass energy squared.
Following the very same lines as earlier, it is quite straightforward to
demonstrate that the total cross section of electron-positron annihilation into
hadrons can be represented as
α2
σ e+ e− → hadrons; s = 8π 2 em Lμν Hμν . (1.23)
s3
2. The number of active flavors is the number of quark flavors whose masses are less than the
characteristic energy of a process on hand, see Table 1.1 and Section 2.1.
6 Strong Interactions in Spacelike and Timelike Domains
d −1/3 4.8+0.5
−0.3 MeV
a
s −1/3 95 ± 5 MeVa
c 2/3 1.275 ± 0.025 GeVb
b −1/3 4.18 ± 0.03 GeVb
t 2/3 173.21 ± 0.87 GeVc
a Current quark mass in a mass-independent subtraction scheme at
μ = 2 GeV.
b Running mass in the MS scheme.
c Direct measurement.
In this equation Lμν denotes the leptonic tensor (the electron is assumed to be
massless hereinafter)
1 [e] ∗
Lμν = v̄ (p2 , σ2 )γμ u[e] (p1 , σ1 ) v̄[e] (p2 , σ2 )γν u[e] (p1 , σ1 )
4
spin
1
= qμ qν − gμν q2 − (p1 − p2 )μ (p1 − p2 )ν , (1.24)
2
and Hμν stands for the hadronic tensor
Hμν = (2π )4 δ (p1 + p2 − p ) 0|Jμ (−q)||Jν (q)|0
= d x eiqx 0|[Jμ (x), Jν (0)]|0,
4
q2 ≥ 4m2π , (1.25)
the physical fact that the hadrons can be produced √ in the process of electron-
positron annihilation only if the respective energy s is high enough, otherwise
the matrix element of the process on hand (1.22) and its square vanish (see also
discussion of this issue in, e.g., book [99] and papers [100, 101]). It is also
worthwhile to mention that the processes of creating the quark-antiquark pair
and its subsequent hadronization are commonly assumed to be well separated in
time and, hence, independent of each other.
Then it proves to be convenient to define the hadronic vacuum polarization
tensor (or the two-point correlation function of quark currents, as it is also
called)
i
μν (q ) = i d4 x eiqx 0|T{Jμ (x)Jν (0)}|0 =
2
(qμ qν − gμν q2 )(q2 )
12π 2
(1.28)
and isolate its scalar part (q2 ), the latter being the hadronic vacuum polariza-
tion function. By virtue of the optical theorem, the hadronic tensor Hμν (1.25) is
proportional to the discontinuity of the function μν (q2 ) across the physical cut
that eventually makes it possible to express the total cross section of the process
on hand in terms of (q2 ), specifically
4 αem
2
σ e+ e− → hadrons; s = Im lim (s + iε). (1.29)
3 s ε→0+
In this equation αem stands for the electromagnetic fine structure constant and
s denotes the center-of-mass energy squared. Therefore the R-ratio of electron-
positron annihilation into hadrons (1.1) acquires the form
1
R(s) = Im lim (s + iε). (1.30)
π ε→0+
103
102 f
w
101
r⬘
100
r
10–1
100 101 102
FIG. 1.3 The experimental data on R-ratio of electron-positron annihilation into hadrons (1.1).
(0)
A dashed line corresponds to the parton model prediction Rpert (s) (1.32). The displayed data are
available at http://pdg.lbl.gov/2015/hadronic-xsections.
values only for the energies exceeding the hadronic production threshold (i.e.,
for q2 ≥ 4m2π ), whereas Hμν ≡ 0 for q2 < 4m2π , and so does the function
R(s) (1.1), namely
R(s) ≡ 0, 0 ≤ s < 4m2π . (1.31)
Additionally, the aforementioned kinematic restriction implies that the hadronic
vacuum polarization function (q2 ) (1.28) has the only cut in the complex q2 -
plane, which starts at the hadronic production threshold q2 = 4m2π and goes
along the positive semiaxis of real q2 , see Fig. 1.4. Basically, this feature
also leads to a number of nonperturbative constraints on the related Adler
function D(Q2 ) (1.46), see Section 1.3 for details. In turn, as it will be discussed
in Chapter 4, all these restrictions play a substantial role in the study of the
functions on hand at low energies.
The experimental data on R-ratio of electron-positron annihilation into
hadrons are displayed in Fig. 1.3. As one can infer from this figure, a distinctive
feature of the function R(s) (1.1) is the presence of the resonance peaks, which
correspond to the bound states of quarks. The formation of the latter, which
involves all the tangled nonperturbative dynamics of colored fields, still has no
rigorous unabridged theoretical description. In particular, this fact implies that
the direct comparison of the experimental data on R-ratio with its perturbative
approximation Rpert (s) is sensible only in the energy intervals, which are located
far enough from the hadronic resonances. Alternatively, one can employ the
commonly used method of “smearing” the function R(s) [102], which averages
out the resonance structure of the R-ratio, see Section 5.2 for details.
Basic Dispersion Relations Chapter | 1 9
Fig. 1.3 also displays the so-called naive parton model prediction (dashed
line)
nf
(0)
Rpert (s) = Nc Q2f , s → ∞, (1.32)
f =1
which represents a rather rough approximation of the function R(s) and is valid
at high energies only, see Refs. [99, 103]. In particular, in the deep ultraviolet
limit the effects due to the masses of all the involved particles, as well as
the strong corrections to the process on hand, can be safely neglected. In this
case the only distinction between the cross sections of two processes displayed
in Figs. 1.1 and 1.2 is accounted for by the product of two factors (1.32).
Namely, the factor Nc = 3 comes from the fact that every quark can be in
three color states, whereas the factors Q2f are due to the difference between the
electric charges of the muon and quark of f th flavor. The numerical values of
the parton model prediction (1.32), as well as the values of the factor entering the
calculation of the singlet part of the hadronic vacuum polarization function
at the higher loop levels (see Section 3.2), are listed in Table 1.2. Note that
since the factor (1.32) appears in front of all the functions on hand, it will
be omitted in what follows. It is also worthwhile to mention that an accurate
theoretical analysis of the R-ratio of electron-positron annihilation into hadrons
surely requires the proper account of the higher-order (in the strong coupling)
contributions to the hadronic vacuum polarization function (q2 ) (1.28). The
detailed description of this issue will be given in the next chapters.
It is necessary to emphasize that the results of the QCD perturbation theory
are not directly applicable to the study of the strong interaction processes
in the timelike domain (see papers [100, 101, 104–108]). In particular, the
10 Strong Interactions in Spacelike and Timelike Domains
with x0 being the subtraction point. Thus, for the function (q2 ) (1.28) the
Cauchy’s integral formula (1.34) subtracted at a point q20 reads
1 2 (ξ )
(q2 , q20 ) = (q − q20 ) dξ . (1.35)
2πi (ξ − q2 )(ξ − q20 )
C
Basic Dispersion Relations Chapter | 1 11
FIG. 1.4 The integration contour C in the complex ξ -plane in the subtracted Cauchy’s integral
formula (1.35). The physical cut ξ ≥ 4m2π of the hadronic vacuum polarization function (ξ ) (1.28)
is shown along the positive semiaxis of real ξ .
In this equation (q2 , q20 ) = (q2 ) − (q20 ), whereas the closed integration
contour C, which encloses3 both points q2 and q20 (commonly, one chooses
q20 = 0) and goes counterclockwise along the circle of infinitely large radius,
is displayed in Fig. 1.4. Because the integration along the circles of infinitely
large (c∞ ) and infinitesimal (cm ) radii gives no contribution to Eq. (1.35), the
hadronic vacuum polarization function can be represented as
⎡
∞+iε
q − q0
2 2
⎢ (ξ ) dξ
(q , q0 ) =
2 2
lim ⎣
2πi ε→0+ (ξ − q2 )(ξ − q20 )
4m2π +iε
⎤
4m2π −iε
(ξ ) dξ ⎥
+ ⎦. (1.36)
(ξ − q2 )(ξ − q20 )
∞−iε
3. Since both points q2 and q20 must be enclosed by the integration contour C in Eq. (1.35), for
real q2 and q20 only the values q2 < 4m2π and q20 < 4m2π can be chosen. The implications of this
fact for the massless limit will be discussed in Sections 4.3 and 5.1.
12 Strong Interactions in Spacelike and Timelike Domains
∞
(s − iε)
− ds + O(ε). (1.38)
(s − q2 )(s − q20 )
4m2π
Hence, the once-subtracted Cauchy’s integral formula for (q2 ) (1.35) can be
represented as
∞
q2 − q20 (s + iε) − (s − iε)
(q2 , q20 ) = lim ds. (1.39)
2πi ε→0+ (s − q2 )(s − q20 )
4m2π
Recall that for the function (ξ ), which satisfies the condition (ξ * ) = * (ξ ),
its discontinuity across the physical cut reads
1 1
R(s) = Im lim (s + iε) = lim [(s + iε) − (s − iε)] . (1.40)
π ε→0+ 2πi ε→0+
Thus, the dispersion relation for the hadronic vacuum polarization func-
tion (q2 ) subtracted at a point q20 acquires the well-known form
∞
R(s)
(q 2
, q20 ) = (q2
− q20 ) ds. (1.41)
(s − q2 )(s − q20 )
4m2π
4. That signifies that the hadronic vacuum polarization function (q2 ) is free of the unphysical
singularities.
Basic Dispersion Relations Chapter | 1 13
Specifically, for this purpose the function R(s) entering the integrand of
Eq. (1.41) can be approximated by the experimental data on the R-ratio (1.1)
at low and intermediate energies and by its perturbative expression5 at high
energies, namely
()
R(s) θ (s0 − s)Rdata (s) + θ (s − s0 )Rpert (s). (1.42)
In this equation θ (x) stands for the Heaviside unit step function (1.27), whereas
the parameter s0 of the dimension of mass squared specifies the energy scale
()
of matching6 of the quantities Rdata (s) and Rpert (s), and has to be chosen
()
large enough to securely make the perturbative approximation Rpert (s) reliable
for all s ≥ s0 . Thus, the experimental prediction for the hadronic vacuum
polarization function (q2 ) can be represented in the following form:
s0 ∞
(q2 − q20 )Rdata (s) (q2 − q20 )R()
pert (s)
exp (q 2
, q20 ) = ds + ds. (1.43)
(s − q2 )(s − q20 ) (s − q2 )(s − q20 )
4m2π s0
As one might note, in general, the function exp (q2 , q20 ) (1.43) depends on the
value of parameter s0 , on the loop level , and (at the higher loop levels) on the
employed renormalization scheme.
In fact, the experimental predictions for all the quantities related to the
hadronic vacuum polarization function can be obtained in the very same
way as for (q2 ) itself. For example, the approximation (1.42) is commonly
employed for the evaluation of the Adler function D(Q2 ) in the infrared domain
(see Section 1.3), as well as for the assessment of the hadronic contributions
to such electroweak observables, as the muon anomalous magnetic moment
and the shift of the electromagnetic fine structure constant at the scale of
Z boson mass, see reviews [112–118] and recent papers [93, 96, 119–121] for
the details. It is also worthwhile to mention that for the energies below the mass
of τ lepton (i.e., for s < Mτ2 , Mτ 1.777 GeV [84]) the experimental data on R-
ratio of electron-positron annihilation into hadrons can be substituted by the so-
called inclusive τ lepton hadronic decay vector spectral function. The original
measurements of the latter by ALEPH and OPAL Collaborations, as well as its
recent updates can be found in papers [122–125] and [126–131], respectively.
However, to make such substitution justified one has to properly account for the
effects due to the breaking of the isospin symmetry, see papers [132–134] and
references therein for a detailed discussion of this issue.
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[16]Cookies, sugar Two 24 .83 7 22 71
Corn flakes, toasted Ord. cer. dish f’l. 27 .97 11 1 88
[16]Corn meal, granular,
2½ level tbsp. 27 .96 10 5 85
av.
Corn meal, unbolted, av. Three tbsp. 26 .92 9 11 80
[16]Crackers, graham Two crackers 23 .82 9.5 20.5 70
[16]Crackers, oatmeal Two crackers 23 .81 11 24 65
[16]Crackers, soda 3½ “Uneedas” 24 .83 9.4 20 70.6
[16]Hominy, cooked Large serving 120 4.2 11 2 87
[16]Macaroni, av. 27 .96 15 2 83
Macaroni, cooked Ord. serving 110 3.85 14 15 71
[16]Oatmeal, boiled 1½ serving 159 5.6 18 7 75
[16]Popcorn 24 .86 11 11 78
[16]Rice, uncooked 28 .98 9 1 90
[16]Rice, boiled Ord. cereal dish 87 3.1 10 1 89
[16]Rice, flakes Ord. cereal dish 27 .94 8 1 91
[16]Rolls, Vienna, av. One large roll 35 1.2 12 7 81
[16]Shredded wheat One biscuit 27 .94 13 4.5 82.5
[16]Spaghetti, average 28 .97 12 1 87
[16]Wafers, vanilla Four 24 .84 8 13 71
Wheat, flour, e’t’e w’h’t,
Four tbsp. 27 .96 15 5 80
av.
[16]Wheat, flour, graham,
4½ tbsp. 27 .96 15 5 80
av.
[16]Wheat, flour, patent,
MISCELLANEOUS
[16]Eggs, hen’s boiled One large egg 59 2.1 32 68 00
[16]Eggs, hen’s whites Of six eggs 181 6.4 100 0 00
[16]Eggs, hen’s yolks Two yolks 27 .94 17 83 00
[16]Omelet 94 3.3 34 60 6
[16]Soup, beef, av. 380 13. 69 14 17
[16]Soup, bean, av. Very large plate 150 5.4 20 20 60
[16]Soup, cream of celery Two plates 180 6.3 16 47 37
[16]Consomme 830 29. 85 00 15
[16]Clam chowder Two plates 230 8.25 17 18 65
[16]Chocolate, bitter Half-a-square 16 .56 8 72 20
[16]Cocoa 20 .69 17 53 30
Ice cream (Phila) Half serving 45 1.6 5 57 38
Ice cream (New York) Half serving 48 1.7 7 47 46
GIRLS
Age Height in Weight in Surface in Calories or
Inches Pounds Square Feet Food Units
5 41.29 39.66 7.7 784.5
6 43.35 43.28 8.1 831.9
7 45.52 47.46 8.5 881.7
8 47.58 52.04 9.2 957.1
9 49.37 57.07 9.7 1,018.5
10 51.34 62.35 10.2 1,081.0
11 53.42 68.84 10.7 1,148.5
12 55.88 78.31 11.8 1,276.8
MEN
Height Weight Surface in Calories or Food Units
in In. in Pounds Square Ft. Proteids Fats Carbohydrates Total
61 131 15.92 197 591 1,182 1,970
62 133 16.06 200 600 1,200 2,000
63 136 16.27 204 612 1,224 2,040
64 140 16.55 210 630 1,260 2,100
65 143 16.76 215 645 1,290 2,150
66 147 17.06 221 663 1,326 2,210
67 152 17.40 228 684 1,368 2,280
68 157 17.76 236 708 1,416 2,360
69 162 18.12 243 729 1,458 2,430
70 167 18.48 251 753 1,506 2,510
71 173 18.91 260 780 1,560 2,600
72 179 19.34 269 807 1,614 2,690
73 185 19.89 278 834 1,668 2,780
74 192 20.33 288 864 1,728 2,880
75 200 20.88 300 900 1,800 3,000
WOMEN
Height Weight Surface in Calories or Food Units
in In. in Pounds Square Ft. Proteids Fats Carbohydrates Total
59 119 14.82 179 537 1,074 1,790
60 122 15.03 183 549 1,098 1,830
61 124 15.29 186 558 1,116 1,860
62 127 15.50 191 573 1,146 1,910
63 131 15.92 197 591 1,182 1,970
64 134 16.13 201 603 1,206 2,010
65 139 16.48 209 627 1,254 2,090
66 143 16.76 215 645 1,290 2,150
67 147 17.06 221 663 1,326 2,210
68 151 17.34 227 681 1,362 2,270
69 155 17.64 232 696 1,392 2,320
70 159 17.92 239 717 1,434 2,390
FOOTNOTES:
[14] The following receipts for fruit beverages are adapted from
Practical Diatetics by Alida Frances Pattee, Publisher, Mt. Vernon,
N. Y.
[15] “Nutrition and Diatetics” by Dr. W. S. Hall, D. Appleton &
Co., New York.
[16] Chemical Composition of American Food Materials,
Atwater and Bryant, U. S. Department of Agricultural Bull. No. 28.
[17] Experiments on Losses in Cooking Meats. (1900-03),
Grindley, U. S. Department of Agricultural Bull. No. 141.
[18] Laboratory number of specimen, as per Experiments on
Losses in Cooking Meat.
Contents
Abnormal Conditions, diet in, 233-282
Absorption of foods, 78-80
Achlochlorhydria Achlorhydria, 248
Adolescence, diet in, 228
Aged, diet for, 231
Albuminoids, 66, 122
Albuminized drinks, 287-289
Alcohol, 83-84
Alkali, 122
Anaemia, 49, 133, 210, 236
Appendix, 281
Appetite, 95-98
Apples, 125
Apricots, 125
Asparagus, 120
Bananas, 125-126
Barley water, 90, 175, 289
Beans, 120, 163
Beef, 128
Beef Extracts, 133
Beets, 116-118
Beverages, 183, 284-287
Bile, Influence on Digestion, 75
Biscuits, 146
Blackberries, 125
Bouillons, 133, 196
Bran, 141
Bread, 138, 143
Breathing, Effect of, 104-107
Breakfast foods, 150
Bright’s Disease, 270
Brussels Sprouts, 120
Butter, 55, 172
Buttermilk, 172
Dates, 125
Dandelions, 121
Dextrin, 57, 153
Dextrose, 63, 74
Diabetes, 264
Diets, 207
Diets, Classification of, 284-292
Diet, vegetable, 219-222
Dilation of Stomach, 248
Digestion, 67-80
Intestines, 74-77
Stomach, 69-71
Drinking at meals, 43
Dyspepsia, 239
Dysentery, 256
Indigestion, 239-254
Intestinal disorders, 251-255
Intestines, Work of, 89-91
Intestines, Inflammation of, 256
Iron, 48
Kidneys, 87-93
Kidneys, derangement of, 268
Legumes, 163
Lemons, 123-125
Lemonades, 186, 285-286
Lemon Whey, 286
Lentils, 168
Lettuce, 120
Limes, 123
Limewater, Proportions of, 176
Limewater, How to prepare, 175
Liver, Work of, 81-84, 92
Liver, Derangements of, 258
Lobsters, 129-130
Lungs, 87-93
Macaroni, 147
Magnesium, 122
Malted Milk, 178
Malates, 122
Maltose, 63, 69, 74
Meat, 127, 192, 199
Meat juice, how prepared, 290-291
Meat tea, how prepared, 291
Meat broth, how prepared, 291
Measures and Weights, 281-283, 299
Menus, 223-282
Milk, 170
Milk, clabbered, 180
Milk, skimmed, 161
Milk, condensed, 180
Milk, ways of serving, 287
Milk, tests, 176
Milk, sugar, 180
Milk junket, 186
Mind, Influence of, 110, 113
Mixed diet, 219-222
Mould, 146
Muscles, Work of, 84-86, 93
Mulberries, 125
Mutton, 128
Oatmeals, 156
Oatmeal water, 175, 290
Oats, 138
Obesity, 278
Olive Oil, 57
Onions, 117
Oranges, 123-125
Orangeade, 286
Oxidation, 26
Oxygen, 20
Oysters, 129-130
Raisins, 125
Raspberries, 125
Rectal Feeding, 256
Rennin, 71
Rennet, 175
Rheumatism, 275
Rhubarb, 120, 123
Rice, 138, 147
Rice Water, 290
Roots and Tubers, 115-119
Rye, 138
Salt, 47
Sago, 115-116
Saliva, office of, 69, 91
Salivary Digestion, 69, 71